ASN Wikibase Occurrence # 284376
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| Date: | Saturday 25 August 2007 |
| Time: | 17:20 LT |
| Type: |  Flight Design CTSW |
| Owner/operator: | Private |
| Registration: | N775CT |
| MSN: | 05-05-01 |
| Total airframe hrs: | 459 hours |
| Engine model: | Rotax 912 ULS |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | St. George, Utah -
 United States of America
|
| Phase: | Unknown |
| Nature: | Private |
| Departure airport: | Salinas Municipal Airport, CA (SNS/KSNS) |
| Saint George Municipal Airport, UT (SGU/KSGU) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot had just purchased the special light sport airplane and was flying it cross country to his home. He had received several hours of flight training and completed a flight review in the airplane the day before the accident. The accident flight was uneventful until about 20 miles from the destination, at which point the engine began to run rough. The pilot determined that the choke had "worked its way back about 3/4 of an inch." He "eased" the choke off and the engine roughness stopped. The engine lost complete power about 5 miles from the destination as the pilot entered the downwind leg for landing on runway 16. The pilot reported that he attempted to glide to the airport; however, the sink rate was excessive and he located a small clearing in the boulders on the bluff ahead and elected "to stall in vertically rather than to tumble over the rocks horizontally." He intentionally stalled the airplane at an altitude of 10 feet above ground. The airplane impacted the terrain, nosed over and came to rest inverted. The pilot added that he could have deployed the airplane's BRS parachute (a rocket deployed emergency parachute system), but "chose not to because we could have been blown over the dense population area, very near" to the accident site. Fuel was observed leaking from the wreckage the day after the accident. Initially during post-accident examination, the engine could not be rotated by hand. A broken snap ring was found jamming the gears in the propeller gearbox. According to the engine manufacturer's representative, it is common to find this snap ring broken in engines that have sustained impact damage. The snap ring was replaced and the engine was test run. The engine developed near 100 percent performance. The ignition system was checked and functioned normally. No discrepancies were noted that would have prevented normal engine operation and production of power. The reason for the loss of engine power could not be determined.
Probable Cause: The loss of engine power during approach for an undetermined reason. Contributing to the accident was the lack of suitable terrain for the forced landing.
Accident investigation:
 |
|
Sources:
NTSB SEA07FA240
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 30-Sep-2022 15:48 | ASN Update Bot | Added |
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