# SDR ASAA2017121122857

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 11, 2017
- Submitted: December 12, 2017
- Operation: Air carrier
- Aircraft: [N577AS](https://openairdocs.org/aircraft/N577AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35186
- Aircraft time: 40,731 hours, 12,161 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Idg
- Part number: 761574B
- Part serial: AAAH002865
- Condition: Faulted
- Location: Nr Generator
- Part time: 54,394 hours, 19,013 cycles
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017121122857

## Discrepancy

#1 IDG INDICATES 418 FREQ. SUBSEQUENT START SAME INDICATION. #1 GCU BITE CK NORMAL. #1 GCU INDICATED IDG FAULT. GROUNDED - YES. REMOVED AND REPLACED #1 IDG REF B737-800 AMM 24-11-11. OPS CHECK GOOD, NO LEAKS REF AMM 24-11-00. CLEARS MEL 24-1B.

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