AD Amdt-39-9790

final rule
Data completeness: 70%

Airworthiness Directives; Boeing Model 747-200, -300, and -400 Series Airplanes

AD Number
Amdt-39-9790
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 94-NM-226-AD
FR Citation
61 FR 57291

Applicability

TypeManufacturerModelDetails
aircraft Boeing 747-200 Airworthiness Directives; Boeing Model 747-200, -300, and -400 Series Airplanes

Unsafe Condition

Uncommanded right elevator deflection after takeoff and elevator/control column bumps during landing gear retraction.

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

Required Actions

Modify the left and right inboard elevator servo assemblies and the hydraulic routing of the right inboard elevator power control package (PCP).

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

Affected Aircraft

Boeing Model 747-200, -300, and -400 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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