AD Amdt-39-10045

final rule
Data completeness: 70%

Airworthiness Directives; Boeing Model 747 Series Airplanes

AD Number
Amdt-39-10045
Status
final_rule
Effective Date
Product Category
engine
Docket
Docket No. 97-NM-70-AD
FR Citation
62 FR 31331

Applicability

TypeManufacturerModelDetails
aircraft Boeing 747 Airworthiness Directives; Boeing Model 747 Series Airplanes

Unsafe Condition

Cracking, corrosion, and fracturing of the lower horizontal clevis of the strut midspar fittings and cracking of the upper horizontal clevis legs could result in drooping of the strut at the strut-to-wing interface and consequent separation of the engine and strut from the airplane.

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

Required Actions

Inspect for cracking, corrosion, and fracturing of the lower horizontal clevis and cracking of the upper horizontal clevis legs. Replace discrepant parts with new parts or rework as necessary. Remove broken sealant from clevis and fasteners and perform follow-on actions. Inspections of the upper horizontal clevis are added, and certain optional terminating actions are removed.

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

Affected Aircraft

Boeing Model 747 series airplanes subject to the superseded ADs requiring inspections of the lower horizontal clevis and upper fastener holes.

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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