# SDR AALA20131218010

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 18, 2013
- Submitted: December 30, 2013
- Operation: Air carrier
- Aircraft: [N978TW](https://openairdocs.org/aircraft/N978TW), registered now
- Make and model: Doug DC-9-83
- Registry model: [Doug DC-9-83](https://openairdocs.org/model/douglas-dc-9-83) (OpenAirDocs)
- Aircraft serial: 53628
- Aircraft time: 41,016 hours, 19,939 cycles
- System (JASC): [2432 · Battery/Charger System](https://openairdocs.org/jasc/2432)
- Part: Charger
- Condition: Faulty
- Location: Main Battery
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20131218010

## Discrepancy

SJC CREW REPORTED EMERGENCY AC BUSS RELAY CIRCUIT BREAKER K7 POPPED IN FLIGHT.  EMERGENCY DECLARED FLIGHT RETURNED SJC LANDED WITHOUT INCIDENT.  AIRCRAFT REMOVED FROM SERVICE.  REPLACED BATTERY CHARGER & BOTH SHIPS BATTERIES.  SYSTEM GND CHECKED NORMAL OPERATION CLOSED.

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