What was found
**SDR FILED OPEN** EMER LT BAT 1 LO MSG ON TEST. C/W.
- Difficulty date
- May 20, 2025
- Submitted
- May 20, 2025
- Operation
- Air carrier
- Aircraft
- N278UP
- Make and model
- Doug MD11F
- Aircraft serial
- 48577
- Aircraft time
- 79,723 hours, 17,027 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Condition
- No Test
- Location
- Zone 200
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- L, J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.