SEA95LA181

NTSB accident investigation · Taylorcraft BC12D · St. Mary, MT · August 12, 1995

Accident · Serious injuriesLimited investigationFinal report
Date
August 12, 1995, 12:00 local (18:00 UTC)
Place
St. Mary, MT
Injuries
1 serious
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N43597Taylorcraft BC12D
Weather
Visual (VMC) · Day
Status
Completed · report January 29, 1996
Report
Approved by Office Director
FAA report
19950812024009A
Case key
42220

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

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Probable cause

The pilot-in-command's failure to maintain proper altitude while maneuvering in high, mountainous, terrain. The terrain and the downdrafts were factors.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

In flight encounter with weatherCruise
Weather condition - downdraftFactor
Hard landingLanding
Terrain condition - high terrainFactor
Terrain condition - mountainous/hillyFactor
Clearance - inadequatePilot in commandCause
Nose overLanding - roll

Analysis

Shortly after passing over a high mountain ridge in glacier national park, the pilot encountered severe downdrafts. He initiated a precautionary landing to a meadow. During the approach the aircraft continued to experience a high rate of descent until impacting the terrain and nosing over.

Factual narrative

On August 12, 1995, approximately 1200 hours mountain daylight time, a Taylorcraft BC12D, N43597, was destroyed during a hard landing following an inflight encounter with weather in Glacier National Park near St. Mary, Montana. The private pilot sustained serious injuries. Visual meteorological conditions prevailed and no flight plan had been filed. The flight, which was personal, was to have been operated under 14CFR91, and originated from Whitefish, Montana, approximately 1100 hours. The pilot reported that shortly after passing over a mountain ridge he encountered several extreme downdrafts and was unable to maintain altitude. He then executed a precautionary landing to a nearby meadow. He stated that during his landing "the downdrafts did not dissipate" and that the "rate of descent on final was severe, resulting in a hard touchdown which also overturned the aircraft." Glacier National Park service personnel, who examined the wreckage site, plotted the crash at 6,560 feet above sea level and approximately 1 mile northeast of a northwest/southeast oriented 8,000 foot high ridgeline (refer to attached report).

Aircraft

Registration
N43597
Reported as
Taylorcraft BC12D
Category
Airplane
Serial number
7256
Airframe hours
2,235
Engine
Continental A65-8, 65 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Operator
Terning, Nate, A.
Registered owner
Robertson, Aleck, D. (Trustee)
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 18, 1995 · 73 hours before
Departed
58S · Whitefish, MT
Destination
CTB · Cut Bank, MT

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
19
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
204 total · 183 in this make and model · 147 as pilot in command · 18 in the last 90 days · 18 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
140° at 6 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
63 °F, dew point 50 °F
Altimeter
29.00 inHg
Observed at
FCA, 31 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.