# SDR USAA2011092600031

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 23, 2011
- Submitted: September 26, 2011
- Operation: Air carrier
- Aircraft: N406US
- Make and model: Boeing 737401
- Aircraft serial: 23876
- Aircraft time: 63,173 hours, 42,588 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Socket
- Condition: Corroded
- Location: Exterior
- Stage of operation: IN
- 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/USAA2011092600031

## Discrepancy

MAINTENANCE REPORTED THE EXTERIOR EMERGENCY LIGHT INOPERATIVE AT L1 DOOR.  MAINTENANCE CLEANED CORROSION FROM L1 DOOR EMERGENCY LIGHT SOCKET.  SYSTEM CHECKS NORMAL.

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