What was found
DENSITY CONTROLLER FAILED. RESULTED IN ROLLBACK OF ENGINE POWER TO ~30" MANIFOLD PRESSURE. LOSS OF TURBO BOOST. SUSPECTED PART WAS RETURNED TO LYCOMING FOR TESTING AND FOUND TO BE DEFECTIVE.
- Difficulty date
- July 25, 2024
- Submitted
- December 5, 2024
- Operation
- General aviation
- Aircraft
- N555GT
- Make and model
- Piper PA31350
- Aircraft serial
- 317952148
- Aircraft time
- 10,600 hours
- Engine
- Lyc LTIO540J2B
- Engine time
- 411 hours
- System (JASC)
- 8560 · Reciprocating Engine Supercharger
- Part
- Wastegate Valve
- Part number
- LW1684085
- Part serial
- HYK000122
- Condition
- Perforated
- Location
- Zone 400
- Part time
- 411 hours
- Stage of operation
- CL
- How discovered
- C
- Nature of condition
- R
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.