# SDR ASAA2021050634767

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 6, 2021
- Submitted: May 10, 2021
- Operation: Air carrier
- Aircraft: [N512AS](https://openairdocs.org/aircraft/N512AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 39043
- Aircraft time: 45,805 hours, 13,547 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Idg
- Part number: 761574B
- Part serial: AAAH009032
- Condition: Noisy
- Location: Nr 2
- Part time: 31,450 hours, 10,177 cycles
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021050634767

## Discrepancy

REF LOG PAGE 60191450, L/E LOCKOUT REMAINS WITH STANDBY ALTERNATE PROCEDURES & UNCOMMON NOISE HEARD WHILE RUNNING #2 ENGINE. GROUNDED - YES. WHILE IDLING #2 ENGINE VIBRATION & NOISE ENDED W/ IDG DISCONNECT. REMOVED AND REPLACED #2 IDG REF B737-800 AMM 24-11-11 DURING IDLE RUN THE ODD VIBRATION NOISE WAS NO LONGER THERE.

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