AD 2025-11-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | SAS | Airworthiness Directives; Airbus SAS Airplanes |
Unsafe Condition
Occurrences of lost synchronization between radio management panels (RMPs) were reported, and these occurrences led to loss of communications means (RMP data synchronization and very high frequency (VHF) communications) on the digital radio and audio integrating management system (DRAIMS). This condition, if not corrected, could result in total loss of radio communications, including loss of transponder functionality and standby navigation.
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Required Actions
Revising the existing airplane flight manual (AFM) by providing instructions to address dual loss of RMP data synchronization.
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Compliance Time
Within 7 days
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Affected Aircraft
Airbus SAS Model A319-151N, -153N, -171N, and -173N airplanes; A320-251N, -252N, -253N, -271N, -272N, and -273N airplanes; A321-251N, -251NX, -252N, -252NX, -253N, -253NX, -253NY, -271N, -271NX, -272N, and -272NX airplanes having Airbus modification 162344 or 168460, except those having Airbus modification 165670 installed in production.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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