# SDR FDEA201105312036

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 31, 2011
- Submitted: June 1, 2011
- Operation: Air carrier
- Aircraft: [N597FE](https://openairdocs.org/aircraft/N597FE), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48596
- Aircraft time: 63,365 hours, 10,954 cycles
- System (JASC): [3414 · Airspeed/Mach Indicator](https://openairdocs.org/jasc/3414)
- Part: Pitot Tube
- Part number: 851DK
- Condition: Dirty
- Stage of operation: CR
- How discovered: V
- Nature of condition: I
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA201105312036

## Discrepancy

F/O CADC FAIL LOST AIRSPEED INDICATION F/O SIDE.  FOUND F/O'S PITOT TUBE BLOCKED BY UNKNOWN DEBRIS.  DISCONNECTED PITOT TUBE AND TRIED PURGING TUBE.  DEBRIS WILL NOT DISLODGE. ORDERED NEW TUBE, AWAITING PARTS.   F/O'S PITOT TUBE REMOVED IAW AMM 34-11-01-2.  R & R F/O'S PITOT TUBE AND PERFORMED A SATISFACTORY OPS CK, REF: AMM 34-11-01.

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