# SDR HALA9900234

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 20, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N122AA](https://openairdocs.org/aircraft/N122AA), registered now
- Make and model: Doug DC-10-10
- Registry model: [Doug DC-10-10](https://openairdocs.org/model/mcdonnell-douglas-dc-10-10) (OpenAirDocs)
- Aircraft serial: 46522
- System (JASC): [2420 · AC Generation System](https://openairdocs.org/jasc/2420)
- Part: Gcu
- Condition: Malfunctioned
- Location: Nr 2
- Stage of operation: NR
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HALA9900234

## Discrepancy

NR 2 AC BUS TIE ISOL LIGHT CAME ON IN FLIGHT PERFORMED PROCEDURES IN FCOM, LIGHT REMAINED ON.  REMOVED AND REPLACED NR 2 GCU AND BCU.  GROUND RUN CHECK OK.  (M)

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