Service difficulty report · Actuator · Boeing 777222

Difficulty date
April 6, 2011
Submitted
April 8, 2011
Operation
Air carrier
Aircraft
N211UA
Make and model
Boeing 777222
Aircraft serial
30217
Aircraft time
38,841 hours, 8,549 cycles
Engine
Pwa PW4077
Part
Actuator
Part number
1U15257
Part serial
2391
Condition
Leaking
Location
Thrust Reverser
Stage of operation
NR
How discovered
O
Nature of condition
K
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

RIGHT ENGINE HAS OIL DRIPPING FROM COWL. DURING RETRACT OPERATION INBOARD, MIDDLE RETRACT ACTUATOR LEAKS BEYOND DISPATCH LIMITS, APPROX 40 DROPS PER CYCLE. NO LEAKAGE STATIC. LOCKED OUT REVERSER PER MEL7831A. REPLACED THRUST REVERSER ACTUATOR REF MM. LEAK CHECK AND OPS CHECK GOOD.