What was found
IRREGULAR YAW INPUT. THIS WAS A LONG TERM CHRONIC PROBLEM DURING WHICH A TOTAL OF 7 YAW DAMPER COUPLERS WERE REPLACED. OF THESE, 5 HAD PROBLEMS WITH THE RATE GYROS. THE AIRCRAFT HAS FLOWN 60 DAYS WITHOUT A YAW DAMPER SYSTEM ANOMALLY.
- Difficulty date
- January 26, 1997
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N322UA
- Make and model
- Boeing 737322
- Aircraft serial
- 23954
- Engine
- Ge CFM56*
- System (JASC)
- 2210 · Autopilot System
- Part
- Coupler
- Condition
- Malfunctioned
- Location
- Yaw Damper
- Stage of operation
- NR
- Nature of condition
- F
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.