Service difficulty report · Drain Valve · Boeing 737890

Difficulty date
September 8, 2019
Submitted
September 10, 2019
Operation
Air carrier
Aircraft
N558AS
Make and model
Boeing 737890
Aircraft serial
35177
Aircraft time
50,190 hours, 14,803 cycles
Engine
Cfmint CFM567B27
Part
Drain Valve
Part number
32911866
Part serial
GRTS4951
Condition
Leaking
Location
Nr 2 Engine
Part time
48,088 hours, 14,628 cycles
Stage of operation
TX
How discovered
O
Nature of condition
K
Precautionary procedure
D

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

What was found

RAMP REPORTS FUEL SPRAY FROM #2 ENG ON START. GROUNDED - YES. FOUND HPTACC VALVE DRAIN DRIPPING 8 DROPS PER MINUTE STATIC. NO LEAKS OR DRIPS DURING OR AFTER START, REF AMM 71-71-00. WITHIN DEFERRABLE LIMITS. HPTACCV TO BE REPLACED WITHIN 25 FLIGHT CYCLES. REMOVED AND REPLACED #2 ENG HPTACC VALVE OPS AND LEAK CHECK GOOD NO FUEL LEAKS NOTED REF AMM 75-21-01-400-801. CLEARED PLT.