# SDR VNAA2009102800010

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 23, 2009
- Submitted: October 29, 2009
- Operation: Air carrier
- Aircraft: [N720PS](https://openairdocs.org/aircraft/N720PS), registered now
- Make and model: Cndair CL6002C10
- Aircraft serial: 10178
- Aircraft time: 11,873 hours, 11,826 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Epsu
- Part number: 110049
- Part serial: 20621
- Condition: Discharged
- Location: Cabin
- Part time: 11,873 hours
- Stage of operation: UK
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/VNAA2009102800010

## Discrepancy

CREW REPORTED IN SRQ THE LEFT CABIN LOWER EXIT SIGN INOP.  MAINTENANCE TESTED USING THE AIRCRAFT MAINTENANCE MANUAL AND FOUND NR 4 EPSU BAD.  MAINTENANCE REMOVED AND REPLACED NR 4 EPSU.  MAINTENANCE CHECKED THE AIRCRAFT USING THE AIRCRAFT MAINTENANCE MANUAL AND RETURNED THE AIRCRAFT TO SERVICE.

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