AD 79-18-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Batteries | Lithium Sulfur Dioxide Batteries | Airworthiness Directives; LITHIUM SULFUR DIOXIDE BATTERIES: Applies to all Lithium Sulfur Dioxide (LiSO2) Batteries |
Unsafe Condition
LiSO2 batteries may experience fire, venting violently, explosion, corrosion, or leakage of gas.
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Required Actions
Remove LiSO2 batteries not meeting TSO-C97 requirements before further flight. Remove ELTs with non-compliant LiSO2 batteries before further flight. Install compliant LiSO2 batteries or alternative power sources by specified dates.
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Compliance Time
before further flight
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Affected Aircraft
Lithium Sulfur Dioxide (LiSO2) batteries installed in aircraft or equipment used in aircraft, including specific models from Communications Components Corporation, Cessna Aircraft Co., Dorne and Margolin, Inc., Garrett Manufacturing Ltd., Leigh Systems, Inc., Pathfinder Corporation, Pointer Inc., and others listed in the AD.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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