SDR ABXA202604264173

Service difficulty report · Start Valve · Boeing 76737D

Difficulty date: April 24, 2026
Submitted: April 26, 2026
Operation: Air carrier
Aircraft: N1327A
Make and model: Boeing 76737D
Aircraft serial: 26328
Aircraft time: 98,295 hours, 17,155 cycles
System (JASC): 8012 · Engine Start Valves/Controls
Part: Start Valve
Condition: Faulted
Location: Nr 1 Engine
Stage of operation: TX
How discovered: O
Nature of condition: P
Precautionary procedure: D

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING TAXI OUT WHILE STARTING NR 1 ENGINE NO ROTATION ON NR 1, START VALVE STAYED OPEN , A/C RETURNED TO THE GATE (BTB) AND MTX GROUNDED A/C AND DEFERRED NR 1 START VALVE IAW MEL ABX-80-00-2-1 .A/C REMAINS ETOPS 180 . AND RETURNED ACFT TO SERVICE .

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