# SDR CA101110002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 8, 2010
- Submitted: January 4, 2011
- Operation: Air carrier
- Make and model: Dhav DHC8301
- Propeller: Hamstd 14SF23
- System (JASC): [3417 · Air Data Computer](https://openairdocs.org/jasc/3417)
- Part: Dadc
- Part number: 7000700977
- Condition: Malfunctioned
- Location: Nr 1
- Part time: 11,033 hours
- Stage of operation: CL
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA101110002

## Discrepancy

(CAN) PILOTS REPORT: "DURING CLIMB, "OFF" FLAG APPEARED ON NUMBER ONE ALTIMETER AND INERTIAL VERTICAL SPEED INDICATOR WITH TCAS FAIL BOTH SIDES.  MAINTENANCE WATCH REQUESTED RETURN TO BASE." "NR 1 ADC REPLACED.  ADJUSTMENT/TEST C/O.  SELF TEST AND PITOT STATIC FUNCTION AND LEAK CHECK.  WITHIN TOLERANCES IAW MM CH 34-12-01."

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