A-14-032
NTSB Safety Recommendation — Aviation
Recommendation text
TO THE FEDERAL AVIATION ADMINISTRATION: Develop abuse tests that subject a single cell within a permanently installed, rechargeable lithium-ion battery to thermal runaway and demonstrate that the battery installation mitigates all hazardous effects of propagation to other cells and the release of electrolyte, fire, or explosive debris outside the battery case. The tests should replicate the battery installation on the aircraft and be conducted under conditions that produce the most severe outcome.
In plain language (FlightFinder summary)
The Federal Aviation Administration is asked to develop abuse tests that trigger thermal runaway in a single cell of a permanently installed lithium-ion battery. The tests must demonstrate that the battery installation prevents hazardous effects like fire, explosive debris, or electrolyte release from spreading to other cells or escaping the battery case. Testing should replicate the aircraft installation and be conducted under the most severe conditions.
This plain-language summary is written by FlightFinder to explain the recommendation above. It is not the official wording — the verbatim NTSB text is quoted above.
Details
| Status | Closed - Acceptable Action |
|---|---|
| Mode | Aviation |
| Closed | Nov 15, 2018 |
| NTSB number | DCA13IA037 |
| Addressees | FAA |
External links
NTSB safety recommendations are advisory; addressees are not legally required to adopt them. Source: NTSB CAROL (public domain).