What was found
AFTER INITIAL INSTALL AIRCRAFT WAS ON CHECK FLIGHT, IN ALTITUDE HOLD, AIRCRAFT PORPOISES. IT WAS DETERMINED THAT THE PITCH COMPUTER WAS THE CAUSE. UNIT WAS REMOVED FOR ANALYSIS.
- Difficulty date
- February 20, 2001
- Submitted
- March 13, 2001
- Operation
- Air carrier
- Aircraft
- N4434D
- Make and model
- Piper PA31350
- Aircraft serial
- 317552020
- Engine
- Lyc TIO540J2BD
- System (JASC)
- 2211 · Autopilot Computer
- Part
- Computer
- Part number
- 011033T
- Part serial
- 5325
- Condition
- Unserviceable
- Location
- Pitch Control
- 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.