# SDR COZA20161123099

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 20, 2016
- Submitted: November 24, 2016
- Operation: Air carrier
- Aircraft: [N737KA](https://openairdocs.org/aircraft/N737KA), registered now
- Make and model: Boeing 737-7BX
- Registry model: [Boeing 737-7BX](https://openairdocs.org/model/boeing-737-7bx) (OpenAirDocs)
- Aircraft serial: 30740
- Aircraft time: 29,137 hours, 17,098 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Idg
- Part number: 761574B
- Part serial: 2169
- Condition: Failed
- Location: Rt Engine
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: H
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/COZA20161123099

## Discrepancy

RIGHT ENGINE DRIVE LIGHT ILLUMINATED AT ENGINE START.  USING THE FAULT ISOLATION MANUAL, DETERMINED RIGHT IDG TO HAVE AN INTERNAL FAULT THAT CAUSED AN AUTOMATIC DISCONNECT.  REPLACED THE IDG AND OPERATIONAL CHECKED NORMAL.

---
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.