# SDR AWXA200500991

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 20, 2005
- Submitted: August 23, 2005
- Operation: Air carrier
- Aircraft: N334AW
- Make and model: Boeing 737-3Y0
- Registry model: [Boeing 737-3Y0](https://openairdocs.org/model/boeing-737-3y0) (OpenAirDocs)
- Aircraft serial: 23748
- Aircraft time: 48,292 hours, 28,220 cycles
- System (JASC): [3417 · Air Data Computer](https://openairdocs.org/jasc/3417)
- Part: Adc
- Condition: Malfunctioned
- Location: Right
- Stage of operation: TO
- How discovered: O
- Nature of condition: G
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AWXA200500991

## Discrepancy

ABORTED TAKEOFF C-CHECK NON REVENUE FLT HAD REJECTED TAKEOFF AT 80 KTS FOR CAPTAINS ALTIMETER, MACH AIRSPEED INDICATOR & MACH TRIM FAIL LIGHT ALSO SPEED TRIM FAIL LIGHT.  A VARIETY OF EFIS INFORMATION LOST WHEN AUTO THROTTLES DISENGAGED.  MX R & R LT & RT ADC IAW AWA TC R2A34007.  OPS CHECKS GOOD IAW AWA R2A34007.  CONFIRMED FAILURE OF LT ADC, UNIT FAILED INCOMING FUNCTIONAL RATE OF CLIMB TEST.  REPLACED SYNCHRO BOARD & RESOLVER BOARD.  WORK PERFORMED IAW CMM 34-10-97 REV 10.  WAS NOT ABLE TO CONFIRM FAULT ON THE RT ADC, NO FAULTS WERE FOUND WITH UNIT.  UNIT INSPECTED & FUNCTIONALLY TESTED IAW CMM 34-10-97 REV 10.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.