# SDR UALA2012083104914

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 31, 2012
- Submitted: October 12, 2012
- Operation: Air carrier
- Aircraft: [N663UA](https://openairdocs.org/aircraft/N663UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 27160
- Aircraft time: 83,415 hours, 13,416 cycles
- Engine: Pwa PW4060
- System (JASC): [2424 · AC Regulator](https://openairdocs.org/jasc/2424)
- Part: Gcu
- Part number: M734284AF
- Part serial: 89
- Condition: Popped
- Location: Nr 2 Engine
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2012083104914

## Discrepancy

RIGHTT ENGINE IDG VALVE C/B POPPING.  THIS IS M31 CB(28VDC).  IT IS CHRONIC AND MEL 7521D CANNOT BE USED TO DF THE RIGHT IDG VALVE, DUE TO STATING AFTER DEACTIVATION OF THE VALVE PUSH THE C/B IN.  THIS ITEM NEEDS TO BE FIXED OR PROVISION OF MEL GET CHARGED.  REPLACED GCU NR 2; RIGHT ENGINE, OPS CHECK GOOD.

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