{"id":"F2008L03521","name":"AD/LYC/119 - ECi Cylinder Assemblies","slug":"ad-lyc-119-eci-cylinder-assemblies","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":120621,"registerId":"commonwealth-F2008L03521-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Lycoming Piston Engines","sectionType":"division","heading":"Lycoming Piston Engines","content":"### Lycoming Piston Engines\n\n| AD/LYC/119 | ECi Cylinder Assemblies | 12/2008 DM |\n| ---------- | ----------------------- | ---------- |\n\n```html\n

Applicability:

Lycoming Engines (formerly Textron Lycoming) models 320, 360, and 540 series, ''Parallel Valve'', reciprocating engines listed in Table 1 of this AD, with Engine Components, Inc (ECi) cylinder assembly, part number (P/N) AEL65102 series “Titan”, and with cylinder head, P/N AEL85099, with the following serial numbers (S/N) installed.

a. Cylinder assembly S/N 1138-02 through SN 35171- 22, (referred to in this AD as Group ''A'' cylinder assemblies); and

b. S/N 35239-01 through SN 37016-28 (referred to in this AD as Group ''B'' cylinder assemblies).

Note 1: The cylinder assembly P/N is at the crankcase end of the cylinder assembly, and might be difficult to see. As a guide in determining if your cylinder assemblies are affected, all affected cylinder assemblies have cylinder head P/N AEL85099. The cylinder head P/N is at the top the cylinder head, near the intake and exhaust valve springs, and is easier to locate than the cylinder assembly P/N.

Note 2: The set of numbers appearing on the cylinder, above and to the left of the SN, in the form of ''123456'' is not used for determining applicability.

This AD is not applicable to engines not overhauled or which have not had any cylinder assemblies replaced since new.

Table 1 - Engine Models

Cylinder Assembly Part Number:

Installed on Engine Models:

AEL65102-NST04

O-320-A1B, A2B, A2C, A2D, A3A, A3B, B2B, B2C, B2D, B2E, B3B, B3C, C2B, C2C, C3B, C3C, D1A, D1AD, D1B, D1C, D1D, D1F, D2A, D2B, D2C, D2F, D2G, D2H, D2J, D3G, E1A, E1B, E1C, E1F, E1J, E2A, E2B, E2C, E2D, E2E, E2F, E2G, E2H, E3D, E3H

IO-320-A1A, A2A, B1A, B1B, B1C, B1D, B1E, B2A, D1A, D1AD, D1B, D1C, E1A, E1B, E2A, E2B

AEIO-320-D1B, D2B, E1A, E1B, E2A, E2B

AIO-320-A1A, A1B, A2A, A2B, B1B, C1B

LIO-320-B1A

AEL65102-NST05

IO-320-C1A, C1B, C1F, F1A

LIO-320-C1A

AEL65102-NST06

O-320-A1A, A2A, A2B, A2C, A3A, A3B, A3C, E1A, E1B, E2A, E2C, (also, an O-320 model with no suffix)

IO-320-A1A, A2A

AEL65102-NST07

IO-320-B1A, B1B

LIO-320-B1A

AEL65102-NST08

O-320-B1A, B1B, B2A, B2B, B3A, B3B, B3C, C1A, C1B, C2A, C2B, C3A, C3B, C3C, D1A, D1B, D2A, D2B, D2C

AEL65102-NST10

O-360-A1A, A1C, A1D, A2A, A2E, A3A, A3D, A4A, B1A, B1B, B2A, B2B, C1A, C1C, C1G, C2A, C2B, C2C, C2D, D1A, D2A, D2B

IO-360-B1A, B1B, B1C

HO-360-A1A, B1A, B1B

HIO-360-B1A, B1B

AEIO-360-B1B

O-540-A1A, A1A5, A1B5, A1C5, A1D, A1D5, A2B, A3D5, A4A5, A4B5, A4C5, A4D5, B1A5, B1B5, B1D5, B2A5, B2B5, B2C5, B2C5D, B4A5, B4B5, B4B5D, D1A5, E1A, E4A5, E4B5, E4C5, F1A5, F1B5, G1A5, G2A5

IO-540-C1B5, C1C5, C2C, C4B5, C4B5D, C4C5, D4A5, D4B5, N1A5, N1A5D

AEL65102-NST12

O-360-A1A, A1AD, A1D, A1F, A1F6, A1F6D, A1G, A1G6, A1G6D, A1H, A1H6, A1J, A1LD, A1P, A2A, A2D, A2F, A2G, A2H, A3A, A3AD, A3D, A4A, A4AD, A4D, A4G, A4J, A4JD, A4K, A4M, A4N, A4P, A5AD, B1A, B2C, C1A, C1C, C1E, C1F, C1G, C2A, C2B, C2C, C2D, C2E, C4F, C4P, D2A, F1A6, G1A6

HO-360-C1A

LO-360-A1G6D, A1H6

HIO-360-B1A, B1B, G1A

LTO-360-A1A6D

TO-360-A1A6D

IO-360-B1B, B1BD, B1D, B1E, B1F, B1F6, B1G6, B2E, B2F, B2F6, B4A, E1A, L2A, M1A, M1B

AEIO-360-B1B, B1D, B1E, B1F, B1F6, B1G6, B1H, B2F, B2F6, B4A, H1A, H1B

O-540-A4D5, B2B5, B2C5, B2C5D, B4B5, B4B5D, E4A5, E4B5, E4B5D, E4C5, G1A5, G1A5D, G2A5, H1A5, H1A5D, H1B5, H1B5D, H2A5, H2A5D, H2B5D

IO-540-C4B5, C4B5D, C4D5, C4D5D, D4A5, D4B5, D4C5, N1A5, N1A5D, T4A5D, T4B5, T4B5D, T4C5D, V4A5, V4A5D

AEIO-540-D4A5, D4B5, D4C5, D4D5

AEL65102-NST26

IO-540-J4A5, R1A5

TIO-540-C1A, E1A, G1A, H1A

AEL65102-NST38

IO-360-F1A

TIO-540-AA1AD, AB1AD, AB1BD, AF1A, AG1A, AK1A, C1A, C1AD, K1AD

LTIO-540-K1AD

AEL65102-NST43

O-360-J2A

O-540-F1B5, J1A5D, J1B5D, J1C5D, J1D5D, J2A5D, J2B5D, J2C5D, J2D5D, J3A5, J3A5D, J3C5D

IO-540-AB1A5, W1A5, W1A5D, W3A5D

AEL65102-NST44

O-540-L3C5D

AEL65102-NST07

IO-320-B1A, B1B

LIO-320-B1A

AEL65102-NST08

O-320-B1A, B1B, B2A, B2B, B3A, B3B, B3C, C1A, C1B, C2A, C2B, C3A, C3B, C3C, D1A, D1B, D2A, D2B, D2C

AEL65102-NST10

O-360-A1A, A1C, A1D, A2A, A2E, A3A, A3D, A4A, B1A, B1B, B2A, B2B, C1A, C1C, C1G, C2A, C2B, C2C, C2D, D1A, D2A, D2B

IO-360-B1A, B1B, B1C

B1A, B1B

HO-360-A1A,

HIO-360-B1A, B1B

AEIO-360-B1B

O-540-A1A, A1A5, A1B5, A1C5, A1D, A1D5, A2B, A3D5, A4A5, A4B5, A4C5, A4D5, B1A5, B1B5, B1D5, B2A5, B2B5, B2C5, B2C5D, B4A5, B4B5, B4B5D, D1A5, E1A, E4A5, E4B5, E4C5, F1A5, F1B5, G1A5, G2A5

IO-540-C1B5, C1C5, C2C, C4B5, C4B5D, C4C5, D4A5, D4B5, N1A5, N1A5D

AEL65102-NST12

O-360-A1A, A1AD, A1D, A1F, A1F6, A1F6D, A1G, A1G6, A1G6D, A1H, A1H6, A1J, A1LD, A1P, A2A, A2D, A2F, A2G, A2H, A3A, A3AD, A3D, A4A, A4AD, A4D, A4G, A4J, A4JD, A4K, A4M, A4N, A4P, A5AD, B1A, B2C, C1A, C1C, C1E, C1F, C1G, C2A, C2B, C2C, C2D, C2E, C4F, C4P, D2A, F1A6, G1A6

HO-360-C1A

LO-360-A1G6D, A1H6

HIO-360-B1A, B1B, G1A

LTO-360-A1A6D

TO-360-A1A6D

IO-360-B1B, B1BD, B1D, B1E, B1F, B1F6, B1G6, B2E, B2F, B2F6, B4A, E1A, L2A, M1A, M1B

AEIO-360-B1B, B1D, B1E, B1F, B1F6, B1G6, B1H, B2F, B2F6, B4A, H1A, H1B

O-540-A4D5, B2B5, B2C5, B2C5D, B4B5, B4B5D, E4A5, E4B5, E4B5D, E4C5, G1A5, G1A5D, G2A5, H1A5, H1A5D, H1B5, H1B5D, H2A5, H2A5D, H2B5D

IO-540-C4B5, C4B5D, C4D5, C4D5D, D4A5, D4B5, D4C5, N1A5, N1A5D, T4A5D, T4B5, T4B5D, T4C5D, V4A5, V4A5D

AEIO-540-D4A5, D4B5, D4C5, D4D5

AEL65102-NST26

IO-540-J4A5, R1A5

TIO-540-C1A, E1A, G1A, H1A

AEL65102-NST38

IO-360-F1A

TIO-540-AA1AD, AB1AD, AB1BD, AF1A, AG1A, AK1A, C1A, C1AD, K1AD

LTIO-540-K1AD

AEL65102-NST43

O-360-J2A

O-540-F1B5, J1A5D, J1B5D, J1C5D, J1D5D, J2A5D, J2B5D, J2C5D, J2D5D, J3A5, J3A5D, J3C5D

IO-540-AB1A5, W1A5, W1A5D, W3A5D

AEL65102-NST44

O-540-L3C5D

For information, the Lycoming Engines (formerly Textron Lycoming) models 320, 360, and 540 series, “Parallel Valve”, reciprocating engines are installed on, but not limited to, the aircraft listed in the following Table 2:

Table 2 - Engines Installed On, But Not Limited To

Engine Models:

Installed on , But Not Limited To:

O-320-A1A

Piper Aircraft: Tri-Pacer (PA-22 “150”, PA-22S “150”), Apache (PA-23), Pawnee (PA-25)

Doyn Aircraft: Doyn-Cessna (170, 170A, 170B)

Mooney Aircraft: Mark (20A)

Dinfia: Ranquel (1A-46)

Simmering-Graz Pauker: Flamingo (SGP-M-222)

Aviamilano: Scricciolo (P-19)

Vos Helicopter Co.: Spring Bok

O-320-A1B

Piper Aircraft: Tri-Pacer (PA-22 “150”, PA-22S “150”), Apache (PA-23)

Doyn Aircraft: Doyn-Cessna (170, 170A, 170B)

S.O.C.A.T.A.: Horizon (Gardan)

O-320-A2A

Piper Aircraft: Tri-Pacer (PA-22 “150”, PA-22S “150”), Agriculture (PA-18A “150”) Super Cub (PA-18 “150”), Caribbean (PA-22 “150”), Pawnee (PA-25)

Intermountain Mfg. Co.: Call Air Texas (A-5, A-5T)

Lake Aircraft: Colonial (C-1)

Rawdon Bros.: Rawdon (T-1, T-15, T-15D)

Shinn Engineering: Shinn (2150-A)

Dinfia: Ranquel (1A)46)

Neiva: (1PD-5802)

Sud: Gardan-Horizon (GY-80)

LaVerda: Falco (F8L Series II, America)

Malmo: Vipan (MF1-10)

Kingsford Smith: Autocrat (SCRM-153)

Aero Commander: 100

O-320-A2B\"\"

Piper Aircraft: Tri-Pacer (PA-22 “150”, PA-22S “150”), Cherokee (PA-28 “150”), Super Cub (PA -18 “150”)

Champion Aircraft: Challenger (7GCA, 7GCB, 7KC), Citabria (7GCAA, 7GCRC), Agriculture (7GCBA)

Beagle: Pup (150)

Artic: Interstate S1B2

Robinson: R-22

Varga: Kachina 2150A

O-320-A2C\"\"

Robinson: R-22

Cicare: Cicare AG

Bellanca Aircraft: Citabria 150 (7GCAA), Citabria 150S (7GCBC)

O-320-A2D

Piper Aircraft: Apache (PA-23)

O-320-A3A

Doyn Aircraft: Doyn-Cessna (170, 170A, 170B)

Corben-Fettes: Globe Special (Globe GC-1B)

O-320-A3B\"\"

Piper Aircraft: Apache (PA-23)

Doyn Aircraft: Doyn-Cessna (170, 170A, 170B)

Teal II: TSC (1A2)

O-320-B1A

Piper Aircraft: Apache (PA-23 “160”)

Doyn Aircraft: Doyn-Cessna (170, 170A, 170B)

Malmo: Vipan (MF1-10)

O-320-B1B

\"\"

Piper Aircraft: Apache (PA-23 “160”)

Doyn Aircraft: Doyn-Cessna (170, 170A, 170B)

O-320-B2A

Piper Aircraft: Tri-Pacer (PA-22 “160”, PA-22S “160”)

O-320-B2B\"\"

Piper Aircraft: Tri-Pacer (PA-22 “160”, PA-22S “160”)

Beagle: Airedale (D5-160)

Fuji-Heavy Industries: Fuji (F-200)

Uirapuru: Aerotec 122

O-320-B2C

Robinson: R-22

O-320-B2D

Maule: MX-7-160

O-320-B2E

Lycon

O-320-B3A\"\"

Piper Aircraft: Apache (PA-23 “160”)

Doyn Aircraft: Doyn-Cessna (170, 170A, 170B)

O-320-B3B\"\"

Piper Aircraft: Apache (PA-23 “160”)

Doyn Aircraft: Doyn-Cessna (170, 170A, 170B)

Sud: Gardan (GY80-160)

O-320-C1A\"\"

Piper Aircraft: Apache (PA-23 “160”)

Riley Aircraft: Rayjay (Apache)

O-320-C1B

Piper Aircraft: Apache (PA-23 “160”)

O-320-C3A

Piper Aircraft: Apache (PA-23 “160”)

O-320-C3B

Piper Aircraft: Apache (PA-23 “160”)

O-320-D1A

Sud: Gardan (GY-80)

Gyroflug: Speed Cancard

Grob: G115

O-320-D1F

Slingsby: T67 Firefly

O-320-D2A\"\"

Piper Aircraft: Cherokee (PA-28S “160”)

Robin: Major (DR400-140B), Chevalier (DR-360), (R-3140)

S.O.C.A.T.A.: Tampico TB9

Slingsby: T67C Firefly

Daetwyler: MD-3-160

Nash Aircraft Ltd.: Petrel

Aviolight: P66D Delta

General Avia: Pinguino

O-320-D2B\"\"

Beech Aircraft: Musketeer (M-23)

Piper Aircraft: Cherokee (PA-28 “160”)

O-320-D2J

Cessna Aircraft: Skyhawk 172

O-320-D3G

Piper Aircraft: Warrior II, Cadet (PA-28-161)

O-320-E1A

Grob: G115

O-320-E1C

M.B.B. (Messerschmitt-Boelkow-Blohm): Monsun
(BO-209-B)

O-320-E1F

M.B.B.: Monsun (BO-209-B)

O-320-E2A

Piper Aircraft: Cherokee (PA-28 “140”, PA-28 “150”)

Robin: Major (DR-340), Sitar, Bagheera (GY-100-135)

S.O.C.A.T.A.: Super Rallye (MS-886), Rallye Commodore (MS-892)

Siai-Marchetti: (S-202)

F.F.A.: Bravo (AS-202/15)

Partenavia: Oscar (P66B), Bucker (131 APM)

Aeromot: Paulistina P-56

Pezetel: Koliber 150

O-320-E2C

Beech Aircraft: Musketeer III (M-23III)

M.B.B.: Monsun (BO-209-B)

O-320-E2D

Cessna Aircraft: Cardinal (172-I, 177)

O-320-E2F

M.B.B.: Monsun (BO-209-B), Wassmer Pacific (WA-51)

O-320-E2G

American Aviation Corp.: Traveler

O-320-E3D

Piper Aircraft: Cherokee (140)

Beech Aircraft: Sport

IO-320-B2A

Piper Aircraft: Twin Comanche (PA-30)

IO-320-B1C

Hi. Shear: Wing

IO-320-B1D

Ted Smith Aircraft: Aerostar

IO-320-C1A

Piper Aircraft: Twin Comanche (PA-30 Turbo)

IO-320-D1A

M.B.B.: Monsun (BO-209-C)

IO-320-D1B

M.B.B.: Monsun (BO-209-C)

IO-320-E1A

M.B.B.: Monsun (BO-209-C)

IO-320-E1B

Bellanca Aircraft

IO-320-E2A

Champion Aircraft: Citabria

IO-320-E2B

Bellanca Aircraft

IO-320-F1A

CAAR Engineering: Carr Midget

LIO-320-B1A

Piper Aircraft: Twin Comanche (PA-39)

LIO-320-C1A

Piper Aircraft: Twin Comanche (PA-39)

AIO-320-B1B

M.B.B.: Monsun (BO-209-C)

AEIO-320-D1B

Slingsby: T67M Firefly

AEIO-320-D2B

Hundustan Aeronautics Ltd.: HT-2

AEIO-320-E1A\"\"

Bellanca Aircraft

Champion Aircraft

AEIO-320-E1B

Bellanca Aircraft

Champion Aircraft: Decathalon (8KCAB-CS)

AEIO-320-E2B

Bellanca Aircraft

Champion Aircraft: Decathalon (8KCAB)

O-320-A1A

Riley Aircraft: Riley Twin

O-360-A1A

Beech Aircraft: Travel Air (95, B-95)

Piper Aircraft: Comanche (PA-24)

Intermountain Mfg. Co.: Call Air (A-6)

Lake Aircraft: Colonial (C-2, LA-4, 4A or 4P)

Doyn Aircraft: Doyn-Cessna (170B, 172, 172A, 172B)

Mooney Aircraft: Mark “20B” (M-20B)

Earl Horton: Pawnee (Piper PA-25)

Dinfia: Ranquel (1A-51)

Neiva: (1PD-5901)

Regente: (N-591)

Wassmer: Super 4 (WA-50A), Sancy (WA-40), Baladou (WA-40), Pariou (WA-40)

Sud: Gardan (GY-180)

Bolkow: (207)

Partenavia: Oscar (P-66)

Siai-Marchetti: (S-205)

Procaer: Picchio (F-15-A)

S.A.A.B.: Safir (91-D)

Malmo: Vipan (MF-10B)

Aero Boero: AB-180

Beagle: Airedale (A-109)

DeHavilland: Drover (DHA-3MK3)

Kingsford-Smith: Bushmaster (J5-6)

Aero Engine Service Ltd.: Victa (R-2)

O-360-A1AD

S.O.C.A.T.A.: Tabago TB-10

O-360-A1D

Piper Aircraft: Comanche (PA-24)

Lake Aircraft: Colonial (LA-4, 4A or 4P)

Doyn Aircraft: Doyn-Beech (Beech 95)

Mooney Aircraft: Master “21” (M-20E), Mark “20B”, “20D”, (M20B, M20C), Mooney Statesman (M-20G)

Dinfia: Querandi (1A-45)

Wassmer: (WA-50)

Malmo: Vipan (MF1-10)

Cessna Aircraft: Skyhawk

Doyn Aircraft: Doyn-Piper (PA-23 “160”)

O-360-A1F6

Cessna Aircraft: Cardinal

O-360-A1F6D

Cessna Aircraft: Cardinal 177

Teal III: TSC (1A3)

O-360-A1G6

Aero Commander

O-360-A1G6D

Beech Aircraft: Duchess 76

O-360-A1H6

Piper Aircraft: Seminole (PA-44)

O-360-A1LD

Wassmer: Europa WA-52

O-360-A1P

Aviat: Husky

O-360-A2A

Center Est Aeronautique: Regente (DR-253)

S.O.C.A.T.A.: Rallye Commodore (MS-893)

Societe Aeronautique Normande: Mousquetaire (D-140)

Bolkow: Klemm (K1-107C)

Partenavia: Oscar (P-66)

Beagle: Husky (D5-180) (J1-U)

O-360-A2D

Piper Aircraft: Comanche (PA-24), Cherokee “C”
(PA-28 “180”)

Mooney Aircraft: Master “21” (M-20D), Mark “21” (M-20E)

O-360-A2E

Std. Helicopter

O-360-A2F

Aero Commander: Lark (100)

Cessna Aircraft: Cardinal

O-360-A2G

Beech Aircraft: Sport

O-360-A3A

C.A.A.R.P.S.A.N.: (M-23III)

Societe Aeronautique Normande: Jodel (D-140C)

Robin: Regent (DR400/180), Remorqueur (DR400/180R).
R-3170

S.O.C.A.T.A.: Rallye 180GT, Sportavia Sportsman (RS-180)

Norman Aeroplace Co.: NAC-1 Freelance

Nash Aircraft Ltd.: Petrel

O-360-A3AD

S.O.C.A.T.A.: TB-10

Robin: Aiglon (R-1180T)

O-360-A4A

Piper Aircraft: Cherokee “D” (PA-28 “180”)

O-360-A4D

Varga: Kachina

O-360-A4G

Beech Aircraft: Musketeer Custom III

O-360-A4K

Grumman American: Tiger

Beech Aircraft: Sundowner 180

O-360-A4M

Piper Aircraft: Archer II (PA-28 “18”)

Valmet: PIK-23

O-360-A4N

Cessna Aircraft: 172 (Optional)

O-360-A4P

Penn Yan: Super Cub Conversion

O-360-A5AD

C. Itoh and Co.: Fuji FA-200

O-360-B2C

Seabird Aviation: SB7L

O-360-C1A

Intermountain Mfg. Co.: Call Air (A-6)

O-360-C1E

Bellanca Aircraft: Scout (8GCBC-CS)

O-360-C1F

Maule: Star Rocket MX-7-180

O-360-C1G

Christen: Husky (A-1)

O-360-C2B

Hughes Tool Co.: (269A)

O-360-C2D

Hughes Tool Co.: (269A)

O-360-C2E

Hughes Tool Co.: (YHO-2HU) Military

Bellanca Aircraft: Scout (8GCBC FP)

O-360-C4F

Maule: MX-7-180A

O-360-C4P

Penn Yan: Super Cub Conversion

O-360-F1A6

Cessna Aircraft: Cutlass RG

O-360-J2A

Robinson: R22

IO-360-B1A

Beech Aircraft: Travel-Air (B-95A)

Doyn Aircraft: Doyn-Piper (PA-23 “200”)

IO-360-B1B

Beech Aircraft: Travel-Air (B-95B)

Doyn Aircraft: Doyn-Piper (PA-23 “200”)

Fuji: (FA-200)

IO-360-B1D

United Consultants: See-Bee

IO-360-B1E

Piper Aircraft: Arrow (PA-28 “180R”)

IO-360-B1F

Utva: 75

IO-360-B2E

C.A.A.R.P. C.A.P. (10)

IO-360-B1F6

Great Lakes: Trainer

IO-360-B1G6

American Blimp: Spector 42

IO-360-B2F6

Great Lakes: Trainer

LO-360-A1G6D

Beech Aircraft: Duchess

LO-360-A1H6

Piper Aircraft: Seminole (PA-44)

IO-360-E1A

T.R. Smith Aircraft: Aerostar

IO-360-L2A

Cessna Aircraft: Skyhawk C-172

IO-360-M1A

Diamond Aircraft: DA-40

IO-360-M1B

Vans Aircraft: RV6, RV7, RV8

Lancair: 360

AEIO-360-B1F

F.F.A.: Bravo (200)

Grob: G115/Sport-Acro

AEIO-360-B1G6

Great Lakes

AEIO-360-B2F

Mundry: CAP-10

AEIO-360-B4A

Pitts: S-1S

AEIO-360-H1A

Bellanca Aircraft: Super Decathalon (8KCAB-180)

AEIO-360-H1B

American Champion: Super Decathalon

VO-360-A1A

Brantly Hynes Helicopter: (B-2)

VO-360-A1B

Brantly Hynes Helicopter: (B-2, B2-A). Military (YHO-3BR)

VO-360-B1A

Brantly Hynes Helicopter: (B-2, B2-A)

IVO-360-A1A

Brantly Hynes Helicopter: (B2-B)

HO-360-B1A

Hughes Tool Co.: (269A)

HO-360-B1B

Hughes Tool Co.: (269A)

HO-360-C1A

Schweizer: (300C)

HIO-360-B1A

Hughes Tool Co.: Military (269-A-1). (TH-55A)

HIO-360-B1B

Hughes Tool Co.: (269A)

HIO-360-G1A

Schweizer: (CB)

O-540-A1A

Rhein-Flugzeugbau: (RF-1)

O-540-A1A5

Piper Aircraft: Comanche (PA-24 “180”)

Helio: Military (H-250)

Yoeman Aviation: (YA-1)

O-540-A1B5

Piper Aircraft: Aztec (PA-23 “250”), Comanche (PA-24 “250”)

O-540-A1C5

Piper Aircraft: Comanche (PA-24 “250”)

O-540-A1D

Found Bros.: (FBA-2C)

Dornier: (DO-28-B1)

O-540-A1D5

Piper Aircraft: Aztec (PA-23 “250”), Comanche (PA-24 “250”), Military Aztec (U-11A)

Dornier: (DO-28)

O-540-A2B

Aero Commander: (500)

Mid-States Mfg. Co.: Twin Courier (H-500), (U-5)

O-540-A3D5

Piper Aircraft: Navy Aztec (PA-23 “250”)

O-540-B1A5

Piper Aircraft: Apache (PA-23 “235”)

O-540-B1B5

Piper Aircraft: Comanche (PA-24 “250”)

Doyn Aircraft: Doyn-Piper (PA-24 “250”)

O-540-B1D5

Wassmer: (WA-421)

O-540-B2B5

Piper Aircraft: Pawnee (PA-25 “235”), Cherokee (PA-28 “235”), Aztec (PA -23 “235”)

Intermountain Mfg. Co.: Call Air (A-9)

Rawdon Bros.: Rawdon (T-1)

S.O.C.A.T.A.: Rallye 235CA

O-540-B2C5

Piper Aircraft: Pawnee (PA-25 “235”)

O-540-B4B5

Piper Aircraft: Cherokee (PA-28 “235”)

Embraer: Corioca (EMB-710)

S.O.C.A.T.A.: Rallye 235GT, Rallye 235C

Maule: Star Rocket (MX-7-235), Super Rocket (M-6-235), Super Std. Rocket (M-7-235)

O-540-E4A5

Piper Aircraft: Comanche (PA-24 “260”)

Aviamilano: Flamingo (F-250)

Siai-Marchetti: (SF-260), (SF-208)

O-540-E4B5

Britten-Norman: (BN-2)

Piper Aircraft: Cherokee Six (PA-32 “260”)

O-540-E4C5

Pilatus Britten-Norman: Islander (BN-2A-26), Islander
(BN-2A-27), Islander II (BN-2B-26), Islander (BN-2A-21), Trislander (BN-2A-Mark III-2)

O-540-F1B5

Omega Aircraft: (BS-12D1)

Robinson: (R-44)

O-540-G1A5

Piper Aircraft: Pawnee (PA-25 “260”)

O-540-H1B5D

Aero Boero: 260

O-540-H2A5

Embraer: Impanema “AG”

Gippsland: GA-200

O-540-H2B5D

Aero Boero: 260

O-540-J1A5D

Maule: Star Rocket (MX-7-235), Super Rocket (M-6-235), Super Std. Rocket (M-7-235)

O-540-J3A5

Robin: R-3000/235

O-540-J3A5D

Piper Aircraft: Dakota (PA-28-236)

O-540-J3C5D

Cessna Aircraft: Skylane RG

O-540-L3C5D

Cessna Aircraft: TR-182, Turbo Skylane RG

IO-540-C1B5

Piper Aircraft: Aztec B (PA-23 “250”), Comanche (PA-24 “250”)

IO-540-C1C5

Riley Aircraft: Turbo-Rocket

IO-540-C4B5

Piper Aircraft: Aztec C (PA-23 “250”), Aztec F

Wassmer: (WA4-21)

Avions Pierre Robin: (HR100/250)

Bellanca Aircraft: Aries T-250

Aerofab: Renegade 250

IO-540-C4D5

S.O.C.A.T.A.: TB-20

IO-540-C4D5D

S.O.C.A.T.A.: Trinidad TB-20

IO-540-D4A5

Piper Aircraft: Comanche (PA-24 “260”)

Siai-Marchetti: (SF-260)

IO-540-D4B5

Cerva: (CE-43 Guepard)

IO-540-J4A5

Piper Aircraft: Aztec (PA-23 “250”)

IO-540-R1A5

Piper Aircraft: Comanche (PA-24)

IO-540-T4A5D

General Aviation: Model 114

IO-540-T4B5

Commander: 114B

IO-540-T4B5D

Rockwell: 114

IO-540-T4C5D

Lake Aircraft: Seawolf

IO-540-V4A5

Maule: MT-7-260, M-7-260

Aircraft Manufacturing Factory

IO-540-V4A5D

Brooklands: Scoutmaster

IO-540-W1A5

Maule: MX-7-235, MT-7-235, M7-235

IO-540-W1A5D

Maule: Star Rocket (MX-7-235), Super Rocket (M-6-235), Super Std. Rocket (M-7-235)

IO-540-W3A5D

Schweizer: Power Glider

AEIO-540-D4A5

Christen: Pitts (S-2S), S-2B)

Siai-Marchetti: SF-260

H.A.L.: HPT-32

Slingsby: Firefly T3A

AEIO-540-D4B5

Moravan: Zlin-50L

H.A.L.: HPT-32

AEIO-540-D4D5

Burkhart Grob: Grob G, 115T Aero

TIO-540-C1A

Piper Aircraft: Turbo Aztec (PA-23-250)

TIO-540-K1AD

Piper Aircraft

TIO-540-AA1AD

Aerofab Inc.: Turbo Renegade (270)

TIO-540-AB1AD

S.O.C.A.T.A.: Trinidad TC TB-21

TIO-540-AB1BD

Schweizer

TIO-540-AF1A

Mooney Aircraft: “TLS” M20M

TIO-540-AG1A

Commander Aircraft: 114TC

TIO-540-AK1A

Cessna Aircraft: Turbo Skylane T182T

LTIO-540-K1AD

Piper Aircraft

\n```\n\n| Requirement: | 1. If the engine was overhauled or had a cylinder assembly replaced since new, do the following:a) Inspect the maintenance records and engine logbook to determine if the overhaul or repair facility used ECi cylinder assemblies, P/N AEL65102, with cylinder head, P/N AEL85099, with a S/N 1138-02 through SN35171-22, or a S/N 35239-01 through S/N 37016-28, installed.b) If the cylinder assemblies are not ECi, P/N AEL65102, no further action is required by this AD.c) If the cylinder assemblies are ECi, P/N AEL65102, and if the S/N is not listed in this AD, no further action is required by this AD.d) If the cylinder assemblies are ECi, P/N AEL65102, and if the S/N is listed in this AD, proceed to Requirement 2 or 3 as is applicable.Note 3: The classification of cylinders, into Group “A” or Group “B” is detailed in the applicability section of this AD. The classification will determine whether Requirement 2 or 3 applies.2. Group “A” Cylinder Assembliesa) Perform an initial visual inspection as specified in Requirement 4 of this AD of this AD, and an initial compression test as specified in Requirement 5 of this AD.b) Replace cylinder assemblies on:Engines installed in a helicopter, if the cylinder assembly has 1,500 operating hours Time In Service (TIS) or more on the effective date of this AD; andEngines installed in an aeroplane if the cylinder assembly has 2,000 operating hours TIS or more on the effective date of this AD.c) Perform repetitive visual inspections as specified in Requirement 4 of this AD, and repetitive compression tests as specified in Requirement 5 of this AD.d) Replace cylinder assemblies that pass the repetitive visual inspection and compression tests before exceeding:1,500 hours TIS if the engine is installed in a helicopter; or2,000 hours TIS if the engine is installed in an aeroplane. |\n| ------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n\n| | 3. Group “B” Cylinder Assembliesa) Perform an initial visual inspection as specified in Requirement 4 of this AD, and initial compression test as specified in Requirement 5 of this AD.b) Replace cylinder assemblies that have more than 350 hours TIS on the effective date of this AD.c) Replace cylinder assemblies that pass the visual inspection and compression tests before exceeding 350 hours TIS.4. Visual Inspectiona) Visually inspect around the exhaust valve side, for cracks or any signs of black or white residue of combustion leakage from cracks.b) Replace cracked cylinder assemblies.Note 4: Information on cylinder assembly visual inspection can be found in ECi Mandatory Service Bulletin (MSB) No. 08-1, Revision 3, dated August 19, 2008.5. Cylinder Assembly Compression Testa) Compression test the cylinder assembly.b) During the compression test, if the cylinder pressure gauge reads below 70 pounds-per-square-inch, apply a water and soap solution to the side of the leaking cylinder, near the head-to- barrel interface.c) Replace the cylinder assembly, if air leakage and bubbles are observed on the side of the cylinder assembly, near the head-to-barrel interface.d) Repair or replace the engine cylinder assembly if the cause of the low gauge reading in Requirement 5b of this AD is from leaking intake or exhaust valves, or from leaking piston rings.Note 5: Information on cylinder assembly compression testing can be found in ECi MSB No. 08-1, Revision 3, dated August 19, 2008.6. Do not install any ECi cylinder assembly, P/N AEL65102, with cylinder head,P/N AEL85099, and with SN 1138-02 through SN 35171-22, or SN 35239-01 through SN 37016-28, onto any engine, and do not attempt to repair or reuse these ECi cylinder assemblies.Note 6: FAA AD 2008-19-05 Amdt 39-15672 dated 5 September 2008 refers. |\n| --- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n\n| Compliance: | For Requirement 1 - Before further flight after the effective date of this AD.For Requirement 2a - If the cylinder assembly has 350 or more operating hours TIS on the effective date of this AD, but fewer than 2000 hours TIS on the effective date of this AD - Within 10 hours TIS; orIf the cylinder has fewer than 350 hours TIS on the effective date of this AD - Before exceeding 350 hours TIS.For Requirement 2b - Within the next 25 operating hours TIS after the effective date of this AD.For Requirement 2c - Within every 50 operating hours TIS.For Requirement 2d - After the effective date of this AD.For Requirement 3a - Within an additional 10 operating hours TIS after the effective date of this AD.For Requirement 3b - Within the next 25 operating hours TIS after the effective date of this AD.For Requirement 3c - After the effective date of this AD.For Requirement 4b - Before further flight.For Requirements 5c and 5d - Before further flight.For Requirement 6 - After the effective date of this AD. |\n| ----------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| | This Airworthiness Directive becomes effective on 20 October 2008. |\n\n| Background: | This AD requires initial and repetitive visual inspections and compression tests to detect cracks at the head-to-barrel interface, replacement of cylinder assemblies found cracked, and replacement of certain cylinder assemblies, at new reduced times-in-service. This AD results from reports of 45 failures with head separations of ECi cylinder assemblies. We are issuing this AD to prevent loss of engine power due to cracks at the head-to-barrel interface in the cylinder assemblies and possible engine failure caused by separation of a cylinder head, which could result in loss of control of the aircraft. |\n| ----------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n\n![](image.002.png) \nCharles Lenarcic \nDelegate of the Civil Aviation Safety Authority\n\n19 September 2008","sortOrder":0},{"sectionNumber":"AD/LYC/119","sectionType":"part","heading":"AD/LYC/119","content":"## AD/LYC/119","sortOrder":1},{"sectionNumber":"ECi Cylinder Assemblies","sectionType":"part","heading":"ECi Cylinder Assemblies","content":"## ECi Cylinder Assemblies","sortOrder":2},{"sectionNumber":"12/2008 DM","sectionType":"part","heading":"12/2008 DM","content":"## 12/2008 DM","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-realtime","completionTokens":2156},"content_quality":"ok","complexity_score":7,"scope_assessment":{"changed":false,"description":"The directive maintains its original targeted scope addressing the specific safety defect in ECi cylinder assemblies. The extensive tables of affected aircraft models serve an illustrative purpose to assist operators in identifying potentially affected fleets, without broadening the regulatory scope beyond the identified part numbers and serial number ranges."},"complexity_factors":["Bifurcated compliance paths between Group A and Group B cylinder serial numbers with fundamentally different hour limits","Different operating hour thresholds based on aircraft type: 1,500 hours for helicopters versus 2,000 hours for aeroplanes (Group A only)","Multiple cascading compliance deadlines (10 hrs, 25 hrs, 50 hrs TIS, and 'before further flight')","Conditional applicability requiring review of maintenance records to determine if engine was overhauled or cylinders replaced since new","Cross-reference to external technical document (ECi Mandatory Service Bulletin No. 08-1) for inspection procedures","Extensive tabular applicability data listing over 100 specific engine model variations"],"plain_english_summary":"This mandatory Airworthiness Directive targets Lycoming 320/360/540-series engines fitted with certain ECi \"Titan\" cylinder assemblies that can crack at the head-to-barrel interface, risking head separation, sudden power loss, and possible crash. It follows numerous reported failures.\n\nOperators must check records, perform required visual and compression inspections, and replace affected cylinders by specified flight-hour limits; the implicated ECi cylinders may not be repaired, reused, or installed. Compliance deadlines vary by cylinder age and group."},"flash_summary":{"complexity_score":7,"scope_assessment":{"changed":false,"description":"The AD's scope matches its stated safety purpose: identify ECi cylinder assemblies within the listed serial ranges, require inspections and compression tests, mandate replacement at reduced TIS limits, and prohibit reuse. It does not expand obligations beyond addressing head‑to‑barrel cracks and reported head separations; rather it narrows applicability by serial number and groups while imposing differentiated deadlines and inspection regimes."},"complexity_factors":["Long, specific serial‑number ranges requiring record and logbook checks to establish applicability.","Extensive list of engine models and sub‑models (many suffixes) across three engine families increases identification work.","Classification into Group “A” and Group “B” cylinders drives different technical and timing requirements.","Different time‑in‑service thresholds for helicopters versus aeroplanes and for Groups A/B (350, 1,500, 2,000 hours) complicate compliance.","Multiple compliance windows (before further flight; within 10, 25, or 50 TIS hours; and replacement deadlines) create scheduling complexity.","Technical inspection procedures require both visual checks for combustion leakage/cracks and compression testing (including soap/water leak check).","Absolute prohibition on reinstalling, repairing or reusing listed ECi parts imposes procurement and disposal actions on operators.","Reliance on external documents (ECi Mandatory Service Bulletin revisions and referenced FAA AD) for inspection detail adds cross‑document dependency.","Operational impacts include potential increased downtime, parts sourcing pressure, and cost shifts to operators and maintenance providers."],"plain_english_summary":"This Airworthiness Directive requires operators of Lycoming 320/360/540 “parallel valve” engines that have been overhauled or had cylinders replaced to check maintenance records for ECi cylinder assemblies (P/N AEL65102 with head P/N AEL85099) within specified serial‑number ranges. Identified cylinders must have initial and repetitive visual inspections and compression tests, be replaced at reduced time‑in‑service limits, and may not be repaired or reinstalled.\n\nIt affects aircraft and helicopter owners, maintenance organisations and parts suppliers, who will bear inspection, replacement and grounding costs and must increase inspection frequency to reduce the risk of cylinder‑head separation."}},"importantCases":[],"_links":{"self":"/api/acts/ad-lyc-119-eci-cylinder-assemblies","history":"/api/acts/ad-lyc-119-eci-cylinder-assemblies/history","analysis":"/api/acts/ad-lyc-119-eci-cylinder-assemblies/analysis","conflicts":"/api/acts/ad-lyc-119-eci-cylinder-assemblies/conflicts","importantCases":"/api/acts/ad-lyc-119-eci-cylinder-assemblies/important-cases","documents":"/api/acts/ad-lyc-119-eci-cylinder-assemblies/documents"}}