# SDR COMA0660484

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 11, 2006
- Submitted: August 17, 2006
- Operation: Air carrier
- Aircraft: [N591CA](https://openairdocs.org/aircraft/N591CA), registered now
- Make and model: Cndair CL6002B19
- Aircraft serial: 7079
- Aircraft time: 26,503 hours, 23,762 cycles
- System (JASC): [3411 · Pitot/Static System](https://openairdocs.org/jasc/3411)
- Part: Pitot Line
- Condition: Contaminated
- Stage of operation: CL
- How discovered: O
- Nature of condition: F
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/COMA0660484

## Discrepancy

FLIGHT 5587 - DURING CLIMBOUT OF AUS WITH AUTO-PILOT ON, THE AIRCRAFT BEGAN PITCHING UP AND DOWN WITH YOKE MOVEMENT FORWARD AND AFT.  FLIGHT DIRECTOR NR 1 AND 2 DID NOT MATCH.  CREW DECLARED AN EMERGENCY AND FLIGHT RETURNED TO THE FIELD.  PURGED NR 1 AND NR 2 PITOT LINES OF MOISTURE AND TIGHTENED NR 1 PITOT Q/D FITTING.  PERFORMED LEAK CHECK OF NR 1 AND NR 2 PITOT AND STATIC SYSTEMS, NO DISCREPANCIES NOTED.

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