# SDR AALA20160714018

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 14, 2016
- Submitted: July 18, 2016
- Operation: Air carrier
- Aircraft: [N972TW](https://openairdocs.org/aircraft/N972TW), registered now
- Make and model: Doug DC-9-83
- Registry model: [Doug DC-9-83](https://openairdocs.org/model/douglas-dc-9-83) (OpenAirDocs)
- Aircraft serial: 53622
- Aircraft time: 48,426 hours, 23,693 cycles
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Transmission
- Part number: 696233B
- Part serial: 4184
- Condition: Faulty
- Location: Nr 1
- Part time: 4,246 hours, 2,007 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20160714018

## Discrepancy

DURING CRUISE THE NR 1 CONSTANT SPEED DRIVE TEMPERATURE ROSE ABOVE AN ACCEPTABLE LEVEL HIGH AND WAS DISCONNECTED BY FLIGHT CREW.  EMERGENCY DECLARED. LANDING UNEVENTFUL.  AIRCRAFT GROUNDED.  REMOVED AND REPLACED NR 1 CONSTATNT SPEED DRIVE TRANSMISSION AND GENERATOR IAW AMM 24-10-01. OPS AND LEAK CHECKED NORMAL.

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