What was found
(CAN) PILOT REPORTED THAT AUTOPILOT CAUSING ACFT TO PORPOISE ON DESCENT FROM 18,000 FT (WHEN BARO RESET), THEN GOES AWAY. REPLACED ENCODING ALTIMETER AND PROBLEM SOLVED.
- Difficulty date
- August 18, 2008
- Submitted
- November 3, 2008
- Operation
- General aviation
- Make and model
- Pilats PC1245
- Aircraft time
- 4,577 hours
- Engine
- Pwa PT6A67B
- Propeller
- Hartzl HCE4A3D
- System (JASC)
- 3416 · Altimeter, Barometric/Encoder
- Part
- Altimeter
- Part number
- 066030620010
- Condition
- Defective
- Stage of operation
- DE
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.