Service difficulty report · Actuator · Boeing 767322

Difficulty date
October 6, 2010
Submitted
October 15, 2010
Operation
Air carrier
Aircraft
N664UA
Make and model
Boeing 767322
Aircraft serial
29236
Aircraft time
43,338 hours, 11,978 cycles
Engine
Pwa PW4052
Part
Actuator
Part number
684D10015
Part serial
28
Condition
Faulty
Location
Thrust Reverser
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

LEFT REVERSER INTERLOCK STATUS MESSAGE. DUE HISTORY, UNABLE TO REPLACE INTERLOCK ACTUATOR PCN 585-9066 OUT OF STOCK SFO. INOPERATIVE REVERSER IN THE FWD THRUST IAW MEL. THIS REVERSER HAS NOT BEEN LOCKED OUT DUE ITEM IS A MUST FIX AND UNABLE TO DF. ACTUATOR ORDERED. TROUBLESHOOT IAW MM FOR LT REVERSER INTERLOCK MESSAGE. NOTE HISTORY. ABLE TO DUP PROBLEM AT GATE. LT ENGINE REVERSER LEVER DOES NOT STOP AT THE INTERLOCK POSITION. GOES TO FULL EXTEND POSITION WITHOUT WAITING FOR REVERSER TO DEPLOY. RT ENGINE REVERSER LEVER OPERATES CORRECTLY. REPLACED LT THRUST REVERSER INTERLOCK RELAY L2044, NO HELP. FOUND LT THRUST REVERSER LEVER INTRLOCK ACT ROD EXTENDED APPROX 1 CAUSING INTERLOCK STOP TO POSITION FURTHER AFT, ALLOWING LEVER TO PASS CORRECT STOP. NEED ACTUATOR M1440. INTERLOCK ACTUATOR OSTF NR E5368 AOG DEN.