Hiperlight SNS-8 UNREG
25 March 2003 · South Prairie, Washington, United States · No injuries
Summary
On 25 March 2003 at about 17:45 local time, a Hiperlight SNS-8 registered UNREG was involved in an accident near South Prairie, Washington, United States. One person was on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 17:45
- Classification
- Accident
- Location
- South Prairie, Washington, United States
- Coordinates
- 47.1400, -122.1039
- Aircraft
- Hiperlight SNS-8
- Registration
- UNREG
- Category
- Airplane
- Engines
- 1
- Operator
- Not recorded
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Personal
- Phase of flight
- Not recorded
- Route
- South Prairie → Unknown
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- SEA03LA050
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 1 | 0 | 0 | 0 | 1 |
Probable cause
The failure of the pilot to maintain control of the aircraft during the crosswind turn resulting in an inadvertent spin entry, followed by his intentional stall to a landing resulting in a hard landing and subsequent nose over.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
The pilot /owner of the unregistered experimental homebuilt SNS-8 aircraft took the aircraft out on its first flight following maintenance work. The pilot reported that the airspeed indicator was inaccurate. After departing the private airstrip, and about 1,300 feet above ground, he attempted to level the wings out of a left turn, but the aircraft continued rolling inverted and the pilot reported that it entered into a spin, which he recovered from after roughly two rotations. The pilot then elected to execute an immediate landing in a nearby field. During his approach, he intentionally slowed the aircraft to stall speed. The aircraft impacted the ground and immediately nosed over. An FAA inspector examined the aircraft and found no malfunction with its flight controls. He also reported finding a leak in the aircraft's pitot static system.
Quoted verbatim from the NTSB record.
Other Hiperlight SNS-8 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 17 Aug 2002 | Hiperlight SNS-8 | Auburn, Washington, United States | - | No injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 10 Nov 2003 | Cessna 150C | Toledo, Washington, United States | - | No injuries | - |
| 12 Jun 2003 | Rockwell S-2R | Royal City, Washington, United States | - | No injuries | - |
| 2 Oct 2003 | Cessna 340 | Blakely Island, Washington, United States | - | Minor injuries | - |
| 17 Jan 2003 | Classic Fighter ME-262 REPRODUCTION | Everett, Washington, United States | Wolfgang Czaia | No injuries | - |
| 15 Jun 2003 | Cessna 172P | Seattle, Washington, United States | - | No injuries | - |
| 10 Jul 2003 | Hanks AVID FLYER | Toledo, Washington, United States | - | Serious injuries | - |