SDR UPS06647836

Service difficulty report · Servo · Boeing 767300

Difficulty date: August 30, 2006
Submitted: September 1, 2006
Operation: Air carrier
Aircraft: N306UP
Make and model: Boeing 767300
Aircraft serial: 27759
System (JASC): 2720 · Rudder Control System
Part: Servo
Condition: Malfunctioned
Location: Yaw Damper
Stage of operation: NR
How discovered: 9
Nature of condition: O
Precautionary procedure: O

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

What was found

UNCOMMANDED RUDDER YAW TWICE IN FLIGHT. R & R LT & RT YAW DAMPER SERVO IAW MM 22-21-02-4. LEAK CHECK RIGHT & LEFT YAW DAMPER SERVO PER TECH SERVICES. R&R RIGHT YAW DAMPER MODULE ASSY IAW MM 22-21-04-2. ALSO R&R LEFT YAW DAMPER MODULE ASSY AS PRECAUTIONARY. PERFORMED MCDP BITE TEST 09,30,40,69 PER MM 22-00-02-2 & FIM 22-21-00 YAW DAMPER SYSTEM BITE. NO FAULTS NOTED

More about the Boeing 767-300