# SDR ABXA20251106289

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 6, 2025
- Submitted: November 7, 2025
- Operation: Air carrier
- Aircraft: [N364CM](https://openairdocs.org/aircraft/N364CM), registered now
- Make and model: Boeing 767338
- Aircraft serial: 24531
- Aircraft time: 100,868 hours, 37,472 cycles
- System (JASC): [7740 · Engine Integrated Instrument System](https://openairdocs.org/jasc/7740)
- Part: Sensor
- Part number: 8TJ163AAB1
- Part serial: DT96562
- Condition: Defective
- Location: N1 Speed
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ABXA20251106289

## Discrepancy

DURING TAXI, RIGHT ENGINE N1 STARTED ON 2 STARTS AND NO N1 INDICATION ON SEI SHOWS 0.  AIRCRAFT RETURNED TO BLOCKS (BTB).  REMOVED AND REPLACED N1 SPEED SENSOR IAW B767 AMM 77-12-01.  OPS CHECK GOOD.  A/C REMAINS ETOPS 180.  STANDBY INDICATOR REINSTALLED IAW B767 AMM 77-41-01.  AIRCRAFT RETURNED TO SERVICE.

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