# NTSB LAX94LA253: Schumacher Swearingen SX-300, N2H, Kingman, AZ, June 12, 1994 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: June 12, 1994, 15:30 local (22:30 UTC) - Place: Kingman, AZ - Coordinates: 35.23941, -113.759201 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=35.2394&lon=-113.7592&mi=10 - Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report March 27, 1995 - Report: Approved by Office Director - NTSB case key (mKey): 28773 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX94LA253 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/28773/pdf - Page: https://openairdocs.org/ntsb/LAX94LA253 ## Probable cause the pilot's inadvertent raising the flaps during a go-around attempt. A factor in the accident was the gusty crosswind condition. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of control - in flight, go-around (vfr) - weather condition - crosswind (contributing factor) - weather condition - gusts (contributing factor) - raising of flaps - inadvertent, pilot in command (cause) - In flight collision with terrain/water, descent - uncontrolled - stall/mush - inadvertent, pilot in command ## Analysis THE PILOT WAS MONITORING THE UNICOM FREQUENCY ABOUT 30 TO 40 MILES AWAY FROM THE AIRPORT AND PLANNED HIS APPROACH TO THE RUNWAY USED BY PRECEDING TRAFFIC. ON SHORT FINAL, THE PILOT REALIZED THE WINDS FAVORED A DIFFERENT RUNWAY AND ATTEMPTED A GO-AROUND. THE PILOT ADDED POWER AND INADVERTENTLY RAISED THE FLAPS. THE AIRPLANE SETTLED AND COLLIDED WITH THE RUNWAY. THE WIND VELOCITY WAS REPORTED AT 16 KNOTS WITH PEAK GUSTS 29 KNOTS AT THE TIME OF THE ACCIDENT. ## Factual narrative On June 12, 1994, at 1530 hours mountain standard time (MST), a homebuilt experimental Schumacher Swearingen SX-300, N2H, lost control and collided with the runway surface at the Kingman, Arizona, airport. The airplane was being operated as a personal flight by the pilot/owner. The airplane was substantially damaged. The certificated private pilot and passenger were not injured. The flight originated in Salt Lake City, Utah, at 1425 hours MST. Visual meteorological conditions prevailed and a VFR flight plan was filed. The pilot indicated he was monitoring the Kingman Airport UNICOM about 30 to 40 miles away from the airport. The pilot heard the pilot of a preceding Mooney airplane go-around on approach to runway 21 and land on runway 17. The pilot planned his approach to runway 17. On short final approach, the pilot decided the winds favored landing on runway 21, and attempted a go-around. The pilot added power and raised the flaps. The airplane settled and collided with the runway. In his statement, the pilot said that he inadvertently raised the flaps resulting in the airplane's loss of lift and subsequent settling on the runway. The pilot also indicated that there were no mechanical failures or malfunctions with the airplane before the accident. The automated weather station at the Kingman Airport was reporting winds from 190 degrees at 16 knots with peak gusts 29 knots at the time of the accident. ## Aircraft - Registration: [N2H](https://openairdocs.org/deregistered/N2H-2012-08-01), registration cancelled 2012-08-01, S/N SA29-66, built 1988 (OpenAirDocs) - Reported make and model: SCHUMACHER SWEARINGEN SX-300 (SWEARINGEN) - Registry model: [Schumacher Joe SWEARINGEN SX-300](https://openairdocs.org/model/schumacher-joe-swearingen-sx-300) (registry code 0568003) (OpenAirDocs) - Registry engine: [Lycoming IO-540 series](https://openairdocs.org/engine/lycoming-io-540-series) (registry code 41530, reciprocating) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: SA29-66 - Airframe hours: 560 - Engines: LYCOMING IO-540-K1A5 300 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Stevens, Larry P. - Registered owner: Stevens, Larry P. - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Annual, May 24, 1994, 10 hours before - Departed: SLC, SALT LAKE CITY, UT - Destination: IGM, AZ - Flight plan: VFR - Airport: IGM, Kingman, runway 17, 6,724 × 75 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 52; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 536 total, 250 in this make and model, 429 as pilot in command, 25 in the last 90 days, 10 in the last 30 days, 2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 190° at 16 knots, gusting 29 - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 95 °F - Altimeter: 29.00 inHg - Observed at: IGM ## 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 19940612014969A](https://openairdocs.org/incident/19940612014969A), Jun 12, 1994: Amtres SX300, Kingman, AZ, Substantial damage. Gusty wind on landing. Elected go around. Dumped flaps. Lost lift and impacted runway. ## Other investigations on N2H (1) 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. - [NTSB DEN00LA101](https://openairdocs.org/ntsb/DEN00LA101), Jun 4, 2000: Schumacher Swearingen SX-300 (N2H), Richfield, UT, substantial damage. Probable cause: Fuel starvation due to the unavailability of fuel to the engine for undetermined reasons and the pilot's misjudgment of distance/altitude on final approach. Contributing factors were the pilot's… 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. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.