Beech K35 accident near Flagstaff, Arizona, January 20, 1984
On January 20, 1984 at about 9:50 pm local time, a Beech K35, registered N9510R, was substantially damaged in an accident near Flagstaff, Arizona. It was a business flight under general aviation rules (Part 91). No one was hurt; 4 people were on board or involved. The weather was visual conditions (good weather).
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The NTSB's probable cause their words, unchanged
The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.
Source: NTSB aviation accident database, copy made October 4, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- January 20, 1984 · about 9:50 pm local time
- Place
- Flagstaff, Arizona · map
- Type
- Accident
- Injuries
- No one was hurt; 4 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Beech K35 · all K35s on the register
- Registration
- N9510R · registry record · serial D6060
- Damage
- Substantial damage
- Flight
- Business flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
CRUISING AT 10,500 FT THE NUMBER 5 CYLINDER SEPARATED FROM THE ENGINE ASS'Y CAUSING THE LOSS OF POWER. DURING THE FORCED LDG ROLL THE ACFT COLLIDED WITH A SNOW COVERED LOG COLLAPSING THE NOSE GEAR. THE ENGINE WAS OVERHAULED IN 1980. 1,239 HRS OF OPERATION HAD BEEN RECORDED SINCE THE OVERHAUL.
The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.
The factual record from the NTSB's investigation tables, in plain English
Pilot
- Certificate: commercial pilot
- Ratings: single-engine land; instrument: helicopter; rotorcraft: helicopter
- Flight time: 1,730 hours in all; 96 in this make and model; 55 in the last 90 days; 1,500 as pilot in command
- Medical certificate: Class 2 (valid medical--no waivers/lim.)
- Seat: left
The aircraft
- Airframe total time: 4,565 hours
- Last inspection: annual inspection, September 2, 1983; 76 hours since
- Maximum gross weight: 2,960 lb
- Seats: 4
- Landing gear: retractable
- Engine: Continental IO-470-C (piston); 0 hours total
The flight
- Departed from: SDL Scottsdale AZ at 8:30 pm
- Destination: SDL Scottsdale CA
- Flight plan: VFR
- Runway 0
Weather at the time
- Light: daylight
- Visibility: 100 statute miles
- Sky: scat at 25,000 ft
- Temperature: 30°F (-1°C), dew point 0°F (-18°C)
- Observation at 2:50 pm
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 | |||
| Passengers | 3 |
About this page
Everything above comes from the NTSB's public accident database: the narrative, probable cause and findings are the NTSB's own words, and the coded tables behind its report (pilot, aircraft, flight, weather, injuries, sequence of events) are written out in plain English. Pilots' ages, home towns and medical details are left out on purpose. The docket at the NTSB holds the report as a PDF and the investigation's photographs and documents. This site never names pilots, passengers or anyone else involved. A preliminary report describes what is known soon after the event and can change; the final report, with the probable cause, usually follows one to two years later and this page is refreshed when it does. Case number LAX84LA162.