Service difficulty report · Isolation Valve · Boeing 737330

Difficulty date
March 25, 2021
Submitted
March 29, 2021
Operation
Air carrier
Aircraft
N360WA
Make and model
Boeing 737330
Aircraft serial
25215
Aircraft time
62,000 hours, 48,650 cycles
Part
Isolation Valve
Part number
1U1234
Part serial
8110
Condition
Leaking
Location
Hyd System
Part time
12,096 hours, 11,427 cycles
Stage of operation
CL
How discovered
O
Nature of condition
K, J
Precautionary procedure
A

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

What was found

DISCREPANCY: HYDRAULIC SYSTEM A, LOSS ALL FLUID ON CLIMB OUT THROUGH 14,000FT. RAN QRH, NORMAL LANDING. CORRECTIVE ACTION: REMOVED AND REPLACED SYSTEM A ELEVATOR ISOLATION VALVE IAW AMM 27-31-84, LEAK AND OPT CHECKED GOOD.