# SDR DALA12017066302

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 28, 2012
- Submitted: December 26, 2012
- Operation: Air carrier
- Aircraft: N662US
- Make and model: Boeing 747451
- Aircraft serial: 23720
- Aircraft time: 97,765 hours, 12,476 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Light
- Condition: Inoperative
- Location: Cabin
- 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/DALA12017066302

## Discrepancy

LT UPPER DECK EMERGENCY DOOR (BATTERY OK) LIGHT INOPERATIVE.  SWAPPED M7037 WITH M7038, RETESTED BOTH BATTERY LIGHTS, BOTH TESTED GOOD.

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