AD 2019-18-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
An undetected unlocked thrust reverser upper locking actuator in flight significantly increases the likelihood of an in-flight deployment of the thrust reverser and consequent loss of airplane control.
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Required Actions
Revising the existing maintenance or inspection program to remove certain text from all locations in the existing maintenance and inspection program that instructs the maintainers to remove material from or grind or trim the sensor target of the thrust reverser upper locking actuator. For Model 737-600, -700, -700C, -800, -900, and -900ER series (737 NG) airplanes, this AD also requires repetitive integrity tests of the thrust reverser upper locking actuator.
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Compliance Time
Within 30 days of the effective date of this AD
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Affected Aircraft
All The Boeing Company Model 737 series airplanes, excluding Model 737-100, -200, -200C, -300, -400, and -500 series airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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