AD 2011-24-12

Recurring final rule
Data completeness: 70%

Airworthiness Directives; The Boeing Company Model 737-200, -200C, -300, -400, and -500 Series Airplanes

AD Number
2011-24-12
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2011-0914
FR Citation
76 FR 74667

Applicability

TypeManufacturerModelDetails
aircraft Boeing Company Model 737-200 Airworthiness Directives; The Boeing Company Model 737-200, -200C, -300, -400, and -500 Series Airplanes

Unsafe Condition

Fatigue cracking of the fuselage skin panels at the chem-milled steps, which could result in sudden fracture and failure of the fuselage skin panels, and consequent rapid decompression of the airplane.

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

Required Actions

Conduct external non-destructive inspections (NDI) to detect cracks in the fuselage skin along the chem-mill steps at stringers S-1 and S-2 right, between station (STA) 827 and STA 847. Repair if necessary. Extend inspections to additional fuselage crown skin locations as specified. Reduce inspection thresholds for certain airplanes and extend repetitive inspection intervals as outlined in the AD.

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

Compliance Time

Within the compliance times specified in the AD, unless already done.

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

Affected Aircraft

The Boeing Company Model 737-200, -200C, -300, -400, and -500 series airplanes, certificated in any category.

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 Boeing Company Model 737-200

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