Service difficulty report · Sequence Valve · Boeing 757222

Difficulty date
November 17, 2017
Submitted
November 21, 2017
Operation
Air carrier
Aircraft
N775FD
Make and model
Boeing 757222
Aircraft serial
25043
Aircraft time
77,884 hours, 29,175 cycles
Part
Sequence Valve
Part number
60B002533
Part serial
723
Condition
Inoperative
Location
Mlg Doors
Stage of operation
LD
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

GEAR DOORS MESSAGE AND DOORS LIGHT ON FINAL APPROCH AROUND 160KTS. NO OTHER GEAR ISSUES. REPEAT WRITE UP. UPON ARRIVAL FOUND RH GEAR DOOR HANGING DOWN APPROX 18 IN. T/S PER FIM 32-30 FAULT TREE 802. FOUND NO DAMAGE TO DOOR LINKAGE OR MECHANISMS. HAD NO PRESS AT DOOR ACTUATOR. INSPECTED RESTRICTOR CHECK VALVE ON SEQUENCE VALVE. NO DEFECTS. PER FIM BLOCK 13 REPLACE UPLOCK OPERATED SEQUENCE VALVE. NO FAULTS RECORDED AT PSEU.