- Difficulty date
- May 4, 2001
- Submitted
- May 7, 2001
- Operation
- Air carrier
- Aircraft
- N743DH
- Make and model
- Boeing 727225
- Aircraft serial
- 22438
- Part
- Coupler
- Condition
- Faulty
- Location
- Autopilot Sys
- Stage of operation
- AP
- How discovered
- O
- Nature of condition
- F
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON APPROACH WITH AUTOPILOT ENGAGED, FELT UNCOMMANDED RUDDER INPUTS. DISENGAGED AUTOPILOT AND 30 SECONDS LATER INPUTS STOPPED. CORRECTIVE ACTION - DEFERRED YAW DAMPERS PER DHL MEL 22-6. PLACARD INSTALLED. R&R LOWER YAW COUPLER. PERFORMED BITE TEST IAW MM 22-31-3. OPS CKS GOOD.