LAX08CA173

NTSB accident investigation · Beech A36 · Ryegate, MT · June 26, 2008

Accident · Minor injuriesData collectionFinal report
Date
June 26, 2008, 17:00 local (23:00 UTC)
Place
Ryegate, MT
Injuries
1 minor, 2 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N824CBeech A36
Defining event
Initial climb: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed · report July 30, 2008
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20080626839469A
Case key
68248

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The pilot's failure to abort the takeoff when the ground roll acceleration profile was determined to be insufficient for takeoff. Contributing to the accident was the shifting wind conditions.

Findings · 5

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Wind: sudden wind shiftEnvironmental issues › Conditions/weather/phenomena · Contributed to outcomeRaytheon A36: 1 caseAll aircraft: 114 casesProbable cause
Performance/control parameters: airspeedAircraft › Aircraft oper/perf/capability · Not attained/maintainedRaytheon A36: 2 casesAll aircraft: 1,681 cases
Action: lack of actionPersonnel issues › Action/decision · PilotRaytheon A36: 1 caseAll aircraft: 792 casesProbable cause
Object/animal/substance: tree(s)Environmental issues › Physical environment · Not specifiedRaytheon A36: 2 casesAll aircraft: 933 cases

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot reported that prior to departure he checked the weather and performed a preflight inspection. He observed the direction of the windsock, and stated that it favored a takeoff from runway 23. He completed an uneventful run-up, and began the takeoff roll. Halfway down the turf runway he observed the airplane's airspeed to be indicating 60 knots. He stated that at this point on the takeoff roll he expected the airspeed to have reached 70 knots. The airplane continued to accelerate to 65 knots, and with the end of the runway approaching, the pilot 'forced' the airplane airborne and retracted the landing gear. The airplane settled to the ground and then collided with trees at the end of the runway. The pilot observed the wind direction after the accident, and noted that it was out of the northeast. He opined that the airplane had encountered a sudden wind shift or downdraft during the takeoff roll.

Factual narrative

The pilot reported that prior to departure he checked the weather and performed a preflight inspection. He observed the direction of the windsock, and stated that it favored a takeoff from runway 23. He completed an uneventful run-up, and began the takeoff roll. Halfway down the turf runway he observed the airplane's airspeed to be indicating 60 knots. He stated that at this point on the takeoff roll he expected the airspeed to have reached 70 knots. The airplane continued to accelerate to 65 knots, and with the end of the runway approaching, the pilot 'forced' the airplane airborne and retracted the landing gear. The airplane settled to the ground and then collided with trees at the end of the runway. The pilot observed the wind direction after the accident, and noted that it was out of the northeast. He opined that the airplane had encountered a sudden wind shift or downdraft during the takeoff roll.

Aircraft

Registration
N824C
Reported as
Beech A36
Category
Airplane
Serial number
E-3338
Airframe hours
1,060
Engine
Continental IO-550, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Jimmie N Crump
Airworthiness certificate
Standard, Utility; Standard, Normal
Last inspection
100 hour · February 1, 2008 · 32.1 hours before
Departed
3MT3 · Ryegate, MT
Destination
BZN · Bozeman, MT
Airport
3MT3 · Three Cross Ranch Airport, runway 23, 2,850 × 60 ft, grass/turf

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
68
Injuries
Minor
Certificate
Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Without waivers/limitations
Last flight review
September 1, 2006
Seat
Left
Flight hours
30,000 total · 1,200 in this make and model · 42 in the last 90 days · 13 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
Variable at 3 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
82 °F, dew point 36 °F
Altimeter
29.80 inHg
Observed at
BIL, 39 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.