Commonwealth legislation

AD/BEECH 36/35 Amdt 1 - Turbocharger Inlet Assembly

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legislative instrument

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This Airworthiness Directive requires owners/operators of Beechcraft A36TC and B36TC aeroplanes with TCM TSIO-520-UB engines to inspect the welded turbocharger inlet assembly (TCM P/N 642668) for cracks and, if cracked, replace it with P/N 646795 in accordance with Beechcraft Service Communique No 70 (Requirement). Compliance must occur before initial issue of a Certificate of Airworthiness and at each maintenance‑release inspection; owners/operators pay inspection and replacement costs. The measure responds to cracked welds that can cause exhaust leaks, engine failure or fire (Compliance; Background).

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AD/BEECH 36/35 Amdt 1 - Turbocharger Inlet Assembly

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Beechcraft 36 (Bonanza) Series Aeroplanes

AD/BEECH 36/35

Amdt 1

Turbocharger Inlet Assembly 10/90

Applicability: All model A36TC or B36TC aircraft fitted with Teledyne Continental Motors (TCM) TSIO-520-UB engine.

Requirement: Inspect TCM P/N 642668, welded turbocharger inlet assembly for cracks especially in the weld joint just above the turbine inlet temperature boss. If a crack is found, replace P/N 642668 with P/N 646795 turbocharger inlet assembly before further flight, in accordance with Beechcraft Service Communique No 70.

Note 1: FAA AD 89-24-03 Amdt 39-6386 refers.

Note 2: To assist with identification, the 646795 assembly has 2 ribs approx 6 mm (0.25 inches) in height, 2.5 mm (0.1 inches) in width and 53 mm (2.1 inches) in length on top of the turbocharger mating flange.

Note 3: If P/N 642668 is not installed no further action is required.

Compliance: Before initial issue of a Certificate of Airworthiness. Thereafter reinspect at each inspection for issue of a Maintenance Release.

Background: The welded joints of the turbo charger inlet assembly have been found cracked. Exhaust leaks in this area have the potential to cause serious damage resulting in possible engine failure and/or fire.

Amendment 1 corrects typographical errors in Note 2 of the original issue.

Source text

Sourced from the Federal Register of Legislation (legislation.gov.au), CC BY 4.0.

1 AD/BEECH 36/35 Amdt 1 - Turbocharger Inlet Assembly