# SDR 2002UALA00115

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 15, 2002
- Submitted: February 5, 2002
- Operation: Air carrier
- Aircraft: [N121UA](https://openairdocs.org/aircraft/N121UA), registered now
- Make and model: Boeing 747422
- Aircraft serial: 29167
- Aircraft time: 12,582 hours, 1,501 cycles
- Engine: Pwa PW4056
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Socket
- Condition: Corroded
- Location: Cabin
- Stage of operation: NR
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2002UALA00115

## Discrepancy

EXTERIOR EMERGENCY LIGHT OVERWING RIGHT HAND SIDE THIRD ASSEMBLY AFT HAS FORWARD BULB INOP.  REMOVED CORROSION INSIDE LAMP SOCKET, OPERATION CHECKS GOOD.

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