# Accident 19950121000619A: Bacon Roger D QUESTAIR VENTURE LX, Des Moines, IA, January 21, 1995

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: January 21, 1995, 15:37 local time
- Place: Des Moines, IA
- Damage: Destroyed
- Location: 41.5292° N, 93.6596° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=41.5292&lon=-93.6596&mi=10
- Aircraft: N4QV, a cancelled registration (https://openairdocs.org/deregistered/N4QV-1997-03-24) (OpenAirDocs)
- Registry model: Bacon Roger D QUESTAIR VENTURE LX (registry code 05618LX, https://openairdocs.org/model/bacon-roger-d-questair-venture-lx) (OpenAirDocs)
- People aboard: 2
- Fatal injuries: 2
- NTSB investigation: [NTSB CHI95FA071](https://openairdocs.org/ntsb/CHI95FA071) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19950121000619A

## Narrative

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

AIRCRAFT MADE EMERGENCY LANDING. INDICATED A DEAD STICK WAS PROBABLE, CLEARED TO LAND. IMPACTED FROZEN GROUND. (-4)THE PRIVATE PILOT DECLARED AN EMERGENCY WHILE AT 16,000 FEET IN VFR CONDITIONS OVERHEAD THE 9,000 FOOT RUNWAY.  DURING THE DESCENT HE STATED HIS ENGINE RAN ROUGH, THEN SMOOTHED OUT.  APPROXIMATELY 4,000 FT AGL HE STATED HE 'HAD A MAJOR PROBLEM...COMING DOWN.'  WITNESSES DESCRIBED THE AIRPLANE IN A STEEP DESCENT, THEN ENTERING A SPIN AT APPROXIMATELY 1,000 FT AGL. THE AIRPLANE IMPACTED 3/4 MILE SHORT OF THE RUNWAY.  TESTING REVEALED THE CRANKSHAFT FAILED IN 2 PLACES, BOTH WITH AREAS OF FATIGUE CRACKING.  THE FATIGUE ORIGIN WAS SUBSURFACE, THE SHAFT WAS MACHINED, NOT FORGED, AND HAD AN ESTIMATED 150 TO 200 HOURS IN OPERATION.  NO OTHER DISCREPANCIES WERE FOUND WITH THE AIRPLANE.

## 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 CHI95FA071](https://openairdocs.org/ntsb/CHI95FA071), Jan 21, 1995: Bacon QUESTAIR-VENTURE (N4QV), Des Moines, IA, destroyed, 2 fatal. Probable cause: The pilot's failure to maintain aircraft control during the emergency descent, resulting in a stall/spin. Factors were material defects in the material used to manufacture the crankshaft, resulting…

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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