Service difficulty report · Shutoff Valve · Boeing 767322

Difficulty date
July 21, 2023
Submitted
July 24, 2023
Operation
Air carrier
Aircraft
N643UA
Make and model
Boeing 767322
Aircraft serial
25093
Aircraft time
127,220 hours, 19,782 cycles
Part
Shutoff Valve
Part number
340545
Part serial
4777
Condition
Cracked
Location
Unknown
Part time
127,211 hours, 19,781 cycles
Stage of operation
IN
How discovered
O
Nature of condition
K, O
Precautionary procedure
K

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

What was found

EVIDENCE OF HYD LEAK COMING FROM TAIL SKID AREA. BOTTOM OF TAIL WET WITH HYD FLUID. SEE PHOTO. INSPECTED AND FOUND V103 C EMPENNAGE SHUTOFF VALVE HOUSING CRACKED. SEE PHOTOS. REMOVED AND REPLACED C EMPENNAGE SHUTOFF VALVE REF AMM 27-23-01. OPS CHECK NORMAL. NO LEAKS NOTED PARTS USED: 40-0595-3-1984,QTY :1 40-0595-3-1963,QTY :1 75-2910-9-0001,QTY :1 1842848,QTY :1 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1842848 SN OFF 4777 IPC REFERENCE # 27-23-01-01 VALVE, SHUTOFF, OFF 75-2910-9-0001 4777 ON 75-2910-9-0001 8278