# SDR USAASB02128

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 29, 2002
- Submitted: July 31, 2002
- Operation: Air carrier
- Aircraft: N425US
- Make and model: Boeing 737401
- Aircraft serial: 23992
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Charger
- Part number: 20121
- Condition: Inoperative
- Location: Cabin
- Stage of operation: CR
- 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/USAASB02128

## Discrepancy

CLT - PILOT REPORTED THAT THE EMERGENCY EXIT LIGHTS FLASH OFF AND ON DURING FLIGHT.  LIGHTS STOP FLASHING WHEN CYCLED ON, OFF AND BACK TO ARMED POSITION.  MAINTENANCE REMOVED AND REPLACED THE AFT LEFT BATTERY CHARGER ASSEMBLY AND BATTERY PACK.  SYSTEM OPERATIONALLY CHECKS GOOD PER MM 33-51-02.  (M)

---
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.