What was found
FLT 816 POP - JFK (ON GROUND) MAINT CHECK WAS PERFORMED ON EMERGENCY LIGHTS AND TEST FAILED. REMOVED AND REPLACED EMERGENCY POWER SUPPLY UNIT 13WL AND IT'S ASSOCIATED BATTERY PER AMM 33-51-38. OPS CHECK NORMAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLT 816 POP - JFK (ON GROUND) MAINT CHECK WAS PERFORMED ON EMERGENCY LIGHTS AND TEST FAILED. REMOVED AND REPLACED EMERGENCY POWER SUPPLY UNIT 13WL AND IT'S ASSOCIATED BATTERY PER AMM 33-51-38. OPS CHECK NORMAL.