# SDR ABXA20260130039

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 30, 2026
- Submitted: January 30, 2026
- Operation: Air carrier
- Aircraft: [N650GT](https://openairdocs.org/aircraft/N650GT), registered now
- Make and model: Boeing 767231
- Aircraft serial: 22566
- Aircraft time: 94,923 hours, 28,498 cycles
- System (JASC): [8012 · Engine Start Valves/Controls](https://openairdocs.org/jasc/8012)
- Part: Start Valve
- Part number: 7755383
- Part serial: T35620
- Condition: Defective
- Location: Lt Engine
- Part time: 8,680 hours, 5,617 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ABXA20260130039

## Discrepancy

DURING TAXI OUT, UPON START ATTEMPT FOR LH ENG, ENG START VALVE WOULD NOT OPEN.  AIRCRAFT RETURNED TO BLOCKS (BTB).  DEFERRED LT ENG START VALVE PER MEL 80-00-2-1. PLACARDS INSTALLED. MBCB 02/09/26.  REPLACED LT ENGINE START VALVE PER B767 AMM 80-11-02. SYSTEM CHECKS NORMAL. DI AND PLACARD REMOVED. NO MTC PROCEDURES APPLIED.  AIRCRAFT RETURNED TO SERVICE.

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