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Wed, Dec 16, 2009

AD: Boeing

AD NUMBER: 2008-04-10 R1

MANUFACTURER: The Boeing Company Model 727 Airplanes
SUBJECT: Airworthiness Directive 2008-04-10 R1

SUMMARY: The FAA is revising an existing airworthiness directive (AD), which applies to all The Boeing Company Model 727 airplanes. That AD currently requires revising the FAA-approved maintenance program by incorporating new airworthiness limitations (AWLs) for fuel tank systems to satisfy Special Federal Aviation Regulation No. 88 requirements. That AD also requires an initial inspection to phase in a certain repetitive AWL inspection, and repair if necessary. This AD clarifies the intended effect of the AD on spare and on-airplane fuel tank system components. This AD results from a design review of the fuel tank systems. We are issuing this AD to prevent the potential for ignition sources inside fuel tanks caused by latent failures, alterations, repairs, or maintenance actions, which, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane.

FMI: http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgAD.nsf/0/DDB6CDFEB2D0195D8625768D005086F2?OpenDocument

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