Service difficulty report · Actuator · Boeing 777222

Difficulty date
November 23, 2013
Submitted
November 26, 2013
Operation
Air carrier
Aircraft
N798UA
Make and model
Boeing 777222
Aircraft serial
26928
Aircraft time
69,751 hours, 9,860 cycles
Engine
Pwa PW4090
Part
Actuator
Part number
54H217
Part serial
69
Condition
Stuck
Location
Nr 2 Engine
Stage of operation
NR
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

TURBINE CASE COOL LPT RT ENG LPT CASE COOLING ACTUATOR IS STUCK OR REVERTED TO ITS FAIL SAFE POSITION. REPLACED NR 2 ENG TCC ACT. IAW MM 75-24-05 PG401 & ACCOMPLISHED RIG IAW MM75-24-00 PG501. ACCOMPLISHED TEST 3,6,&15 IAW MM71-00-00 PG501. OPERATIONS & LEAK CHECKED OK. NO EXISTING FAULTS NOTED.