AD 2017-10-21

Recurring final rule
Data completeness: 80%

Airworthiness Directives; The Boeing Company Airplanes

AD Number
2017-10-21
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2016-8848
FR Citation
82 FR 24025

Applicability

TypeManufacturerModelDetails
aircraft Boeing Company Airworthiness Directives; The Boeing Company Airplanes

Unsafe Condition

The fuselage skin is subject to widespread fatigue damage (WFD), which could lead to cracks at the lap joint skin that could link up and result in rapid decompression and loss of structural integrity of the airplane.

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

Required Actions

Modify the lap joint and perform repetitive inspections for cracking of the skin at critical fastener rows. Take corrective actions if necessary.

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

Compliance Time

Within 12 months of the effective date (June 29, 2017).

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

Affected Aircraft

The Boeing Company Model 737-300, -400, and -500 series airplanes, certificated in any category, as identified in Boeing Alert Service Bulletin 737-53A1343, dated March 25, 2016; except for Group 5 airplanes identified in the same bulletin.

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

Source: Official FAA Source ↗

Retrieved: Apr 4, 2026

Rights: U.S. Government Public Domain

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