Commonwealth legislation

AD/OXY/12 - PELS Model 4566M37B Crewmember Protective Breathing Equipment

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legislative instrument

Plain English Summary

3/10 complexity

Mechanically, this Airworthiness Directive requires operators to remove from service specific Essex PELS model 4566M37B crewmember Protective Breathing Equipment units (serial numbers listed in Essex Service Bulletin 001 Revision 1) by 31 December 1994. CASA issues the directive; aircraft operators must trace affected units across their fleets and bear the cost and logistics of removal and replacement.

The manufacturer advised the FAA that some units may have a defective adhesive bond between the hood shell and neck seal that could cause leakage and reduce protection; removing the listed units is intended to eliminate that risk.

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AD/OXY/12 - PELS Model 4566M37B Crewmember Protective Breathing Equipment

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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source Oxygen Systems

AD/OXY/12 PELS Model 4566M37B Crewmember

Protective Breathing Equipment

Applicability: Essex PB&R Corporation (formerly E.I. Du Pont de Nemours and Company Incorporated) PELS® model 4566M37B crewmember Protective Breathing

11/93

Equipment (PBE) units, serial numbers as listed in Essex PB&R Corporation Service Bulletin 001 Revision 1 dated 3 October 1991, manufactured between 29 March 1989 and 9 May 1989. The PBE units may be installed on but not limited to transport category aircraft manufactured by Boeing, McDonnell Douglas, Airbus and Lockheed.

Requirement: Remove from service, in accordance with Essex PB&R Corporation Service Bulletin 001 Revision 1 dated 3 October 1991.

Note: FAA AD 93-14-12 Amendment 39-8636 refers.

Compliance: Prior to 31 December 1994.

Background: The manufacturer has advised the FAA that certain PBE units contain a potentially defective adhesive bond between the hood shell and neck seal which could compromise user protection.

Compliance with this Directive alleviates the possibility of crewmembers being unable to combat an aircraft fire due to leakage of the PBE neck seal.

Source text

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