What was found
WIRELESS EMERGENCY LIGHTING SYSTEM CONTROL UNIT BATTERY - REMOVAL PREPARE FOR THE REMOVAL - POS #12 PER JOB CARD INSTRUCTIONS REMOVED AND REPLACED WBU POSITION #12 IAW AMM 33-51-07. OPS CHECK NORMAL, NO FAULTS NOTED
- Difficulty date
- December 27, 2024
- Submitted
- January 2, 2025
- Operation
- Air carrier
- Aircraft
- N24979
- Make and model
- Boeing 7879
- Aircraft serial
- 66141
- Aircraft time
- 22,223 hours, 2,199 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- 100260201
- Part serial
- ST20010874
- Condition
- Failed
- Location
- Zone 200
- Part time
- 22,185 hours, 2,195 cycles
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- L
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.