What was found
EMERGENCY POWER TEST FAIL DURING PREFLIGHT FOUND AMMETER NEGATIVE C/B B1-1004 OPEN WHEN CLOSED. R&R PERF SWPM 20-60. OPS CHECK NORMAL. RETURN TO SERVICE TEST OF EPCU WAS NORMAL PER AMM 24-08-01.
- Difficulty date
- March 12, 2025
- Submitted
- March 12, 2025
- Operation
- Air carrier
- Aircraft
- N263UP
- Make and model
- Doug MD11F
- Aircraft serial
- 48782
- Aircraft time
- 100,337 hours, 20,466 cycles
- System (JASC)
- 2460 · DC Power Distribution System
- Part
- Power Supply
- Condition
- No Test
- Location
- Zone 200
- 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.