Friday, April 26, 2019

Mooney M29F Executive 21, N2926M: Incident occurred April 25, 2019 -and- Accident occurred August 02, 2013 at Helena Regional Airport (KHLN), Montana

Federal Aviation Administration / Flight Standards District Office; Helena, Montana

April 25, 2019:  Gear up landing.

Date: 25-APR-19
Time: 17:53:00Z
Regis#: N2926M
Aircraft Make: MOONEY
Aircraft Model: M20F
Event Type: INCIDENT
Highest Injury: NONE
Aircraft Missing: No
Damage: MINOR
Activity: UNKNOWN
Flight Phase: LANDING (LDG)
Operation: 91

Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Helena, Montana

Aviation Accident Final Report - National Transportation Safety Board:

Investigation Docket - National Transportation Safety Board:

Aviation Accident Data Summary - National Transportation Safety Board:

Location: Helena, MT
Accident Number: WPR13CA355
Date & Time: 08/02/2013, 0940 MDT
Registration: N2926M
Aircraft: MOONEY M20F
Aircraft Damage: Substantial
Defining Event: Runway excursion
Injuries: 2 None
Flight Conducted Under: Part 91: General Aviation - Instructional


The  flight instructor reported that the purpose of the flight was for the pilot-undergoing instruction  to perform touch-and-go practice takeoffs and landings. During the approach, the airplane was slightly fast and touched down about halfway down the runway. The instructor thought the pilot could still successfully complete a takeoff and monitored him as he retracted the flaps. As the airplane continued down the runway, the instructor decided that the airplane’s climb performance would not be sufficient to clear obstacles at the end of the runway and he opted to abort the takeoff. The instructor retarded the throttle lever to the closed position and told the pilot to apply maximum braking pressure. The airplane subsequently went off the end of runway into a grass field and continued about 100 feet before impacting a chain-link fence. During the accident sequence, the wing spar was substantially damaged.

The airplane’s brake pedals were only accessible to the left-seated person, which is where the pilot was positioned. The instructor reported no mechanical malfunctions or failures with the airplane that would have precluded normal operation. He additionally stated that this accident could have been prevented by making a timely decision to go-around when it was apparent that the airplane was going to touchdown further down the runway. 

Probable Cause and Findings

The National Transportation Safety Board determines the probable cause(s) of this accident to be:
The flight instructor's  delayed decision to instruct the pilot to abort the landing which resulted in  a runway excursion and collision with a fence.


Personnel issues
Monitoring other person - Instructor/check pilot (Cause)
Delayed action - Instructor/check pilot (Cause)

Environmental issues
Fence/fence post - Not specified

Factual Information

History of Flight

Takeoff-rejected takeoff
Runway excursion (Defining event) 

Flight Instructor Information

Certificate: Airline Transport; Flight Instructor
Age: 54
Airplane Rating(s): Multi-engine Land; Single-engine Land
Seat Occupied: Right
Other Aircraft Rating(s): None
Restraint Used: Seatbelt, Shoulder harness
Instrument Rating(s): Airplane
Second Pilot Present: Yes
Instructor Rating(s): Airplane Multi-engine; Airplane Single-engine; Instrument Airplane
Toxicology Performed:
Medical Certification: Class 3 With Waivers/Limitations
Last FAA Medical Exam: 07/12/2012
Occupational Pilot: Yes
Last Flight Review or Equivalent:
Flight Time: 4509 hours (Total, all aircraft), 265 hours (Total, this make and model)

Pilot Information

Certificate: Private
Age: 35
Airplane Rating(s): Single-engine Land
Seat Occupied: Left
Other Aircraft Rating(s): None
Restraint Used: Seatbelt, Shoulder harness
Instrument Rating(s): None
Second Pilot Present: Yes
Instructor Rating(s): None
Toxicology Performed: 
Medical Certification: Class 3 Without Waivers/Limitations
Last FAA Medical Exam: 07/27/2010
Occupational Pilot: No
Last Flight Review or Equivalent:
Flight Time: 137 hours (Total, all aircraft), 7 hours (Total, this make and model)

Aircraft and Owner/Operator Information

Aircraft Make: MOONEY
Registration: N2926M
Model/Series: M20F
Aircraft Category: Airplane
Year of Manufacture:
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 22-1282
Landing Gear Type: Tricycle
Seats: 4
Date/Type of Last Inspection:
Certified Max Gross Wt.:
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time:
Engine Manufacturer: LYCOMING
Engine Model/Series: IO360 SER A&C
Registered Owner: Brent Vetter
Rated Power: 200 hp
Operator: On file
Operating Certificate(s) Held:None  

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation:
Distance from Accident Site:
Observation Time:
Direction from Accident Site:
Lowest Cloud Condition: Clear
Visibility:  10 Miles
Lowest Ceiling: None
Visibility (RVR):
Wind Speed/Gusts: Light and Variable /
Turbulence Type Forecast/Actual: /
Wind Direction: Variable
Turbulence Severity Forecast/Actual: /
Altimeter Setting:
Temperature/Dew Point: 24°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Helena, MT (HLN)
Type of Flight Plan Filed: None
Destination: Helena, MT (HLN)
Type of Clearance: None
Departure Time:  MDT
Type of Airspace:

Airport Information

Airport: Helena Regional Airport (HLN)
Runway Surface Type: Asphalt
Airport Elevation: 3878 ft
Runway Surface Condition: Dry
Runway Used: 34
IFR Approach: None
Runway Length/Width: 2988 ft / 75 ft
VFR Approach/Landing: Touch and Go; Traffic Pattern

Wreckage and Impact Information

Crew Injuries: 2 None
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 2 None
Latitude, Longitude: 46.606667, -111.982500 (est)


  1. the instructor should be teaching his students to go-around long before this if they weren't going to touch down until halfway down the runway, it should have been a go-around...

  2. The Mooney in takeoff configuration has 15 degrees of flaps when he initiated the climb an retracted the flaps all the way he lost a lot of his climb performance I’m guessing. I have @1000 hours in m20 series