# SDR 08FDEA02654

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 3, 2008
- Submitted: August 5, 2008
- Operation: Air carrier
- Aircraft: [N623FE](https://openairdocs.org/aircraft/N623FE), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48794
- Aircraft time: 29,529 hours, 6,807 cycles
- System (JASC): [3411 · Pitot/Static System](https://openairdocs.org/jasc/3411)
- Part: Pitot Tube
- Condition: Obstructed
- Stage of operation: TO
- How discovered: O
- Nature of condition: C, J
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/08FDEA02654

## Discrepancy

ON TAKEOFF ROLL AIRSPEED INDICATORS DIFFERED BY 20 KNOTS REJECT T/O   04JUL08  09:12 TPE R.  PERFORM PITOT TUBE PURGE ON AUX PITOT TUBE FOUND A BIG CLUNK OF MUD BLEW OUT THEN PERFORMED LEAK CHECK NORMAL PER MM 34-11-00-2.

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