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Accidents · NTSB SEA07LA250 · Final report

Schweizer SGS 2-33 accident near Morgan, Utah, August 31, 2007

On August 31, 2007 at about 7:50 pm local time, a Schweizer SGS 2-33 (glider), registered N5731S, was substantially damaged in an accident near Morgan, Utah (Morgan County Airport). It was an instructional flight under general aviation rules (Part 91). 1 person was seriously injured; 1 other was unhurt. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The pilot's failure to maintain control of the glider while maneuvering on final approach to landing, which resulted in an collision with a tree. A factor was the wind gust.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
August 31, 2007 · about 7:50 pm local time
Place
Morgan, Utah · Morgan County Airport · map
Type
Accident
Injuries
1 person was seriously injured; 1 other was unhurt.
Weather
visual conditions (good weather)
Aircraft
Schweizer SGS 2-33 · all SGS 2-33s on the register
Registration
N5731S · no longer on the register · serial 74
Damage
Substantial damage
Flight
Instructional flight · general aviation rules (Part 91)

The NTSB's narrative final · quoted from the NTSB record

On short final the glider encountered a gust of wind, which lifted the tail and rolled the aircraft to the right. The glider's right wing subsequently impacted a tree off the right side of the runway, flipping it over before coming to rest inverted. The wind at the time of the accident was estimated to be from 240 degrees and between 10 to 15 knots.

The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.

The factual record from the NTSB's investigation tables, in plain English

Flight instructor

  • Certificate: flight instructor, commercial pilot
  • Ratings: single-engine land; instructor: airplane single-engine; instructor: glider; instrument: airplane; rotorcraft: glider
  • Flight time: 526 hours in all; 137 in this make and model; 51 in the last 90 days; 13 in the last 30 days; 458 as pilot in command; 138 on instruments
  • Medical certificate: Class 2 (with waivers/limitations)
  • Seat: rear
  • Injury: no injuries

Dual student

  • Flight time: 3 hours in all; 3 in this make and model; 3 in the last 90 days; 3 in the last 30 days
  • Medical certificate: None
  • Seat: frt
  • Injury: serious injuries

The aircraft

  • Airframe total time: 4,144.1 hours
  • Last inspection: annual inspection, July 1, 2007
  • Maximum gross weight: 1,040 lb
  • Seats: 2
  • Landing gear: fixed

The flight

  • Departed from: 42U Morgan UT at 7:00 pm
  • Destination: 42U Morgan UT
  • Flight plan: none
  • Runway 21, 3,900 ft by 50 ft
  • A second pilot was aboard

Weather at the time

  • Light: daylight
  • Wind: from 240° at 10 knots
  • Visibility: 10 statute miles
  • Sky: scat
  • Temperature: 84°F (29°C), dew point 48°F (9°C)
  • Altimeter: 30.19 inHg

Injuries

FatalSeriousMinorNone
Crew11

Documents from the investigation the NTSB's docket: the evidence folder behind the report

The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.

Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.