AD Amdt-39-11212

Recurring final rule
Data completeness: 70%

Airworthiness Directives; Boeing Model 747-300 and -400 Series Airplanes

AD Number
Amdt-39-11212
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 99-NM-45-AD
FR Citation
64 FR 34707

Applicability

TypeManufacturerModelDetails
aircraft Boeing 747-300 and -400 Airworthiness Directives; Boeing Model 747-300 and -400 Series Airplanes

Unsafe Condition

Cracking in the area surrounding the fastener holes and broken or missing fasteners on the E-42 satellite communications (SATCOM) rack and its supporting fuselage structure could result in the SATCOM equipment falling from the rack, loss of SATCOM capabilities, injury to passengers, and reduced controllability of the airplane.

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

Required Actions

Inspect the E-42 SATCOM rack and fuselage structure for cracking and broken or missing fasteners. Perform corrective actions as necessary to repair detected issues.

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

Compliance Time

Within 50 flight hours after the effective date of the AD.

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

Affected Aircraft

Boeing Model 747-300 and -400 series airplanes with the E-42 satellite communications (SATCOM) rack installed.

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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