Service difficulty report · Actuator · Boeing 737990ER

Difficulty date
May 22, 2023
Submitted
May 26, 2023
Operation
Air carrier
Aircraft
N433AS
Make and model
Boeing 737990ER
Aircraft serial
41704
Aircraft time
35,538 hours, 11,232 cycles
Part
Actuator
Condition
Leaking
Location
Nr 1 Eng Vsv
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 LEAKING FUEL. GROUNDED - YES. FOUND RIGHT VSV DRAIN LEAKING FUEL. OBSERVED 20 DROPS PER MINUTE FROM #1 ENGINE RIGHT VSV DRAIN LINE DURING IDLE LEAK CHECK. PER B737-900 AMM 71-71-00-200-801-F00 PARA (G)(1) PER FIGURE 605 (LESS THAN 90 DPM). REMOVED #1 ENG VSV RH SIDE IAW AMM 75-31-01-000-802-F00. INSTALLED #1 ENG RIGHT VSV ACTUATOR PER AMM 75-31-01-400-802-F00.