AD 88-22-11 R1
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 737-100 Series | Airworthiness Directives; BOEING Model 737 Series Airplanes |
| aircraft | The Boeing Company | 737-200 Series | Airworthiness Directives; BOEING Model 737 Series Airplanes |
| aircraft | The Boeing Company | 737-200C Series | Airworthiness Directives; BOEING Model 737 Series Airplanes |
| aircraft | The Boeing Company | 737-300 Series | Airworthiness Directives; BOEING Model 737 Series Airplanes |
| aircraft | The Boeing Company | 737-400 Series | Airworthiness Directives; BOEING Model 737 Series Airplanes |
| aircraft | The Boeing Company | 737-500 Series | Airworthiness Directives; BOEING Model 737 Series Airplanes |
| aircraft | The Boeing Company | 737-600 Series | Airworthiness Directives; BOEING Model 737 Series Airplanes |
| aircraft | The Boeing Company | 737-700 Series | Airworthiness Directives; BOEING Model 737 Series Airplanes |
| aircraft | The Boeing Company | 737-800 Series | Airworthiness Directives; BOEING Model 737 Series Airplanes |
Unsafe Condition
Cracks along the upper rivet line at the fuselage lap joints and along both rivet lines at stringer S-17 could lead to rapid decompression of the airplane.
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Required Actions
Inspect for cracks using high frequency eddy current inspection and detailed external visual inspection. Repair cracks, corrosion, and delamination prior to further flight. Replace fasteners with standard protruding head solid fasteners within specified cycles. Perform recurring inspections at intervals not exceeding 4,500 landings or 15 months, whichever comes first.
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Compliance Time
Prior to the accumulation of 40,000 landings or within 10 calendar days after November 21, 1988, whichever occurs later. Initial inspections must be done within 500 landings after specified dates or prior to 40,000/60,000 landings, with recurring intervals as specified.
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Affected Aircraft
Boeing Model 737 series airplanes, line number 001 through 519, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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