Service difficulty report · Control Unit · Boeing 757222

Difficulty date
October 3, 2001
Submitted
October 31, 2001
Operation
Air carrier
Aircraft
N565UA
Make and model
Boeing 757222
Aircraft serial
26669
Aircraft time
31,210 hours, 11,478 cycles
Engine
Pwa PW2037
Part
Control Unit
Condition
Malfunctioned
Location
Rudder
Stage of operation
NR
How discovered
O
Nature of condition
F
Precautionary procedure
A

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

What was found

RUDDER REQUIRES 6 UNITS OF LEFT TRIM. ACCOMPLISHED TROUBLESHOOTING OF RUDDER TRIM AND RUDDER RATIO SYSTEMS AND EXAMINED RATIO CHANGER SHEAR PINS. NO DISCREPANCIES FOUND, AIRCRAFT RETURNED TO SERVICE WITHOUT FURTHER GRIPES ABOUT EXCESSIVE TRIM REQUIRED.