SEA95LA069

NTSB accident investigation · Scheibe Flugzeugbau Bergfalke II-55 · Bozeman, MT · March 18, 1995

Accident · No injuriesLimited investigationFinal report
Date
March 18, 1995, 12:00 local (19:00 UTC)
Place
Bozeman, MT
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N5924Scheibe Flugzeugbau Bergfalke II-55
Weather
Visual (VMC) · Day
Status
Completed · report October 26, 1995
Report
Approved by Office Director
FAA report
19950318004349A
Case key
42125

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 misjudged his altitude and distance from the runway. A factor was the pilot's failure to obtain the current altimeter setting.

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.

UndershootApproach - vfr pattern - base leg/base to final
Altimeter setting - improperPilot in commandFactor
Distance/altitude - misjudgedPilot in commandCause
In flight collision with terrain/waterApproach - vfr pattern - base leg/base to final

Analysis

While in the traffic pattern for landing, the pilot stated that he relied on the altimeter to determine elevation, even though he felt that he was low. While turning base to final approach, the pilot realized that he was too low and was not going to make the runway. During a left turn to maneuver to an access road, the left wing contacted the ground and the glider spun around before coming to rest. After the accident, the pilot stated that he did not get the current altimeter setting from the fss before landing, and noted that the altimeter reading was 170 ft higher than field elevation.

Factual narrative

On March 18, 1995, at 1200 mountain standard time, a Scheibe Bergfalke II-55, N5924, collided with the terrain short of runway 21 at Bozeman, Montana. Visual meteorological conditions prevailed at the time and no flight plan was filed for the local instructional flight. The glider was substantially damaged and the private pilot, the sole occupant, was not injured.

The pilot reported that the purpose of the flight was a solo flight to accumulate time for the glider rating. After gliding for approximately two hours, the pilot returned to the airport for landing. While in the traffic pattern, the pilot reported that he relied on the altimeter to determine the gliders elevation, even though the pilot stated that he felt low. While turning from the base leg to final approach, the pilot stated that the glider was too low and that he was not going to make the runway. The pilot selected an access road and during the left turn, the left wing collided with the ground. The glider spun around before coming to rest.

After the accident, the pilot noted that the altimeter read 4,650 feet. The field elevation is 4,480. The pilot stated that before take off he had set the altimeter to field elevation, however, he did not reset the altimeter for the landing.

Runway advisory services are available for the airport. The pilot stated that he got the wind direction and speed, but did not ask or receive the current altimeter setting for the landing.

Aircraft

Registration
N5924
Reported as
Scheibe Flugzeugbau Bergfalke II-55 (BERGFALKE)
Category
Glider
Serial number
85
Engine
unknown
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Stradley, Roger, doing business as Gallatin Flying Service
Registered owner
Agricola Pennatus
Airworthiness certificate
Standard, Normal
Airport
BZN · Gallatin Field, runway 21, 2,650 × 60 ft, asphalt

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
33
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Front
Flight hours
101 total · 11 in this make and model · 36 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
350° at 5 knots
Visibility
30 statute miles
Lowest ceiling
12,000 ft broken
Temperature
52 °F, dew point 27 °F
Altimeter
29.00 inHg
Observed at
BZN

FAA reports on this event · 1

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

Other investigations on N5924 · 2

Matched to the same aircraft by N-number and date.