# SDR UIEA2020091731983

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 13, 2020
- Submitted: September 17, 2020
- Operation: Air carrier
- Aircraft: [N475MC](https://openairdocs.org/aircraft/N475MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29252
- Aircraft time: 85,768 hours, 15,975 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Autopilot Sys
- Condition: Malfunctioned
- 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/UIEA2020091731983

## Discrepancy

DURING TAKE OFF ROLL AT APPROX 90 KTS RECEIVED MASTER WARNING LIGHT, AS WELL AS, EICAS MSG "AUTOPILOT DISCONNECT" AND "NO LAND 3".  REJECTED TAKE OFF.  EICAS MSG AND WARNING CONTINUED DURING TAXI TO GATE.  HIGH ENERGY & STOP, INSPECTION NOT REQUIRED.  PLACED LT AUTOPILOT ON MEL 22-10-01A MDDR 134356.

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