Commonwealth legislation

AD/DHC-8/14 - Oxygen Line Chafing

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legislative instrument

Plain English Summary

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This airworthiness directive requires operators of Bombardier (De Havilland) DHC‑8 Series 100 and 300 aeroplanes (serial nos. 003–271) to inspect for and repair a cable/oxygen‑line chafe hazard and to apply protective tape/wrap in accordance with Boeing Canada De Havilland Alert Service Bulletin A8‑35‑5 Rev A.

Inspections/repairs must be done by 25 April 1991 and the tape/wrap fitted within 500 hours TIS after 13 June 1991; operators fund and schedule the work to prevent possible arcing and an oxygen‑fed fire.

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AD/DHC-8/14 - Oxygen Line Chafing

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Bombardier (Boeing Canada/De Havilland) DHC-8 Series Aeroplanes

AD/DHC-8/14 Oxygen Line Chafing 6/91 TX

Applicability: All models DHC-8 100 and 300 series aircraft Serial No’s 003 through 271.

Requirement: 1. Inspect and repair in accordance with Boeing Canada de Havilland Division Alert SB A8-35-5 Rev “A”.

Tape and wrap in accordance with Boeing Canada de Havilland Division Alert SB A8-35-5 Rev “A”.

Note: Transport Canada Emergency AD CF-91-97 also refers.

Compliance: 1. Prior to 25 April 1991.

Within 500 hours time in service after 13 June 1991.

Background: There has been an occurrence of an electrical cable chafing an oxygen line beneath the crew compartment floor and rupturing the line. Action in accordance with this AD is necessary to prevent a severe oxygen-fed fire due to possible arcing between electrical feeder cable and crew oxygen line.

Note: Boeing Canada advises that all operators have been notified.

Source text

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

1 AD/DHC-8/14 - Oxygen Line Chafing