# NTSB DEN82DA179: Beech A23-19, Helena, MT, August 30, 1982

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: August 30, 1982, 13:45 local (19:45 UTC)
- Place: Helena, MT
- Coordinates: 46.530456, -112.210441 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=46.5305&lon=-112.2104&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report August 30, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 71005
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN82DA179
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/71005/pdf
- Page: https://openairdocs.org/ntsb/DEN82DA179

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Overrun, landing - roll
  - weather condition - crosswind (contributing factor)
  - weather condition - gusts (contributing factor)
  - compensation for wind conditions - improper, pilot in command (cause)
  - distance - misjudged, pilot in command (cause)
  - airspeed - misjudged, pilot in command (cause)
  - go-around - not performed, pilot in command (cause)
- On ground/water encounter with terrain/water, landing
  - terrain condition - ditch (contributing factor)
  - terrain condition - rough/uneven (contributing factor)
  - maneuver - performed, pilot in command

## Analysis

ACCORDING TO A WITNESS, THE PILOT WAS ATTEMPTING TO LAND ON A DIRT ROAD THAT IS ALSO USED AS A LANDING STRIP. THE AIRCRAFT TOUCHED DOWN APPROXIMATELY 1500 FEET AT THE DOWNHILL END OF THE RUNWAY, BALLOONED BY A WIND GUST AND MOVED TO THE EAST EXTREME OF THE RUNWAY. THE PILOT ADDED POWER AND TOUCHED DOWN AGAIN AND BALLOONED. THE PILOT STATED THAT HE DID NOT HAVE ENOUGH DISTANCE TO STOP BEFORE THE END OF THE RUNWAY. HE APPLIED POWER TO AVOID A DITCH AND LANDED IN A FIELD. THE PILOT ESTIMATED THAT THE WIND WAS FROM 300 DEG AT 8 GUSTING 20 KTS.

## Aircraft

- Registration: CFSPV (not matched to a registry record)
- Reported make and model: BEECH A23-19
- Category: Airplane
- Serial number: MB74
- Airframe hours: 2403
- Engines: LYCOMING O-320-E2C 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Part 91
- Operator: Cliff Mask
- Registered owner: Ben Mask
- Departed: HLN, HELENA, MT
- Destination: WILHELM RANCH, MT
- Airport: Wilhelm Ranch, runway 35, 4,000 × 0 ft, dirt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 44; commercial; airplane ratings: single-engine land; medical: class 1, valid medical--no waivers/lim.; flight hours: 1,825 total, 953 in this make and model, 1,825 as pilot in command, 69 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 300° at 8 knots
- Visibility: 40 statute miles
- Temperature: 156 °F
- Altimeter: 30.00 inHg
- Observed at: HLN, 8 nm away

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.

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