AD 2019-22-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
Cracking in the STA 663.75 frame fitting outboard chords and failsafe straps around eight fasteners adjacent to the stringer S-18A straps could result in failure of a Principal Structural Element (PSE) to sustain limit load, which could adversely affect the structural integrity of the airplane and result in loss of control of the airplane.
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Required Actions
This AD requires repetitive inspections for cracking of the left- and right-hand side outboard chords of the STA 663.75 frame fittings and failsafe straps around eight fasteners adjacent to the stringer S-18A straps. This AD also requires repair of all cracking using a method approved by the FAA or The Boeing Company Organization Designation Authorization (ODA).
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Compliance Time
Before further flight
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Affected Aircraft
The Boeing Company Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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