# SDR IPXA2019090346254

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 3, 2019
- Submitted: September 3, 2019
- Operation: Air carrier
- Aircraft: [N303UP](https://openairdocs.org/aircraft/N303UP), registered now
- Make and model: Boeing 767-34AF
- Registry model: [Boeing 767-34AF](https://openairdocs.org/model/boeing-767-34af) (OpenAirDocs)
- Aircraft serial: 27241
- Aircraft time: 60,866 hours, 20,540 cycles
- System (JASC): [3417 · Air Data Computer](https://openairdocs.org/jasc/3417)
- Part: Adc
- Part number: 4040800916
- Part serial: 35534086
- Condition: Malfunctioned
- Location: Cockpit
- Stage of operation: TO
- 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/IPXA2019090346254

## Discrepancy

INSPECTION TYPE:N/A ATB - EMERGENCY DECLARED - DURING TAKEOFF ROLL AT APPROXIMATELY 90 KNOTS, NO AIRSPEED INDICATION ON F/O AIRSPEED INDICATOR.REPLACED ADC-R, FOUND ALL IND BACK TO NORMAL. P/N ON : 4040800-917, S/N ON: 743515.

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