Beech A35 accident near Mazama, Washington, July 11, 2015
On July 11, 2015 at about 11:00 pm local time, a 1949 Beech A35, registered N8749A, was destroyed in an accident during enroute (cruise) near Mazama, Washington. It was a personal flight under general aviation rules (Part 91). 2 people were killed and 1 person was seriously injured. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
The noninstrument-rated pilot’s decision to continue visual flight into instrument meteorological conditions, which resulted in his failure to maintain clearance from mountainous terrain.
Source: NTSB aviation accident database, copy made November 2, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- July 11, 2015 · about 11:00 pm local time · cases in 2015
- Place
- Mazama, Washington · map
- Type
- Accident
- Injuries
- 2 people were killed and 1 person was seriously injured.
- Weather
- visual conditions (good weather)
- Aircraft
- Beech A35, built 1949 · all A35s on the register
- Registration
- N8749A · no longer on the register · serial D-2171
- Damage
- Destroyed
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
A review of recorded communications between the pilot and a flight service station revealed that, before the flight, the noninstrument-rated, private pilot received two formal weather briefings. Both briefings reported that visual flight rules (VFR) conditions existed at the departure and destination airports but included forecast weather conditions along the route of flight that called for areas of mountain obscuration and precipitation. During the first briefing, the pilot disclosed that he had recently acquired a new tablet and that he was still learning how to use it. He also acknowledged that he would not be able to fly instrument flight rules if it became necessary. The pilot postponed his departure after the first briefing, but he and two passengers departed for the cross-country personal flight under VFR about 2 hours after the second briefing. The surviving passenger reported that, about 1 1/2 hours into the flight, the cloud coverage increased and that the pilot started to descend the airplane to stay clear of clouds; however, the airplane entered a cloud. At that time, the other passenger was using the pilot's tablet to help him navigate the airplane, but she accidentally turned it off. Shortly after, the surviving passenger observed trees directly in front of the windshield. The pilot pulled back on the yoke to try and gain altitude, but the airplane impacted mountainous terrain at an elevation of about 5,255 ft mean sea level. The wreckage was confined to the impact area, and the damage was consistent with controlled flight into terrain. A postaccident examination of the airframe and engine revealed no evidence of preimpact mechanical malfunctions or failures that would have precluded normal operation. A review of satellite imagery indicated cloudy conditions over the accident location. Given the passenger's statement, the flight likely encountered instrument meteorological conditions, and the pilot was unable to see the mountainous terrain until seconds before the collision.
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
What happened, in order
- VFR encounter with IMC during enroute (cruise)
- Loss of visual reference during enroute (cruise)
- Controlled flight into terrain or object (CFIT) during enroute (cruise) defining event
The NTSB's findings
- cause Personnel issues › Action/decision › Info processing/decision › Decision making/judgment › Pilot
- cause Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Altitude › Not attained/maintained
- cause Environmental issues › Conditions/weather/phenomena › Ceiling/visibility/precip › Below VFR minima › Effect on operation
- cause Environmental issues › Conditions/weather/phenomena › Ceiling/visibility/precip › Clouds › Effect on operation
- cause Environmental issues › Physical environment › Terrain › Mountainous/hilly terrain › Awareness of condition
Pilot
- Certificate: private
- Ratings: single-engine land
- Flight time: 242 hours in all; 0 in the last 90 days
- Medical certificate: Class 3 (with waivers/limitations)
- Seat: rgt
- Injury: fatal
Passenger
- Seat: left
- Injury: fatal
Passenger
- Seat: rgt
- Injury: serious injuries
The aircraft
- Last inspection: inspection type not recorded
- Maximum gross weight: 2,652 lb
- Seats: 4
- Landing gear: retractable
- Engine: Continental E-225-8 (piston); 0 hours total
- Fire on the ground
The flight
- Departed from: S27 Kalispell MT at 7:00 pm
- Destination: 38W Lynden WA
- Flight plan: VFR
Weather at the time
- Light: daylight
- Wind: from 190° at 8 knots
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 84°F (29°C), dew point 52°F (11°C)
- Altimeter: 29.73 inHg
- Observation at 10:53 pm from OMK, 47 miles away
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 1 | |||
| Passengers | 1 | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
8 documents, released by the NTSB on April 8, 2016. View them here, or download them; the NTSB redacts some personal details before release, and this site shows the NTSB's own titles rather than its file names.
| # | Document | What it is | |
|---|---|---|---|
| 1 | Meteorology | PDF, 10 pages | View Download |
| 2 | Witness Statement | PDF, 2 pages | View Download |
| 3 | Fss Weather Brief | PDF, 52 pages | View Download |
| 4 | Cmi Engine Report | PDF, 17 pages | View Download |
| 5 | Release of Aircraft Wreckage, NTSB Form 6120.15 | PDF, 1 page | View Download |
| 6 | Toxicological Report | PDF, 1 page | View Download |
| 7 | Statement of Party Representatives to NTSB Investigation | PDF, 2 pages | View Download |
| 8 | Photos | PDF, 4 pages | View Download |
The same docket at the NTSB · documents without a copy here are fetched from the NTSB when you open them.
Connections how this case links to the rest of the register
- N8749A: not on the register today · the record of its deregistration
- Beechcraft A35 159 registered today · the model family and its accident history
- Beechcraft 6 aircraft on the register
- Engine: Continental E-225-8 7 aircraft carry this series today · as the NTSB recorded it
- Kalispell City Airport · departed from
- Lynden Muni/Jansen Field · bound for
- Accidents and incidents in Washington 2,713 since 1982 · 362 in the last ten years
- Washington 10,580 aircraft registered
The whole map of how records connect · these connections as data: /graph/accident/WPR15FA212.json.
The bigger picture in Aviation Analytics: accidents over time since 1982, by model, by phase of flight and conditions, by place and on the map.
Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text does not name anyone involved, its policy at this time. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.
