Commonwealth legislation

AD/JETSTREAM/57 - Tail Unit De-Icing System

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This AD requires owners/operators and maintenance organisations of specified British Aerospace Jetstream Model 3100 and 3200 aeroplanes (limited to certain constructor numbers) to follow BAe Mandatory ASB 30-A-JA 920444: start recurring inspections within 150 flight hours and repeat every 150 hours until completing one of two corrective actions, with a final corrective deadline of 30 April 1993.

It responds to water entrapment in the tail de‑icing system that can freeze and restrict airflow; operators bear inspection and repair costs.

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Current sections

Direct links to the current provisions in AD/JETSTREAM/57 - Tail Unit De-Icing System.

AD/JETSTREAM/57 - Tail Unit De-Icing System

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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British Aerospace BAe 3100 (Jetstream) Series Aeroplanes

AD/JETSTREAM/57 Tail Unit De-Icing System 1/93

Applicability: All Model 3100, and All Model 3200 up to and including constructors number 969 and constructors number 971.

Requirement: Action in accordance with BAe Jetstream Mandatory ASB 30-A-JA 920444.

Compliance: Part 1: Within 150 hours time in service after 7 January 1993, and thereafter at intervals not to exceed 150 hours time in service until Part 2 or 3, as applicable, is accomplished.

Part 2 or 3: Prior to 30 April 1993.

Background: The manufacturer has determined that the possibility exists for water to become entrapped in the tail unit de-icing system. If sufficient water has collected, ice can form in cold conditions which could restrict or prevent the air flow, causing unsatisfactory operation of the tailplane de-icing boots.

Source text

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

1 AD/JETSTREAM/57 - Tail Unit De-Icing System