Service difficulty report · Actuator · Boeing 7378H4

Difficulty date
May 17, 2026
Submitted
May 21, 2026
Operation
Air carrier
Aircraft
N8689C
Make and model
Boeing 7378H4
Aircraft serial
36658
Aircraft time
33,525 hours, 16,693 cycles
Part
Actuator
Condition
Leaking
Location
Nr 1 Engine
Stage of operation
TX
How discovered
O
Nature of condition
K
Precautionary procedure
O

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

What was found

NR 1 ENGINE LEAKING FUEL AFTER SHUTDOWN. FOUND RIGHT VSV HAVING A STATIC LEAK AT THE RATE OF A STEADY STREAM. FOUND SPAR VALVE ACTUATOR STUCK IN OPEN POSITION. R & R NR 1 SPAR VALVE ACTUATOR IAW AMM 28-22-11. OPS TEST GOOD. NO LEAKS NOTED AFTER ENG RUN.

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