Service difficulty report · Actuator · Boeing 737296

Difficulty date
August 23, 1995
Submitted
March 26, 2000
Operation
Air carrier
Make and model
Boeing 737296
Engine
Pwa JT8D9A
Part
Actuator
Part number
1U11501
Condition
Internal Leak
Location
Rudder
Part time
38,318 hours
Component
Dowty · 1U11501
Stage of operation
IN
Nature of condition
L
Precautionary procedure
O

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

What was found

(CAN) DURING HYDRAULIC SYSTEM INTERNAL LEAKAGE CHECK THE STANDBY SYSTEM TEST FAILED. DISPLACEMENT OF INPUT CRANK TO FULL AFT OR INDICATION IS A CURRENT INCREASE PROPORTIONAL TO ACTUATOR LEAKAGE. STANDBY ACTUATOR REPLACED. ON DISMANTLE CORROSION WAS FOUND AT PRESSURE INPUT FITTING CONNECTION, BEYOND ECONOMICAL REPAIR, PISTON SCORED, NEEDS RECHROMING AND STATIC SEALS BEGINNING TO DETERIORATE.