AD 2015-16-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
Loss of cabin altitude warning, which could delay flightcrew recognition of a lack of cabin pressurization, and could result in incapacitation of the flightcrew due to hypoxia, and consequent loss of control of the airplane.
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Required Actions
Install a redundant cabin altitude pressure switch, replace the aural warning module (AWM) with a new or reworked AWM, and change certain wire bundles or connect certain previously capped and stowed wires as necessary. For certain airplanes, also modify instrument panels, install light assemblies, modify wire bundles, and install a new circuit breaker as necessary.
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Compliance Time
Within 12 months of the effective date (September 15, 2015).
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Affected Aircraft
The Boeing Company Model 737 airplanes, as specified in the referenced service bulletins and AD 2012-19-11.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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