AD 2008-17-15

final rule
Data completeness: 80%

Airworthiness Directives; Boeing Model 737-600, -700, -800, and -900 Series Airplanes

AD Number
2008-17-15
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2008-0621
FR Citation
73 FR 50714

Applicability

TypeManufacturerModelDetails
aircraft Boeing 737-600 Airworthiness Directives; Boeing Model 737-600, -700, -800, and -900 Series Airplanes

Unsafe Condition

The center tank fuel densitometer may overheat and become a potential ignition source inside the center fuel tank, which, in combination with flammable fuel vapors, could result in a center fuel tank explosion and consequent loss of the airplane.

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Required Actions

Install hot short protector (HSP) support brackets and equipment for the fuel quantity indicating system (FQIS) fuel densitometer. Revise the Airworthiness Limitations (AWLs) section of the Instructions for Continued Airworthiness to incorporate AWL No. 28-AWL-07.

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Compliance Time

Within 60 months after the effective date of this AD.

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Affected Aircraft

Boeing Model 737-600, -700, -800, and -900 series airplanes, certificated in any category, as identified in Boeing Alert Service Bulletin 737-28A1221, Revision 1, dated November 9, 2007.

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Source: Official FAA Source ↗

Retrieved: Apr 4, 2026

Rights: U.S. Government Public Domain

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