Commonwealth legislation

AD/HU 369/60 Amdt 1 - Oil Pressure and Torque Pressure Firewall Fitting Checks

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Commonwealth

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legislative instrument

Plain English Summary

3/10 complexity

This Airworthiness Directive requires owners/operators of all McDonnell Douglas (Hughes) and Kawasaki 369 series helicopters to inspect and, if needed, correct oil-pressure and torque-pressure tube assemblies at their firewall attachments per the listed McDonnell Douglas service notices. Inspections are due within 100 flight hours after 31 Dec 1987, whenever P/N 369A8010 lines are removed/reinstalled or when leaks are seen. The checks prevent tube pull-out and potential engine oil loss; owners/operators pay for work.

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AD/HU 369/60 Amdt 1 - Oil Pressure and Torque Pressure Firewall Fitting Checks

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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McDonnell Douglas (Hughes) and Kawasaki 369 Series Helicopters

AD/HU 369/60

Amdt 1

Applicability: All models.

Oil Pressure and Torque Pressure Firewall Fitting Checks

13/87

Requirement: Action in accordance with McDonnell Douglas SIN No. HN-209, DN-149, EN-37 and FN-26.

Compliance: 1. Unless already accomplished, within 100 hours time in service after 31 December 1987; and

2. Any time the P/N 369A8010 oil lines and related firewall fittings are removed and reinstalled or replaced; and

3. Any time there are indications of oil leaks around the P/N 369A8010 oil lines at the firewall fittings.

Background: Incorrectly swaged oil pressure and torque pressure tube assemblies have been found attached to the firewall fittings. These tubes can pull out of the fitting causing loss of engine oil. Amendment 1 to this Directive extends compliance to include all 369 series helicopters.

Source text

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

1 AD/HU 369/60 Amdt 1 - Oil Pressure and Torque Pressure Firewall Fitting Checks