N137MS LET NP Kinovice Z37A accident

NTSB MIA04LA011 · 2003-10-24 · Oak Hill, FL · near 34FD

Summary

The pilot stated he was in slow flight at 250 feet above ground level in the traffic pattern on a heading of northwest flying away from the runway when the right wing abruptly dropped. He first pushed the nose of the airplane forward, added power and opposite aileron, and then he applied rudder. He did not recover due to the low altitude. The FAA inspector who responded to the accident stated the pilot turned left base, for runway 18 when he noticed he was too close to the approach end of the runway. He elected to make a right turn to re-enter the traffic pattern. The airplane was on a heading of approximately 330-degrees when it stalled and spun to the right. During the uncontrolled descent the airplane rotated approximately 240 degrees before striking branches of a tree and then impacted the ground nose first.

Full narrative

On October 24, 2003, about 1824 eastern daylight time, an experimental (exhibition) Let NP Kinovice Z37A, N137MS, registered to and operated by a private owner as a Title 14 CFR Part 91 personal flight, impacted with the ground while entering the traffic pattern for the Blue Ridge Flightpark Airport, Oak Hill, Florida. Visual meteorological conditions prevailed at the time, and no flight plan was filed. The private-rated pilot reported serious injuries, and one passenger reported minor injuries, and the airplane incurred substantial damage. The flight originated from the Blue Ridge Flightpark, a few minutes before the accident.

The pilot stated he was in slow flight at 250 feet above ground level in the traffic pattern on a heading of northwest, flying away from the runway when the right wing abruptly dropped. He first pushed the nose of the airplane forward, added power and opposite aileron, and then he applied rudder. He did not recover do to the low altitude.

The FAA inspector who responded to the accident stated the pilot turned left base, for runway 18 when he noticed he was too close to the approach end of the runway. He elected to make a right turn to re-enter the traffic pattern. The airplane was on a heading of approximately 330-degrees when it stalled and spun to the right. During the uncontrolled descent the airplane rotated approximately 240 degrees before striking branches of a tree and then impacted the ground nose first.

Probable cause

The pilots failure to maintain airspeed while maneuvering to re-enter the pattern resulting in an inadvertent stall and impact with trees and the ground during the subsequent uncontrolled descent. The National Transportation Safety Board determined the probable cause of this accident.

Circumstances

Event type: Accident
Highest injury: Serious
Weather conditions: Visual Meteorological Cond
Light condition: Day
Sky condition: NONE
Ceiling (ft): 0
Visibility (sm): 10
Wind direction: 70
Wind speed (kt): 8
Temperature (F): 79
Nearest airport: Blue Ridge Airpark Airport
Distance from field: 0.0
Airport elevation: 15

Aircraft

Registration	Make	Model	Damage	FAR part
N137MS	LET NP Kinovice	Z37A	SUBS	091

Sequence of events

#	Occurrence	Phase
1	250	Cruise
2	220	Cruise
3	230	Cruise

Findings

Finding
24511	cause
24552
20200
19200