AD 2019-09-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
misleading air data due to the pitot heat switch not always being set to ON, which could result in loss of crew situational awareness and could ultimately result in the inability to maintain continued safe flight and landing.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
replacement of pitot anti-icing system components, installation of a junction box and wiring provisions, repetitive testing of the anti-icing system, and applicable on-condition actions.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 24 months
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Affected Aircraft
The Boeing Company Model 737-100, -200, -200C, -300, -400, and -500 series airplanes.
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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