AD 2005-20-13

Recurring final rule
Data completeness: 70%

Airworthiness Directives; Boeing Model 727 Airplanes

AD Number
2005-20-13
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2005-21085
FR Citation
70 FR 58002

Applicability

TypeManufacturerModelDetails
aircraft Boeing 727 Airworthiness Directives; Boeing Model 727 Airplanes

Unsafe Condition

Cracks at open tooling holes in the lower lobe frames of body section 43, which could result in cracks in the skin panels and rapid decompression of the airplane.

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

Required Actions

Inspect the lower lobe frames of body section 43 to find open holes between stringers 17L and 17R and record their location. Conduct repetitive high frequency eddy current (HFEC) inspections for cracks of all open holes. Take related investigative and corrective actions if necessary. Optionally, install rivets in all open tooling holes and all unused lining holes to terminate repetitive HFEC inspections.

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

Compliance Time

Within 12 months of the effective date (November 9, 2005).

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Affected Aircraft

All Boeing Model 727 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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