# SDR DALA1124016309

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 2, 2011
- Submitted: April 5, 2011
- Operation: Air carrier
- Aircraft: N669US
- Make and model: Boeing 747451
- Aircraft serial: 24224
- Aircraft time: 89,072 hours, 10,928 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/DALA1124016309

## Discrepancy

DURING A MAINTENANCE VISIT, THE EMERGENCY DOOR 4L DOOR MOUNT LIGHT WAS FOUND TO BE INOPERATIVE.  MAINTENANCE REPLACED THE DOOR MOUNT LIGHT.  SYSTEM OPERATION WAS NORMAL AFTER THE DOOR MOUNT LIGHT WAS REPLACED.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.