What was found
WHILE DOING EMERGENCY LIGHT OPS CHECK DISCOVERED AFT EMERGENCY LIGHT SIGN INOP. GROUNDED - YES. REPLACED M1673 BATTERY PACK PER B737-900 AMM 33-51-06 PG 201. EMERGENCY LIGHTS CHECKED GOOD.
- Difficulty date
- December 29, 2021
- Submitted
- January 4, 2022
- Operation
- Air carrier
- Aircraft
- N453AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36354
- Aircraft time
- 30,000 hours, 9,528 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- ADD71701100
- Condition
- Discharged
- Location
- Aft Cabin
- 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.