AD Amdt-39-11224

Recurring final rule
Data completeness: 70%

Series Airplanes, and C-9 (Military) Airplanes

AD Number
Amdt-39-11224
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 97-NM-49-AD
FR Citation
64 FR 37838

Applicability

TypeManufacturerModelDetails
aircraft McDonnell Douglas DC-9-10 Series Airplanes, and C-9 (Military) Airplanes

Unsafe Condition

Fatigue cracks found in the fuselage skin and doubler at the corners of the aft lower cargo doorjamb, which could result in rapid decompression of the fuselage and reduced structural integrity.

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

Required Actions

Conduct a one-time visual inspection to determine if all corners of the aft lower cargo doorjamb have been previously modified. Perform low frequency eddy current inspections to detect cracks of the fuselage skin and doubler at all corners of the aft lower cargo doorjamb. Conduct various follow-on repetitive inspections and modifications, if necessary.

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

McDonnell Douglas Model DC-9-10, -20, -30, -40, and -50 series airplanes, and C-9 (military) 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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