# SDR UIEA2019102875796

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 27, 2019
- Submitted: October 28, 2019
- Operation: Air carrier
- Aircraft: [N496MC](https://openairdocs.org/aircraft/N496MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29257
- Aircraft time: 80,979 hours, 13,394 cycles
- System (JASC): [3417 · Air Data Computer](https://openairdocs.org/jasc/3417)
- Part: Adc
- Part number: 4040800911
- Part serial: 92043201
- Condition: Malfunctioned
- Stage of operation: TO
- How discovered: O
- Nature of condition: P
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2019102875796

## Discrepancy

REJECTED TAKE OFF AT 85 KTS DUE TO NO AIRSPEED ON F/O SIDE. (<P>REMOVED AND REPLACED ADC IAW AMM 34-12-01, OPS CHECK NORMAL AT THIS TIME.</P><P>ITEM M2: DUE TO REJECTED TAKEOFF, PERFORMED HIGH ENERGY STOP INSPECTION IAW AMM 32-12-01. ALSO PERFORMED TIRE INSPECTION IAW AMM 32-12-01. NO DEFECTS NOTED AND TIRES WITHIN LIMITS. OPS NORMAL AT THIS TIME.</P>)

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