AD Amdt-39-11110

Recurring final rule
Data completeness: 70%

Airworthiness Directives; McDonnell Douglas Model DC-9 and C-9 (Military) Series Airplanes

AD Number
Amdt-39-11110
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 98-NM-110-AD
FR Citation
64 FR 16805

Applicability

TypeManufacturerModelDetails
aircraft McDonnell Douglas Various Airworthiness Directives; McDonnell Douglas Model DC-9 and C-9 (Military) Series Airplanes

Unsafe Condition

Fatigue cracking of fuselage frames and longerons 16R and 17R above the forward lower cargo door, which could result in reduced structural integrity of the airplane.

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

Required Actions

Inspect fuselage frames and longerons 16R and 17R for fatigue cracking; repair if necessary; modify fuselage frames and longerons if necessary; and conduct follow-on repetitive inspections to detect fatigue cracking of the skin adjacent to the modification.

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

Affected Aircraft

McDonnell Douglas Model DC-9 and C-9 (military) 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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