# NTSB SEA93LA005: Schweizer SSG 2-33A, N2763H, Heber City, UT, October 1, 1992

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: October 1, 1992, 14:30 local (20:30 UTC)
- Place: Heber City, UT
- Coordinates: 40.430149, -111.189292 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=40.4301&lon=-111.1893&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report July 26, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 42949
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA93LA005
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/42949/pdf
- Page: https://openairdocs.org/ntsb/SEA93LA005

## Probable cause

THE PROPER ALIGNMENT WAS NOT MAINTAINED BY THE PILOT.  A FACTOR RELATING TO THE ACCIDENT WAS THE SIGN LOCATED BESIDE THE RUNWAY.

## Analysis

THE PILOT ATTEMPTED TO MAKE AN AERO-TOW TAKEOFF IN THE FUSELAGE WHEEL LANDING GEAR EQUIPPED GLIDER WITH THE LEFT WING SKID ON THE RUNWAY.  THE ACFT DRIFTED LEFT AT THE BEGINNING OF THE TAKEOFF ROLL AND THE LEFT WING IMPACTED A TAXIWAY SIGN BESIDE THE RUNWAY WHEN THE ACFT REACHED ABOUT 5 MPH.

## Sequence of events

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

- On ground/water collision with object, takeoff - roll/run
  - object - sign (contributing factor)
  - proper alignment - not maintained, pilot in command (cause)

## Aircraft

- Registration: [N2763H](https://openairdocs.org/deregistered/N2763H-2015-03-06), registration cancelled 2015-03-06, S/N 513, built 1978 (OpenAirDocs)
- Reported make and model: SCHWEIZER SSG 2-33A
- Registry model: [Schweizer SGS 2-33A](https://openairdocs.org/model/schweizer-sgs-2-33a) (registry code 8051606) (OpenAirDocs)
- Registry engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000, none) (OpenAirDocs)
- Category: Glider
- Serial number: 513
- Airframe hours: 2128
- Engines: unknown
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Rowser, Leland C., doing business as High Valley Aviation
- Registered owner: Rowser, Leland C.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, September 28, 1992
- Airport: 36U, Heber Valley, runway 21, 6,900 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 36; private; medical: unknown; seat: front; flight hours: 185 total, 87 in this make and model, 165 as pilot in command, 18 in the last 90 days, 2 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 240° at 4 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 81 °F, dew point 36 °F
- Altimeter: 30.00 inHg
- Observed at: PVU, 20 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 (OpenAirDocs).

- [Accident 19921001046329A](https://openairdocs.org/incident/19921001046329A), Oct 1, 1992: Scwzer SGS233A, Heber, UT, Substantial damage. Elected make tow takeoff run without wing runner. Left wing down struck a taxiway sign. Released towline.

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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