# SDR AALA20150617010

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 14, 2015
- Submitted: June 17, 2015
- Operation: Air carrier
- Aircraft: [N947AN](https://openairdocs.org/aircraft/N947AN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 29536
- Aircraft time: 44,740 hours, 18,315 cycles
- System (JASC): [2424 · AC Regulator](https://openairdocs.org/jasc/2424)
- Part: Gcu
- Condition: Defective
- Location: Zone 100
- Stage of operation: CR
- How discovered: O
- Nature of condition: H, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20150617010

## Discrepancy

AIR INTERRUPT, DIVERTED, NO EMER WAS DECLARED, LANDING WAS UNEVENTFUL & ACFT WAS NOT OVERWEIGHT.  NR 2 SOURCE OFF LIGHT ILLUMINATED IN FLIGHT.  PRIOR TO SOURCE OFF LIGHT THE NR 1 TR UNIT AMPS WERE FLUCTUATING BETWEEN 5 - 0.  THE TR UNIT LIGHT ILLUMINATED INTERMITTENTLY UNTIL THE NR 2 SOURCE LIGHT ILLUMINATED.  NR 1 TR UNIT OPERATES NORMAL AFTER NR 2 SOURCE OFF LIGHT ILLUMINATED.  REPLACED GEN CONTROL UNIT IAW AMM 24-21-81. PLEASE SEE AALA20150614002 & AALA20150617011 FOR ADDITIONAL PART INFORMATION.

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