Boeing 737 Series AeroplanesBoeing 737 Series Aeroplanes

Boeing 737 Series Aeroplanes

AD/B737/234 (continued)

This Airworthiness Directive becomes effective on 20 January 2005.

Background: This Directive requires a general visual inspection for sealant at the interface between the diagonal brace fitting and the aft bulkhead and at the four bolts common to the interface. It also requires applying sealant if none is present or if it is not continuous. This action is necessary to prevent flammable fluid in the upper or rear pylon areas from leaking past unsealed areas and onto a hot engine nozzle, which could result in ignition of the fluid, causing an undetected and uncontrollable fire to spread into the engine struts. This action is intended to address the identified unsafe condition.

Signature of James Coyne, Delegate of the Civil Aviation Safety Authority.

James Coyne

Delegate of the Civil Aviation Safety Authority 1 December 2004

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The above AD is notified in the Commonwealth of Australia Gazette on 22 December 2004.