19970418006219A

Accident · Substantial damage

FAA accident report · Swftms GC-1A · Wilmington, OH · April 18, 1997

Date
April 18, 1997 · 14:45 local
Place
Wilmington, OH
Airport
Clinton
Phase of flight
Roll-Out (Fixed Wing)
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N80523
NTSB investigation
NTSBIAD97LA066
Reported as
Swftms GC1A
Reported engine
Continental C90*
People aboard
1
Fatal injuries
0
Pilot’s flight hours
586 total3 in this make and model3 in the last 90 days

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

Curred off runway into trees landing in quartering tailwind. Low time in type unfavorable wind factors. (-23) the accident flight was conducted under 14 CFR part 91. The flight was flown in visual meteorological conditions (VMC) and other then wind gusts from the northwest up to 18 knots, weather (sky and ceiling) was not considered to be a factor. The PIC completed a successful landing on runway 20 at Clinton field, (I66). Current winds were approximately 310 degrees at 10 KTS gusting to 18 KTS. This gave the PIC an approximate 90 degree or more right crosswind. There is an additional possibility of the PIC exceeding the crosswind component of the aircraft he was flying. Upon the landing rollout, the PIC lost directional control of the aircraft to the right and departed the runways hard surface. (This deviation in directional control is usually attributed to be a "weather cocking" phenomenon commonly found in conventional gear airplanes). After regaining control of his aircraft but still on the grass next to the runway, the PIC applied full throttle in an attempt to salvage the landing and become airborne. As the tail of the ai rcraft raised the PIC lost directional control again, due to gyroscopic precession and veered to the left, crossing runway 20 at an approximate 35 degree angle. While eventually becoming airborne in ground effect, he continued on this vector across the runway eventually coming to rest approximately 100 feet southeast of its hard surface and cradled in an apple tree in an apple orchard which is cotangent to the airport property. Minor property damage occurred to the landowner's fence and several apple trees. The PIC was not injured. First responders and the county sheriff's trooper were on the scene. The PIC refused any medical treatment at the accident site.

As the FAA filed it

CURRED OFF RUNWAY INTO TREES LANDING IN QUARTERING TAILWIND. LOW TIME IN TYPE UNFAVORABLE WIND FACTORS. (-23) THE ACCIDENT FLIGHT WAS CONDUCTED UNDER 14 CFR PART 91. THE FLIGHT WAS FLOWN IN VISUAL METEOROLOGICAL CONDITIONS (VMC) AND OTHER THEN WIND GUSTS FROM THE NORTHWEST UP TO 18 KNOTS, WEATHER (SKY AND CEILING) WAS NOT CONSIDERED TO BE A FACTOR. THE PIC COMPLETED A SUCCESSFUL LANDING ON RUNWAY 20 AT CLINTON FIELD, (I66). CURRENT WINDS WERE APPROXIMATELY 310 DEGREES AT 10 KTS GUSTING TO 18 KTS. THIS GAVE THE PIC AN APPROXIMATE 90 DEGREE OR MORE RIGHT CROSSWIND. THERE IS AN ADDITIONAL POSSIBILITY OF THE PIC EXCEEDING THE CROSSWIND COMPONENT OF THE AIRCRAFT HE WAS FLYING. UPON THE LANDING ROLLOUT, THE PIC LOST DIRECTIONAL CONTROL OF THE AIRCRAFT TO THE RIGHT AND DEPARTED THE RUNWAYS HARD SURFACE. (THIS DEVIATION IN DIRECTIONAL CONTROL IS USUALLY ATTRIBUTED TO BE A "WEATHER COCKING" PHENOMENON COMMONLY FOUND IN CONVENTIONAL GEAR AIRPLANES). AFTER REGAINING CONTROL OF HIS AIRCRAFT BUT STILL ON THE GRASS NEXT TO THE RUNWAY, THE PIC APPLIED FULL THROTTLE IN AN ATTEMPT TO SALVAGE THE LANDING AND BECOME AIRBORNE. AS THE TAIL OF THE AI RCRAFT RAISED THE PIC LOST DIRECTIONAL CONTROL AGAIN, DUE TO GYROSCOPIC PRECESSION AND VEERED TO THE LEFT, CROSSING RUNWAY 20 AT AN APPROXIMATE 35 DEGREE ANGLE. WHILE EVENTUALLY BECOMING AIRBORNE IN GROUND EFFECT, HE CONTINUED ON THIS VECTOR ACROSS THE RUNWAY EVENTUALLY COMING TO REST APPROXIMATELY 100 FEET SOUTHEAST OF ITS HARD SURFACE AND CRADLED IN AN APPLE TREE IN AN APPLE ORCHARD WHICH IS COTANGENT TO THE AIRPORT PROPERTY. MINOR PROPERTY DAMAGE OCCURRED TO THE LANDOWNER'S FENCE AND SEVERAL APPLE TREES. THE PIC WAS NOT INJURED. FIRST RESPONDERS AND THE COUNTY SHERIFF'S TROOPER WERE ON THE SCENE. THE PIC REFUSED ANY MEDICAL TREATMENT AT THE ACCIDENT SITE.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.