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AD/LYC/118 Amdt 2 - Superior Air Parts - Cylinder Assemblies
Lycoming Piston EnginesLycoming Piston Engines
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Lycoming Piston Engines
| AD/LYC/118 Amdt 2 | Superior Air Parts - Cylinder Assemblies | 6/2007 |
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| Applicability: | Lycoming Engines 320, 360, and 540 series reciprocating engines fitted with PMA cylinder assemblies, manufactured by Superior Air Parts (SAP) between April 2005 and November 2005, with the following part numbers (P/Ns):SL32000W-A1, SL32000W-A20P, SL32000W-A21P, SL32000WH-A1, SL32000WH-A20P, SL32006W-A1, SL32006W-A20P, SL32006W-A21P, SL36000TW-A1, SL36000TW-A20P, SL36000TW-A21P, SL36000TW-A22P, SL36000W-A1, SL36000W-A20P, SL36000W-A21P, SL36006W-A1,SL36006W-A20P, or SL36006W-A21P.These P/N cylinder assemblies may be installed in the following Lycoming engine models:• AEIO-320 -D, -E• AEIO-360 -B, -H• AEIO-540 -D• AIO-320 -A, -B, -C• HIO-360 -B• HO-360 -C• IO-320 -B, -D, -E• IO-360 -B, -L, -M• IO-540 -A, -C, -D, -N, -T, -V, -W• LIO-320 -B• LO-360 -A• O-320 -A, -B, -C, -D, -E, -H• O-360 -A, -B, -C, -D, -F, -G, -J• O-540 -A, -B, -E, -F, -G, -H, -JNote 1: A complete list of aircraft models, applicable Lycoming engines might be installed on, but not limited to, may be found in FAA Airworthiness Directive2007-04-19R1 amendment 39-15005 dated 23 March 2007. |
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| Requirement: | 1. Determine the P/N of the cylinder assemblies installed. If your engine is fitted with affected cylinder assemblies P/N identified in the applicability list of the AD, check the serial numbers (S/N) of the cylinder assemblies in accordance with Superior Air Parts, Inc Mandatory Service Bulletin (MSB) B06-01 Revision E dated 24 January 2007.Remove from service any cylinder assemblies that are affected by both the applicability of this AD and the S/N as detailed in the procedure given in SAP MSB B06-01 Rev E.2. Do not install any cylinder assembly with part numbers and serial numbers identified in Requirement 1 of this AD, into any engine.Note 2: FAA AD 2007-04-19 R1 Amendment 39-15005 dated 23 March 2007 refers. |
| Compliance: | 1. Before cylinder assemblies reach 150 hours total time in service (TTIS).Note 3: For aircraft with engine cylinder assemblies that have greater than 150 hours TTIS, special flight permits may be issued to ferry the aircraft to a maintenance base.2. After the effective date of this AD. |
| This Amendment becomes effective on 7 June 2007. | |
| Background: | This AD results from discovery of nine separated SAP cylinder assemblies installed in TCM 470, 520, and 550 series reciprocating engines and one separated SAP cylinder assembly installed in Lycoming Engines 320, 360, and 540 series engines. CASA is issuing this AD to prevent cylinder separation that can lead to engine failure, a possible engine compartment fire, and damage to the airplane.The current amendment corrects manufacturing date range based on Revision 1 of the FAA AD 2007-04-19 dated 23 March 2007 and makes a few editorial changes.The amendment 1 of this AD made reference to the cylinders assemblies detailed in the manufacturer’s service bulletin and became effective on 5 March 2007.The original issue of this AD became effective on 2 March 2007. |