Commonwealth legislation

AD/ROTAX/15 - Inspection of Exhaust Bends

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

Requires owners/operators of Rotax 914 F engines (S/N 4,420.001–4,420.363) fitted with specified Rotax exhaust-bend part numbers to carry out a detailed visual inspection per Rotax Service Bulletin 914‑017R1 every 50 hours TIS and to replace any cracked exhaust bend before further flight. The Civil Aviation Safety Authority (delegate) issued the AD; owners/operators bear inspection and replacement costs. The directive mechanically enforces recurring checks to address detected exhaust-bend cracking.

JSON API

Deep dive

Want the full deep dive?

Zoe can write the in-depth analysis on top of the summary above: how it works, who it affects and what each part actually does.

Current sections

Direct links to the current provisions in AD/ROTAX/15 - Inspection of Exhaust Bends.

AIRWORTHINESS DIRECTIVE

View image in the official source

For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CASR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

View image in the official source

Rotax Piston Engines

AD/ROTAX/15 Inspection of Exhaust Bends

AD/ROTAX/15 Inspection of Exhaust Bends 12/2003

Applicability: Rotax 914 F series engines with Serial Number (S/N) 4,420.001 up to 4,420.363, if equipped with genuine Rotax exhaust bends Part Number (PN) 979420/421/422, 979430/431/432, 979440/441/442, and 979450/451/452.

Requirement: 1. Carry out a detailed visual inspection of the exhaust bends (exhaust tubes between cylinder head and exhaust) in accordance with instructions contained in Rotax Service Bulletin (SB) 914-017R1.

If cracks are detected when carrying out Requirement 1, replace the exhaust bend in accordance with the relevant Maintenance Manual.

Note: Austrian CAA AD 106R1 refers.

Compliance: For Requirement 1: Every 50 hours time-in-service (TIS) from the effective date of this Directive.

For Requirement 2: Before further flight.

This Airworthiness Directive becomes effective on 27 November 2003.

Background: Cracks have been detected on Rotax engine exhaust bends which could have been caused by a number of reasons outlined in the SB relevant to this Directive. The Austrian CAA requires inspection of the exhaust bends at regular intervals.

Signature of Jim Coyne Delegate of the Civil Aviation Safety Authority

Jim Coyne

Delegate of the Civil Aviation Safety Authority 14 October 2003

View image in the official source

The above AD is notified in the Commonwealth of Australia Gazette on 5 November 2003.

Source text

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

AIRWORTHINESS DIRECTIVE AIRWORTHINESS DIRECTIVE

AIRWORTHINESS DIRECTIVE

Rotax Piston Engines

AD/ROTAX/15 Inspection of Exhaust Bends AD/ROTAX/15 Inspection of Exhaust Bends 12/2003

AD/ROTAX/15 Inspection of Exhaust Bends 12/2003

If cracks are detected when carrying out Requirement 1, replace the exhaust bend in accordance with the relevant Maintenance Manual.

Note: Austrian CAA AD 106R1 refers.

Compliance: For Requirement 1: Every 50 hours time-in-service (TIS) from the effective date of this Directive.

For Requirement 2: Before further flight.

This Airworthiness Directive becomes effective on 27 November 2003.

Jim Coyne

Delegate of the Civil Aviation Safety Authority 14 October 2003

The above AD is notified in the Commonwealth of Australia Gazette on 5 November 2003.