Service difficulty report · Actuator · Boeing 737990ER

Difficulty date
April 4, 2023
Submitted
April 11, 2023
Operation
Air carrier
Aircraft
N453AS
Make and model
Boeing 737990ER
Aircraft serial
36354
Aircraft time
34,713 hours, 10,922 cycles
Part
Actuator
Part number
4324M12P10
Part serial
APMYR116
Condition
Leaking
Location
Nr 1 Engine
Part time
34,713 hours, 10,922 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

#1 ENG. FUEL DRIPPING FROM DRAIN APPROX 4 DROPS PER MIN. GROUNDED - YES. L/H VSV ACTUATOR LEAKING W/IN THRESHOLD LIMITS, UNDER 90 DROPS PER MINUTE, 25 FLIGHT CYCLE DEFERRAL REF B737-900 AMM 71-71-00-200-801. REMOVED AND REPLACED #1 ENG L/H VSV ACTUATOR IAW AMM 75-31-01-400-801-F00 & 75-31-01-000-801 LEAK CHECK GOOD.