Service difficulty report · Valve · Boeing 727222

Difficulty date
November 15, 2000
Submitted
December 12, 2000
Operation
Air carrier
Aircraft
N7280U
Make and model
Boeing 727222
Aircraft serial
21558
Aircraft time
64,443 hours, 36,768 cycles
Engine
Pwa JT8D15
Part
Valve
Part number
AV13J5100
Condition
Bypassing
Location
Hyd System
Stage of operation
TX
How discovered
O
Nature of condition
J
Precautionary procedure
D

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

What was found

BOTH PUMPS ON THE A HYDRAULIC SYSTEM WERE INDICATING OVERHEAT. CONTINUED TO DEN AND AMBER ALERT DECLARED. AIRCRAFT TOWED TO GATE. SUPPLEMENTAL DATA UPDATE FOUND HYDRAULIC RUDDER MODULE BYPASSING. REPLACED MODULE AND RELATED COMPONENTS PER MAINTENANCE MANUAL. RESERVICED HYDRAULIC SYSTEM. OPS CHECK OK.