AD 2025-09-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | SAS | Airworthiness Directives; Airbus SAS Airplanes |
Unsafe Condition
Loss of data synchronization between radio management panels (RMPs) and the audio management unit (AMU) can lead to loss of radio communication, uncommanded changes of transponder and traffic alert and collision avoidance system (TCAS) settings, and activation of standby navigation mode on all RMPs.
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Required Actions
Revising the existing airplane flight manual (AFM) by providing instructions to address dual loss of RMP data synchronization, and revising the master minimum equipment list (MMEL) by removing relief for an inoperative RMP 3.
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Compliance Time
Before further flight
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Affected Aircraft
Airbus SAS Model A330-243, -243F, -841, and -941 airplanes with the digital RMP function installed by modification 207423.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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