Service difficulty report · Actuator · Boeing 737990ER

Difficulty date
June 12, 2019
Submitted
June 19, 2019
Operation
Air carrier
Aircraft
N407AS
Make and model
Boeing 737990ER
Aircraft serial
41731
Aircraft time
26,057 hours, 8,355 cycles
Engine
Cfmint CFM567B27E
Part
Actuator
Part number
1324M12P10
Part serial
APMWA719
Condition
Leaking
Location
Nr 1 Vsv
Part time
26,119 hours, 8,371 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

DURING A-CK FOUND FUEL LEAK UNDER #1 ENGINE. GROUNDED - YES. REMOVED AND REPLACED #1 ENG RH VSV ACTUATOR IAW B737-900 AMM 75-31-01-000-802-F00/AMM 75-31-01-400-802-F00. ACCOMPLISHED LEAK CK, LEAK CK GOOD. ACCOMPLISHED TESTS ON POWERPLANT TEST REF TABLE. TEST 3A IDLE LEAK CK, LEAK CK GOOD AND TEST 12 ACTUATORS TEST, OPS CK GOOD. THIS CLEARS PLT.