# SDR CHQA20120212047

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 12, 2012
- Submitted: February 14, 2012
- Operation: Air carrier
- Aircraft: N578RP
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145865
- Aircraft time: 17,094 hours, 14,978 cycles
- Engine: Allsn AE3007A
- Engine time: 17,251 hours, 14,340 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 100865
- Part serial: C01796
- Condition: Discharged
- Location: Cabin
- Part time: 15,315 hours, 14,926 cycles
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CHQA20120212047

## Discrepancy

CREW REPORTED THAT UPON ARRIVING AT THE AIRCRAFT, THE EMERGENCY LIGHTS HAD BEEN LEFT ON OVERNIGHT.  MANY OF THE LIGHTS WERE DIM AND OTHER WERE INOPERATIVE.  MAINTENANCE REPLACED ALL FOUR EMERGENCY BATTERIES.  OPERATIONAL CHECKS WERE GOOD WITH NO FURTHER DEFECTS NOTED.

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