AD Amdt-39-10949

Recurring final rule
Data completeness: 70%

Airworthiness Directives; McDonnell Douglas Model DC-9-10, -20, - 30, -40, and -50 Series Airplanes, and C-9 (Military) Airplanes

AD Number
Amdt-39-10949
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 98-NM-06-AD
FR Citation
63 FR 70005

Applicability

TypeManufacturerModelDetails
aircraft McDonnell Douglas DC-9-10 Airworthiness Directives; McDonnell Douglas Model DC-9-10, -20, - 30, -40, and -50 Series Airplanes, and C-9 (Military) Airplanes

Unsafe Condition

Fatigue cracks found in the fuselage skin and doubler at the corners and doorstops of the forward passenger door, which could result in rapid decompression of the fuselage and consequent reduced structural integrity of the airplane.

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 the doorstops and corners of the doorjamb of the forward passenger door have been modified. Perform various follow-on repetitive inspections. Modify the doorjamb if necessary, in accordance with a method approved by the FAA.

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

Compliance Time

Within 3,575 landings or 3 years after the effective date of the AD, whichever occurs later.

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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View Official Source ↗ Find More ADs for McDonnell Douglas DC-9-10

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