SDR 95UAL900265

Service difficulty report · Lever Assy · Boeing 737322

Difficulty date: November 20, 1995
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N311UA
Make and model: Boeing 737322
Aircraft serial: 23672
Engine: Ge CFM56*
System (JASC): 2710 · Aileron Control System
Part: Lever Assy
Part number: 69710028
Condition: Worn
Location: Ailerons
Stage of operation: IN
Nature of condition: O
Precautionary procedure: K

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

What was found

AILERON AUTOPILOT ACTUATOR LEVER ASSEMBLY WAS FOUND WITH SHEAR FASTENERS SHEARED. ONE FASTENER MAINTAINED CONNECTION BETWEEN THE POWER CONTROL UNIT AND THE LEVER ASSEMBLY. THE PLAY IN THE ASSEMBLY ELONGATED THE HOLES OF THE LEVER ATTACH HOLES AND CAUSED DRIFTING IN THE 'A' AUTOPILOT SYSTEM. AILERON LEVER ASSEMBLY WAS REPAIRED PER BOEING OVERHAUL MANUAL 27-09-05 AND RETURNED TO SERVICE.