AD Amdt-39-11198

Recurring final rule
Data completeness: 70%

Airworthiness Directives; Boeing Model 777 Series Airplanes

AD Number
Amdt-39-11198
Status
final_rule
Effective Date
Product Category
engine
Docket
Docket No. 99-NM-116-AD
FR Citation
64 FR 33390

Applicability

TypeManufacturerModelDetails
aircraft Boeing 777 Airworthiness Directives; Boeing Model 777 Series Airplanes

Unsafe Condition

Fatigue cracking of the outboard support assembly of the flaperons, potentially leading to fracture of the flaperon support structure and loss of the flaperon.

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

Required Actions

Conduct repetitive inspections of the upper cutout and lower flange of the outboard support assembly of the flaperons. Perform corrective actions if cracking is detected. Optional terminating action is provided for the repetitive inspections.

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 777 series airplanes with specific serial numbers and configurations as outlined in the AD.

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

This site is not affiliated with or endorsed by the FAA. Always verify with official sources.

View Official Source ↗ Find More ADs for Boeing 777

Related Airworthiness Directives

2011-26-03

final rule

Airworthiness Directives; The Boeing Company Model 777-200, -200LR, -300, and -300ER Series Airplanes

Unsafe Condition: unsafe condition on these products.

Effective: Jan 3, 2012 Category: aircraft

2011-09-15

final rule

Airworthiness Directives; The Boeing Company Model 777-200, -200LR, -300, and -300ER Series Airplanes

Unsafe Condition: could result in a fuel tank explosion and consequent loss of the airplane.

Effective: Jun 6, 2011 Category: aircraft

2011-09-11 Recurring

final rule

Airworthiness Directives; The Boeing Company Model 777-200 and -300 Series Airplanes Equipped With Pratt and Whitney Engines

Unsafe Condition: We are adopting a new airworthiness directive (AD) for the products listed above. This AD requires repetitive inspections for hydraulic fluid contamination of the interior of the strut disconnect a...

Effective: Jun 6, 2011 Category: engine

View all Boeing ADs →