- Date
- March 16, 1996, 09:40 local (14:40 UTC)
- Place
- North Vernon, IN
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N9YKYakovlev YAK C-11
- Weather
- Visual (VMC) · Day
- Status
- Completed · report May 29, 1996
- Report
- Approved by Office Director
- FAA report
- 19960316004399A
- Case key
- 10211
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
Failure of the pilot to maintain adequate airspeed during an aborted landing, which resulted in an inadvertent stall.
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Analysis
The pilot said that as he was crossing the threshold for landing, he detected 'an excessive sink rate.' The pilot applied aft stick pressure and climbed to approximately 20 feet AGL, then applied power. The airplane rolled left. The left wing tip struck the terrain about 20 feet left of the runway, followed by the propeller and cowling. The airplane then 'spun in a counter-clockwise direction and fell to the ground, coming to rest with the nose pointed toward the runway, approximately 40 feet from the runway's edge.' Examination of the wreckage at the scene revealed no anomalies which contributed to the accident.
Factual narrative
On March 16, 1996, at 0940 eastern standard time (est), a Yakovlev, Yak C-11, N9YK, operated by a private pilot, sustained substantial damage when during landing at North Vernon, Indiana, the airplane impacted the terrain along side the runway. Visual meteorological conditions prevailed at the time of the accident. The personal flight was being conducted under 14 CFR Part 91. No flight plan was on file. The pilot reported no injuries. The flight originated at Louisville, Kentucky at 0900 est.
In his written statement, the pilot said that as he was crossing the threshold for landing, at an altitude of 20 feet above ground level (AGL) and an airspeed of 100 knots, "an excessive sink rate was detected." The pilot applied aft stick pressure and climbed to approximately 20 feet AGL, then applied power. The airplane rolled left. The left wing tip struck the terrain 20 feet left of the runway, followed by the propeller and cowling. The airplane then "spun in a counter-clockwise direction and fell to the ground coming to rest with the nose pointed toward the runway, approximately 40 feet from the runway's edge."
The Federal Aviation Administration inspector who examined the wreckage at the scene found damage to both wing tips, the right main landing gear, the propeller and cowling. The forward fuselage skin, skin along the leading edges of both wings, and skin along the bottom of the fuselage showed substantial wrinkling. The right main wing spar was bent up approximately 25 degrees. Flight control continuity was confirmed. No other anomalies were found.
Aircraft
- Registration
- N9YK
- Reported as
- Yakovlev YAK C-11
- Category
- Airplane
- Serial number
- 172612
- Airframe hours
- 3,300
- Engine
- Shvetsov A-SH21, 720 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Registered owner
- William Gossmann
- Airworthiness certificate
- Special, Experimental (Special)
- Last inspection
- Annual · September 27, 1995 · 23 hours before
- Departed
- LOU · Louisville, KY
- Destination
- OVO
- Airport
- OVO · North Vernon Municipal, runway 5, 4,500 × 50 ft, concrete
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 53
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 3, Valid Medical--w/ waivers/lim
- Seat
- Front
- Flight hours
- 1,249 total · 23 in this make and model · 1,249 as pilot in command · 25 in the last 90 days · 6 in the last 30 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 4 statute miles
- Lowest ceiling
- None
- Temperature
- 45 °F
- Altimeter
- 29.00 inHg
- Observed at
- BAK, 19 nm away
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.