# SDR RYNA2012011200002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 12, 2012
- Submitted: January 13, 2012
- Operation: Air carrier
- Aircraft: N964AS
- Make and model: Doug DC-9-83
- Registry model: [Doug DC-9-83](https://openairdocs.org/model/douglas-dc-9-83) (OpenAirDocs)
- Aircraft serial: 53078
- Aircraft time: 54,080 hours, 27,758 cycles
- System (JASC): [3417 · Air Data Computer](https://openairdocs.org/jasc/3417)
- Part: Adc
- Part number: HG280D80
- Part serial: 632
- Condition: Failed
- Location: Zone 100
- Part time: 54,080 hours, 27,758 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/RYNA2012011200002

## Discrepancy

FIRST OFFICER'S AIRSPEED SHOWS OVERSPEED,  CAPTAIN'S AIRSPEED SHOWING 250.  REPLACED NR 2 CADC IAW AMM 34-16-01.  OPS CHECKED NORMAL.  HIGH LEVEL PITOT STATIC SYSTEM CHECKED PER AMM 34-11-00.  NO LEAKS NOTED.

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