Service difficulty report · Actuator · Boeing 737990ER

Difficulty date
December 12, 2021
Submitted
December 22, 2021
Operation
Air carrier
Aircraft
N472AS
Make and model
Boeing 737990ER
Aircraft serial
60580
Aircraft time
24,978 hours, 7,798 cycles
Part
Actuator
Part number
1226400
Part serial
YU124514
Condition
Leaking
Location
Nr 2 Eng
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 RIGHT VBV DRAIN DRIPPING FUEL. GROUNDED - YES. PERFORMED VENTS AND DRAINS INSPECTION PER B737-900 AMM 71-00-00 (TWICE). #2 ENGINE RIGHT VBV LEAKS @ A RATE OF 20 DPM. REMOVED AND REPLACED RIGHT VBV ACTUATOR ON THE #2 ENG REF AMM 75-32-02/401. OPS AND LEAK CHECK GOOD.