# Incident 20001218031539I: Beech B60, Cedar City, UT, December 18, 2000

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: December 18, 2000, 19:14 local time
- Place: Cedar City, UT
- Airport: Cedar City Municipal
- Phase of flight: Normal Cruise
- Operating rules: General operating rules (Part 91)
- Location: 37.7010° N, 113.0989° W: Placed by OpenAirDocs at CEDAR CITY RGNL (CDC), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.7010&lon=-113.0989&mi=10
- Aircraft: N4675M, registered now (https://openairdocs.org/aircraft/N4675M) (OpenAirDocs)
- Registry model: Beech B-60 (registry code 1153605, https://openairdocs.org/model/beech-b-60) (OpenAirDocs)
- Registry engine: Lycoming TI0-541 series (registry code 41536, https://openairdocs.org/engine/lycoming-ti0-541-series) (OpenAirDocs)
- Reported make and model: BEECH B60
- Reported engine: LYC TIO541E1C4
- People aboard: 1
- Fatal injuries: 0
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20001218031539I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(-23) A/C AT FLIGHT LEVEL 27 WHEN THE PILOT EXPERIENCED A SUDDEN LOSS OF MANIFOLD PRESSURE. A LANDING WAS MADE AT THE CEDAR CITY AIRPORT WITHOUT INCIDENT. MAINTENANCE FOUND THAT THE TURBOCHARGER HAD FAILED. THE UNIT WAS SENT TO THE "FIREWALL FORWARD" REPAIR STATION (PP5R) FOR TEARDOWN. INSPECTION REVEALED THAT THE SHAFT HAD BROKEN OFF AT THE TURBINE WHEEL FRICTION WELD POINT AND DISPLAYED EVIDENCE OF FOREIGN OBJECT DAMAGE TO THE TURBINE BLADES. THIS DAMAGE CREATED EXCESSIVE VIBRATION IN THE SHAFT. SUSPECTING A PIECE OF BROKEN OFF EXHAUST VALVE PASSING THROUGH THE TURBINE, FIREWALL NOTIFIED THE OWNER AND MAINTENANCE ACTIVITY IN CDC OF THE FOD DAMAGE TO THE BLADES. THEY REQUESTED THAT A COMPRESSION TEST BE PERFORMED ON THE ENGINE CYLINDERS TO TEST THE BROKEN VALVE THEORY. THIS WAS ACCOMPLISHED SATISFACTORILY.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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