# NTSB SEA94LA244: I.C.A. Brasov IS-28B2, N28KG, Bozeman, MT, September 10, 1994

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 10, 1994, 14:00 local (20:00 UTC)
- Place: Bozeman, MT
- Coordinates: 45.260021, -111.319152 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=45.2600&lon=-111.3192&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report May 9, 1995
- Report: Approved by Office Director
- NTSB case key (mKey): 42028
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA94LA244
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/42028/pdf
- Page: https://openairdocs.org/ntsb/SEA94LA244

## Probable cause

THE STUDENT PILOT'S IMPROPER COMPENSATION FOR WIND. THE CROSSWIND WAS A FACTOR.

## Sequence of events

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

- On ground/water collision with object, landing - roll
  - compensation for wind conditions - improper, pilot in command (cause)
  - directional control - not maintained, pilot in command
  - weather condition - crosswind (cause)
- On ground/water collision with object, landing - roll

## Analysis

WHILE LANDING IN AN EIGHT KNOT CROSSWIND, THE STUDENT PILOT WAS UNABLE TO MAINTAIN DIRECTIONAL CONTROL OF THE GLIDER. HIS REMEDIAL ACTION TO KEEP THE AIRCRAFT FROM EXITING THE RUNWAY DURING THE LANDING ROLL WAS UNSUCCESSFUL, AND THE AIRCRAFT DEPARTED THE SIDE OF THE RUNWAY. AFTER EXITING THE RUNWAY, THE AIRCRAFT IMPACTED A NEARBY WIND-SOCK POLE.

## Factual narrative

On September 10, 1994, approximately 1400 mountain daylight time (MDT), an I.C.A. Brasou IS-28B2 glider, N28KG, collided with a pole after running off the side of the runway during the landing roll at Gallatin Field, Bozeman, Montana. The student pilot was not injured, but the aircraft sustained substantial damage. The FAR Part 91 solo instructional flight, which was being operated in visual meteorological conditions, had departed the same location about 20 minutes prior to the accident. No flight plan had been filed, and there was no report of an ELT activation.

According to the FAA inspector who reported the accident to the NTSB, the student pilot, who was landing in an eight knot crosswind, was unable to maintain directional control of the aircraft as it began to slow during the landing roll. As the aircraft began to drift off the runway, the pilot attempted remedial action, but the aircraft ran off the side of the runway and impacted the pole upon which the wind-sock hung.

The accident, which took place on September 10, was reported to the NTSB on September 20.

## Aircraft

- Registration: [N28KG](https://openairdocs.org/deregistered/N28KG-2014-10-07), registration cancelled 2014-10-07, S/N 156, built 1979 (OpenAirDocs)
- Reported make and model: I.C.A. Brasov IS-28B2
- Registry model: [I.C.A.-Brasov IS-28B2](https://openairdocs.org/model/i-c-a-brasov-is-28b2) (registry code 4490102) (OpenAirDocs)
- Registry engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999) (OpenAirDocs)
- Category: Glider
- Serial number: 156
- Airframe hours: 900
- Engines: unknown
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Registered owner: Roger I. Stradley
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, July 1, 1994, 50 hours before
- Airport: BZN, Gallatin Field, runway 3, 3,000 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 39; student; medical: unknown; seat: front; flight hours: 26 total, 26 in this make and model, 7 as pilot in command, 10 in the last 90 days, 9 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 270° at 8 knots
- Visibility: 30 statute miles
- Lowest ceiling: none
- Temperature: 81 °F

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19940910035319A](https://openairdocs.org/incident/19940910035319A), Sep 10, 1994: Brasov IS28B2, Bozeman, MT, Substantial damage. Lost directional control landing in crosswind. Struck windsock pole.

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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