What was found
OVERWING EMERGENCY LIGHTS, RT, TWO UPPER LIGHT ASSY, TWO BULBS PER ASSY INOP. REPLACED FUSE ON POWER SUPPLY M7920 FOR OUTPUT PIN 15. REF WDM 3 3-51-41. REF AMM 33-51-04. OPS CK GOOD REF AMM 33-51-00.
- Difficulty date
- June 9, 2017
- Submitted
- June 10, 2017
- Operation
- Air carrier
- Aircraft
- N121UA
- Make and model
- Boeing 747422
- Aircraft serial
- 29167
- Aircraft time
- 73,241 hours, 8,243 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Fuse
- Condition
- Faulty
- Location
- Cabin
- 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.