Service difficulty report · Valve · Boeing 737890

Difficulty date
September 27, 2022
Submitted
October 3, 2022
Operation
Air carrier
Aircraft
N585AS
Make and model
Boeing 737890
Aircraft serial
35683
Aircraft time
55,013 hours, 16,412 cycles
Engine
Cfmint CFM567B27B3
Part
Valve
Part number
32913903
Part serial
GRTS0744
Condition
Leaking
Location
Fuel System
Part time
55,503 hours, 18,027 cycles
Stage of operation
IN
How discovered
V
Nature of condition
K
Precautionary procedure
K

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

What was found

#2 ENGINE FUEL DRIPPING FROM DRAIN MAST WITH ENGINE OFF. GROUNDED - YES. FUEL LEAKING FROM #2 ENGINE TBV @ 70 DROPS /MIN STATIC. RAN ENGINE FOR 5 MINUTES REF B737-800 AMM 71000-00-700-801-F00 TEST 3A. LEAKAGE STOPPED. AFTER SHUT DOWN 4 DROPS /MIN. DEFERRED MAINT FOR 25 FLT CYCLES. REMOVED AND REPLACED #2 ENGINE TRANSIENT BLEED VALVE IAW AMM 75-23-01/401 OPS AND LEAK CHECK GOOD.