# Incident 20000701035759I: Diamon DA20C1, Spanish Fork, UT, July 1, 2000

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: July 1, 2000, 12:29 local time
- Place: Spanish Fork, UT
- Airport: Spanish Fork Springville Airport
- Phase of flight: Normal Cruise
- Operating rules: General operating rules (Part 91)
- Location: 40.0198° N, 111.5508° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=40.0198&lon=-111.5508&mi=10
- Aircraft: N991CT, a cancelled registration (https://openairdocs.org/deregistered/N991CT-2021-04-05) (OpenAirDocs)
- Registry model: Diamond Aircraft Ind DA20-C1 (registry code 2990001, https://openairdocs.org/model/diamond-aircraft-ind-da20-c1) (OpenAirDocs)
- Registry engine: Continental 0-200 series (registry code 17020, https://openairdocs.org/engine/continental-0-200-series) (OpenAirDocs)
- Reported make and model: DIAMON DA20C1
- People aboard: 2
- Fatal injuries: 0
- Pilot flight hours: 170 total, 80 in this make and model, 40 in the last 90 days
- NTSB investigation: [NTSB DEN00IA133](https://openairdocs.org/ntsb/DEN00IA133) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20000701035759I

## Narrative

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

(-23)AIRCRAFT WAS IN CRUISE FLIGHT, EAST BOUND UP SPANISH FORK CANYON AT 9,500' WHEN THE PILOT EXPERIENCED A VIBRATION. HE IMMEDIATELY PERFORMED A 180' TURN TOWARDS SPANISH FORK, UT. AND WAS IN THE PROCESS OF SHUTTING DOWN THE ENGINE DUE TO THE SEVERE VIBRATION  WHEN THE PROPELLER DEPARTED THE AIRCRAFT.  HE ESTABLISHED A GLIDE TO SPANISH FORK AIRPORT AND LANDED WITHOUT INCIDENT.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB DEN00IA133](https://openairdocs.org/ntsb/DEN00IA133), Jul 1, 2000: Diamond Aircraft Industries 20C-1 (N991CT), Spanish Fork, UT, incident, minor damage. Probable cause: The company maintenance personnel's inadequate torquing procedures of the propeller attachment bolts which resulted in the fatigue failure of the propeller attachment bolts and the in-flight…

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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