Cessna 425 accident near Helena, MT
On August 11, 2021, a Cessna 425 (airplane) was involved in an accident near Helena, MT. 3 people were seriously injured. Damage to the aircraft: substantial.
- Date
- August 11, 2021
- Place
- Helena, MT
- Aircraft
- Cessna 425 · Airplane
- Injuries
- 0 fatal, 3 serious, 0 minor
- Damage
- Substantial
- Position
- 46.740°N, 111.944°W
- NTSB ID
- 20210811103681
Official records · WPR21LA313
- Public docket: reports, statements and exhibits from the investigation
Air traffic control records
- Summary Of Pilot's Communications With Air Traffic Control: Document (PDF), on ntsb.gov
NTSB summary
On August 11, 2021, about 0900 mountain daylight time, a Cessna 425 Conquest 1, N783MB, sustained substantial damage when it was involved in an accident near Helena, Montana. The pilot and two passengers sustained serious injuries. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 business flight. The pilot stated that on the morning of the accident he refueled the airplane to full wing tanks by adding an additional 207 gallons of Jet A. Shortly thereafter, he departed from his home airport in Faribault, Minnesota and continued to his destination at a cruise altitude of 24,000 ft mean sea level. Air Traffic Control transmissions and automatic dependent surveillance-broadcast data indicate that, while en route at 0847:35, the pilot reported to an air traffic controller that the airplane had an engine [left engine] flame-out and requested a descent. The pilot opted to divert from the originally planned destination and contacted Helena approach control. He stated that the airplane was 16 miles from Helena and descending through 19,000 ft, advising the controller that he may need to lose altitude to land on runway 27. The controller responded that the pilot could maneuver north of the airport to align with the right base leg of the traffic pattern to the runway. At 0852:59 the pilot reported to the air traffic controller that he had an hour and a half of fuel on board and about 3 minutes later the airplane made a right turn to the north. At 0857:15, with the airplane about 7,900 ft msl, the pilot reported that the right engine experienced a loss of pow
Probable cause
A flameout of both engines due to fuel starvation for reasons that could not be determined due to the airplane’s damage.
More accidents in MT
- Pilatus PC-12/45, Mar 22, 2009
- Beech D18S, Jul 5, 1987
- Cessna 550, Dec 18, 1992
- Beech V35B, Jun 24, 1982
- Cessna 182C, May 12, 2007
Browse: Montana · Cessna aircraft
Source: NTSB aviation accident database (US government, public domain). Findings may be preliminary or later revised by the NTSB. Not a complete global record.
