Commonwealth legislation

AD/AL 250/20 Amdt 1 - Fuel Pump Drive Shaft - Inspection

RepealedCTH

This Act has been repealed and is no longer in force. It is retained for historical reference.

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

Requires recurring inspections of fuel‑pump drive shafts on aircraft with Allison 250‑C18, C20, or C20B engines fitted with dual fuel pumps P/N 6854292, 6857548, 6877719, 6856250, or 68763803 to prevent in‑flight drive‑shaft or fuel‑pump failure that could cause total engine loss.

Inspections begin within 100 hours time‑in‑service after 30 Sept 1978 and recur every 200 hours until the engine is permanently modified per the manufacturer service bulletins; procedures are in the referenced CSL documents.

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AD/AL 250/20 Amdt 1 - Fuel Pump Drive Shaft - Inspection

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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source Allison Turbine Engines - 250 Series

AD/AL 250/20

Amdt 1

Fuel Pump Drive Shaft - Inspection 9/78

Applicability: All 250-C18, C20 and C20B series fitted with dual element fuel pumps P/N 6854292, 6857548, 6877719, 6856250 and 68763803.

Document: 1. Allison 250-C18 CSL-61, Rev. 3; or

2. Allison 250-C20/C20B CSL-1007, Rev. 3.

Compliance: Within 100 hours’ time in service after 30 September 1978 and thereafter at intervals not exceeding 200 hours’ time in service until modified in accordance with Allison 250-C18 CEB-161 or 250-C20/C20B CEB-1051.

Source text

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