# SDR ASAA2017050520648

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 5, 2017
- Submitted: May 8, 2017
- Operation: Air carrier
- Aircraft: [N593AS](https://openairdocs.org/aircraft/N593AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35107
- Aircraft time: 34,695 hours, 10,601 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Idg
- Part number: 761574B
- Part serial: AAAH003148
- Condition: Failed
- Location: Nr 1
- Part time: 23,745 hours, 7,272 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017050520648

## Discrepancy

AFTER START WITH NR 1 GENERATOR ON APU, SWAPPED GEN TO NR 1 ENGINE AND NR 1 GEN BUSS SOURCE OFF LIGHT CAME ON.  ACFT GROUNDED. REMOVED FILTERS FROM REMOVED IDG, NO CONTAMINATION NOTED IAW AMM 24-11-11.  REMOVED AND REPLACED THE NR 1 IDG IAW AMM 24-11-11. LEAK CHECKED GOOD, GROUND VERIFICATION SUCCESSFUL.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.