SDR AALA202303132932

Service difficulty report · Battery Pack · Boeing 777323ER

Difficulty date: March 11, 2023
Submitted: March 13, 2023
Operation: Air carrier
Aircraft: N723AN
Make and model: Boeing 777323ER
Aircraft serial: 33125
Aircraft time: 39,121 hours, 4,600 cycles
System (JASC): 3350 · Emergency Lighting
Part: Battery Pack
Part number: D71701100
Condition: No Test
Location: Zone 200 - Fuse
Stage of operation: IN
How discovered: C
Nature of condition: O
Precautionary procedure: K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

AIRCRAFT WAS GROUNDED: MULTIPLE EMERGENCY LIGHT BATTERY PACKS FAIL TO TEST. REMOVED AND REPLACED 13 (AALA202303131232), (AALA202303132932), (AALA202303139167), (AALA202303139561), (AALA202303131891), (AALA202303135783), (AALA202303135712), (AALA202303137201), (AALA202303134207) , (AALA202303132633), (AALA202303132455), (AALA202303134917), (AALA202303130105) AFFECTED EMERGENCY LIGHTS PACKS PER AMM 33-51-06.