# SDR 04FDEA02567

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 26, 2004
- Submitted: August 27, 2004
- Operation: Air carrier
- Aircraft: [N605FE](https://openairdocs.org/aircraft/N605FE), registered now
- Make and model: Doug MD-11
- Registry model: [Doug MD-11](https://openairdocs.org/model/mcdonnell-douglas-md-11) (OpenAirDocs)
- Aircraft serial: 48514
- Aircraft time: 41,507 hours, 9,472 cycles
- System (JASC): [3414 · Airspeed/Mach Indicator](https://openairdocs.org/jasc/3414)
- Part: Pitot Tube
- Condition: Obstructed
- Location: Pitot/Static Sys
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/04FDEA02567

## Discrepancy

ON DESCENT DURING APPROACH GOT IAS ON PFD AND SELECT ELEV FEEL MAN, LVL 2 ALERT.  ALSO HAD WINDSHEAR FAIL DET ALERT ON STATUS PAGE.  STANDBY A/S SHOWED F/O'S INDICATOR ACCURATE.  CAPT'S 10 KNOTS SLOW.  RAN READ TAB. B  Y TOUCHDOWN, F/O'S INDICATOR READ 156 KNOTS, CAPTAINS READ 118 KNOTS IN YELLOW.  FOLLOWED T/S PER FIM34-11-02 AND FOUND A/S TOLERANCE BET CAPT AND F/O BEYOND LIMIT REF FIG 103 TABLE.  PHYSICALLY INSPECTED PITOT PROBES FOUND SMALL DEBRIS ON CAPT PROBE WHEN PURGED.  REMOVED AND REPLACED CAPT PROBE & NR 1 CADC PER MM 34-16-01 AND MM 34-11-01.  PERFORMED SYS TEST PER MM 34-16-01-5, SATISFACTORY.  COMPLIED W/ MTSI 34-10/9654 STEPS 1-6, SATISFACTORY.

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