AD 2025-06-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Dassault | Aviation | Airworthiness Directives; Dassault Aviation Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Dassault Aviation Airplanes |
Unsafe Condition
occurrences were reported of swelling of the lithium-polymer internal and external batteries of CMA-1310 EDUs having part number (P/N) 100-604073-000, with a mod-status between 2 and 6 (inclusive). The swelling occurs due to a high inrush charge and discharge current stress condition applied on a deeply discharged lithium-polymer battery.
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Required Actions
modifying certain EDUs and to prohibit the installation of affected parts, as specified in EASA AD 2024-0072. The modification includes a visual inspection of the external removable battery for defects (swelling) and replacement of any defective external removable battery with a new external removable battery, and updating the BIOS/EC firmware.
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Compliance Time
Within 50 flight hours
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Affected Aircraft
Dassault Aviation Model FALCON 7X, FALCON 900EX, and FALCON 2000EX airplanes with CMA-1310 EDUs having P/N 100-604073-000 and with current mod-status between 2 and 6 (inclusive)
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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