# SDR 9707399874

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 9, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N783NC
- Make and model: Doug DC-9-51
- Registry model: [Doug DC-9-51](https://openairdocs.org/model/mcdonnell-douglas-dc-9-51) (OpenAirDocs)
- Aircraft serial: 48108
- System (JASC): [3445 · Air Collision Avoidance System](https://openairdocs.org/jasc/3445)
- Part: Tcas Computer
- Part number: 4066010904
- Condition: Failed
- Location: E/E Compt
- Part time: 8,811 hours
- Stage of operation: CL
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9707399874

## Discrepancy

AFTER TAKEOFF, CAPTAIN'S GYRO FLAG APPEARED AND GYRO TUMBLED.  FLIGHT RETURNED TO MSP AND LANDED WITHOUT INCIDENT.  REPLACED TCAS COMPUTER.  TCAS AND ATTITUDE OPERATION CHECKED OK.

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