Commonwealth legislation

AD/F50/13 - Accessory Bay Ventilation Air Outlet

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Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

This directive requires operators of specific Fokker F50 (F27 Mk 50) aircraft (serials 20103–20108 and 20110–20134) to carry out the modification/inspection of the accessory-bay ventilation air outlet per Fokker Service Bulletin F50-54-004 by 31 May 1989. It aims to prevent moisture/ice ingress that can freeze control cables. Compliance costs and scheduling fall to the affected owners/operators; the SB is cited as the mandatory means of compliance.

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AD/F50/13 - Accessory Bay Ventilation Air Outlet

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source Fokker F50 (F27 Mk 50) Series Aeroplanes

AD/F50/13 Accessory Bay Ventilation Air Outlet 5/89

Applicability: S/No. 20103 to 20108 and 20110 to 20134 inclusive. Requirement: Action in accordance with Fokker S.B. F50-54-004.

Note: RLD AD 89-021 refers.

Compliance: Prior to 31 May 1989.

Background: Cold air moisture and rainwater can enter the aircraft through the ventilation air outlet. This has caused ice buildup on control cable systems at high altitude, low OAT and during high humidity conditions.

Source text

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