AD 98-23-11

final rule
Data completeness: 70%

Airworthiness Directives; McDonnell Douglas Model DC-9-31 Series Airplanes

AD Number
98-23-11
Status
final_rule
Effective Date
Product Category
aircraft
Docket
97-NM-99-AD
FR Citation
(Federal Register: November 12, 1998 (Volume 63, Number 218))

Applicability

TypeManufacturerModelDetails
aircraft The Boeing Company DC-9-31 Airworthiness Directives; McDonnell Douglas Model DC-9-31 Series Airplanes

Unsafe Condition

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

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Required Actions

Conduct a one-time visual inspection to determine if all corners of the forward service door doorjamb have been modified previously. Perform follow-on repetitive inspections, modifications, Low Frequency Eddy Current (LFEC) or X-ray inspections, and repairs as necessary.

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Compliance Time

prior to further flight

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Affected Aircraft

McDonnell Douglas Model DC-9-31 series airplanes

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Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

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