# SDR UIEA2021091302013

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 12, 2021
- Submitted: September 15, 2021
- Operation: Air carrier
- Aircraft: [N418MC](https://openairdocs.org/aircraft/N418MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 32840
- Engine: Ge CF680C2B5F
- System (JASC): [7830 · Engine Thrust Reverser](https://openairdocs.org/jasc/7830)
- Part: Pressure Switch
- Condition: Failed
- Stage of operation: TO
- How discovered: O
- Nature of condition: O
- Precautionary procedure: C, D, O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2021091302013

## Discrepancy

(70KTS) LOW SPEED REJECTED T/O DUE TO " ENG 3 T/R EICAS PLUS STATUS MSG. BRAKE TEMS MAX WAS 2 IN(<P>PLF SHOWS MSG 78403. PRESSIRE SWITCH FAIL TRF TO DMI 153434 PER MEL 78-31-01A CAC DUE 22SEP21. BRAKE TEMP ALL NORMAL. T/R #3 DEACTIVATED PER MEL 78-31-01A MCC; TIM TI 2006JT.</P>)

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