Service difficulty report · Actuator · Boeing 737990ER

Difficulty date
January 21, 2023
Submitted
January 23, 2023
Operation
Air carrier
Aircraft
N409AS
Make and model
Boeing 737990ER
Aircraft serial
41733
Aircraft time
36,011 hours, 11,492 cycles
Engine
Cfmint CFM567B27E
Part
Actuator
Part number
1324M12P10
Part serial
APMMF479
Condition
Leaking
Location
Nr 2 Vsv
Part time
71,020 hours, 32,234 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

REF. DEFECT # 60250576. W/O 1938860. TASK CARD N/R-00001. DURING DAY MOTOR LEAK CHECK OF #2 ENGINE AFT SUMP CHIP DETECTOR FOUND RIGHT VSV ACTUATOR LEAKING PAST SERVICEABLE LIMITS. GROUNDED - YES. ISOLATED FUEL LEAK COMING FROM DRAIN PORT ON ACTUATOR REF B737-900 AMM 75-31-01. HEAD AND ROD SHROUDS AND NIPLES ALONG WITH ACTUATOR DRAIN TUBE ALL DISCONNECTED UPPER RH SHROUD SEGMENT RMVD. D. DOVE 30236 01-21-2023. REMOVED & REPLACED RH VSV ACTUATOR, REF B737-900 AMM 75-31-01. ALL OPS CHECKS & LEAK GOOD.