Service difficulty report · Actuator · Boeing 767322

Difficulty date
June 17, 2011
Submitted
July 14, 2011
Operation
Air carrier
Aircraft
N657UA
Make and model
Boeing 767322
Aircraft serial
27112
Aircraft time
79,393 hours, 12,749 cycles
Engine
Pwa PW4060
Part
Actuator
Condition
Malfunctioned
Location
Rudder
Stage of operation
NR
How discovered
9
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

RUDDER OUT OF RIG 5 UNITS TO LEFT. WORKING RDR RIG. MEASURED RUDDER ACTUATOR INDEX POSITIONS FOR LEFT, CENTER AND RIGHT HYDRAULIC SYSTEMS. WHEN ALL SYSTEMS PRESSURIZED, INDEX IS SLIGHTLY TO THE LEFT OF PLATE. WHEN RIGHT SYSTEM PRESSURIZED ONLY, RUDDER TRAILING EDGE IS 1.468" RIGHT OF INDEX. CENTER SYSTEM PRESSURIZED ONLY, RUDDER TRAILING EDGE IS 0.39" TO LEFT OF INDEX. LEFT SYSTEM PRESSURIZED ONLY, RUDDER TRAILING EDGE IS CENTER RUDDER PCA (LEFT SYSTEM). OPERATIONAL TESTS NORMAL. BOTH UPPER AND LOWER RUDDER PCAS WITHIN LIMITS AND OPS TESTED NORMAL.