What was found
FLT#391, BOS-TPA. 'EMERG LIGHT BATTERY FIN10WL FAILED TEST; REMOVED AND REPLACED EMERG LIGHT BATTERY 10WL IAW AMM 33-51-38.'
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLT#391, BOS-TPA. 'EMERG LIGHT BATTERY FIN10WL FAILED TEST; REMOVED AND REPLACED EMERG LIGHT BATTERY 10WL IAW AMM 33-51-38.'