# SDR ASAA12510919

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 10, 2012
- Submitted: January 12, 2012
- Operation: Air carrier
- Aircraft: [N557AS](https://openairdocs.org/aircraft/N557AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35176
- Aircraft time: 21,331 hours, 6,330 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Idg
- Part number: 761574B
- Part serial: AAAH004591
- Condition: Defective
- Location: Nr 2 Engine
- Part time: 19,826 hours, 6,226 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA12510919

## Discrepancy

NUMBER TWO (2) ENGINE GENERATOR INOPERATIVE.  NR 2 GCU SHOWS IDG FAULT.  ACCOMPLISHED NR 2 GCU BITE PER FIM 24 21 TASK 801.  NO FAULTS NOTED.  FOUND NR 2 IDG OVERSERVICED.  SERVICED PER MM 12 13 21.  RAN ENGINE NO HELP.  REPLACED NR 2 ENGINE IDG ASSY REF M/M 24 11 11 SYSTEM OPS CHECKS NORMAL REF M/M 24 11 00 700 803.

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