AD Amdt-39-10808

final rule
Data completeness: 70%

Airworthiness Directives; Boeing Model 747-100, -200, -300, SP, and SR Series Airplanes

AD Number
Amdt-39-10808
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 97-NM-272-AD
FR Citation
63 FR 52147

Applicability

TypeManufacturerModelDetails
aircraft Boeing 747-100 Airworthiness Directives; Boeing Model 747-100, -200, -300, SP, and SR Series Airplanes

Unsafe Condition

Excessive energy levels in the electrical wiring and probes of the fuel system could be induced by electrical transients, leading to arcing of the FQIS electrical wiring or probes in the fuel tank(s).

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Install shielding and separation of the electrical wiring of the fuel quantity indication system (FQIS).

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Before further flight

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Boeing Model 747-100, -200, -300, SP, and SR series airplanes.

AI-generated summary from the source AD text. Verify against the official source before acting.

Source: Official FAA Source ↗

Retrieved: Apr 6, 2026

Rights: U.S. Government Public Domain

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