# NTSB NYC88LA095: Stinson 108-1, N97979, Burlington, VT, February 28, 1988

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: February 28, 1988, 11:14 local (16:14 UTC)
- Place: Burlington, VT
- Location: 44.4720° N, 73.1533° W: Placed by OpenAirDocs at PATRICK LEAHY BURLINGTON INTL (BTV), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.4720&lon=-73.1533&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report January 24, 1990
- Report: Approved by Office Director
- NTSB case key (mKey): 36107
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC88LA095
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/36107/pdf
- Page: https://openairdocs.org/ntsb/NYC88LA095

## Sequence of events

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

- Loss of control - on ground/water, takeoff - roll/run
  - directional control - not maintained, dual student
  - landing gear,parking brake - locked (cause)
  - brakes(normal) - not possible, pilot in command(cfi)
- In flight collision with terrain/water, takeoff - roll/run
  - terrain condition - snowbank
- Nose over, takeoff - roll/run

## Analysis

THE FLIGHT WAS TAKING OFF FOR AN INSTRUCTIONAL FLIGHT IN THE LOCAL AREA. DURING GROUND RUN, THE AIRCRAFT VEERED TO THE LEFT AND THE PILOT WAS UNABLE TO BRING THE AIRCRAFT UNDER CONTROL. THE AIRCRAFT COLLIDED WITH A SNOWBANK AND FLIPPED INVERTED. THE AIRCRAFT WAS EQUIPPED WITH BRAKES ON ONLY THE LEFT SIDE. EXAMINATION OF THE AIRCRAFT SHOWED THE PARKING BRAKE PAWL HAD BECOME DISCONNECTED AND COULD RESULT IN LOCKING OF THE BRAKE MASTER CYLINDER PISTON FOLLOWING BRAKE APPLICATION.

## Aircraft

- Registration: [N97979](https://openairdocs.org/aircraft/N97979), registered now, S/N 108-979, built 1946 (OpenAirDocs)
- Reported make and model: STINSON 108-1
- Registry model: [Stinson 108-1](https://openairdocs.org/model/stinson-108-1) (registry code 9230404) (OpenAirDocs)
- Registry engine: [Franklin 6A4150 series](https://openairdocs.org/engine/franklin-6a4150-series) (registry code 27024, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 108-979
- Airframe hours: 1944
- Engines: FRANKLIN 6A4-150B3 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Robert Sterling
- Registered owner: Robert Sterling
- Airworthiness certificate: Standard, Utility
- Last inspection: Annual, June 1, 1987
- Departed: BTV, BURLINGTON, VT
- Airport: BTV, Burlington, runway 33, 7,807 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 45; commercial, flight instructor; airplane ratings: multi-engine sea, single-engine land, multi-engine land, single-engine sea; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: right; flight hours: 849 total, 95 in this make and model, 793 as pilot in command, 80 in the last 90 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Lowest ceiling: none
- Temperature: 36 °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 19880228070699A](https://openairdocs.org/incident/19880228070699A), Feb 28, 1988: Univar 1081, Burlington, VT, Substantial damage. Veered off runway on takeoff,struck a snowbank and flipped over. Parking brake actuating paul not installed. Jammed

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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