What was found
LEFT AFT EMERGENCY BATTERY PACK M01673 FAILED A CAPACITY CHECK. R & R CABIN EMERGENCY BATTERY PACK IAW AMM 33-51-06.
- Difficulty date
- April 15, 2026
- Submitted
- April 17, 2026
- Operation
- Air carrier
- Aircraft
- N457WN
- Make and model
- Boeing 7377H4
- Aircraft serial
- 33856
- Aircraft time
- 72,246 hours, 43,512 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- Condition
- Failed
- Location
- Zn 200 Fus Top
- 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.