# SDR ASAA2018070225241

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 30, 2018
- Submitted: July 2, 2018
- Operation: Air carrier
- Aircraft: [N512AS](https://openairdocs.org/aircraft/N512AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 39043
- Aircraft time: 38,227 hours, 11,497 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Idg
- Part number: 761574B
- Part serial: AAAH002972
- Condition: Failed
- Location: Nr 1 Engine
- Part time: 53,775 hours, 18,214 cycles
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2018070225241

## Discrepancy

NR 1 DRIVE LIGHT NOT ILLUMINATED WITH ENGINE SHUT DOWN. GROUNDED - YES. PERFORMED FIM 24-11 TASK 804, CHANGE PRESSURE SWITCH RESISTANCE OUT OF LIMITS, REQUIRES IDG CHANGE. REMOVED AND REPLACED IDG REF AMM 24-11-11. OPS CHECK GOOD.

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