# SDR AWXA200500701

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 14, 2005
- Submitted: June 15, 2005
- Operation: Air carrier
- Aircraft: N327AW
- Make and model: Boeing 737-3Q8
- Registry model: [Boeing 737-3Q8](https://openairdocs.org/model/boeing-737-3q8) (OpenAirDocs)
- Aircraft serial: 23507
- System (JASC): [3414 · Airspeed/Mach Indicator](https://openairdocs.org/jasc/3414)
- Part: Indicator
- Condition: Failed
- Location: Lt Airspeed
- Stage of operation: TO
- How discovered: O
- Nature of condition: J
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AWXA200500701

## Discrepancy

PHX - ABORTED TAKEOFF - FLT 792 - DURING TAKEOFF CAPTAINS AIRSPEED INDICATOR WAS FLAGGED AND NO AIRSPEED INDICATION.  ABORTED TAKEOFF AT 90 KNOTS, RETURNED TO THE GATE IN PHOENIX WITHOUT FURTHER INCIDENT.  MAINTENANCE REMOVED AND REPLACED NR 1 MACH AIRSPEED INDICATOR IAW BOEING 737-300 MM 34-12-21-424-05.  OPERATIONAL TESTS WERE GOOD.  TEAR DOWN REPORTS THEY COULD NOT CONFIRM FAULT HOWEVER DID REVEAL INTERMITTENT FLAGS THE 'N' POINTERS.  UNIT WAS OVERHAULED WITH THE A/S MOTOR, DRIVER BOARD AND NEW 'N' POINTERS INSTALLED IAW CMM 34-12-02 REV. 1

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