What was found
UPPER DECK EXIT DOOR OVERHEAD AFT EMERGENCY LIGHT POWER SUPPLY M5057, FOUND WITH NO VOLTAGE OUTPUT DURING EMERGENCY LIGHT OPS TEST. EMERGENCY LIGHT POWER SUPPLY FUSE REPLACED & OPS TESTED NORMAL.
- Difficulty date
- October 4, 2013
- Submitted
- October 28, 2013
- Operation
- Air carrier
- Aircraft
- N127UA
- Make and model
- Boeing 747422
- Aircraft serial
- 28813
- Aircraft time
- 56,281 hours, 6,537 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Fuse
- Part number
- FU305
- Condition
- Failed
- Location
- Emergency Light
- 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.