CEN09LA224

NTSB accident investigation · Taylorcraft F19 · Lake Vermillion, MN · March 14, 2009

Accident · Serious injuriesLimited investigationFinal report
Date
March 14, 2009, 12:38 local (17:38 UTC)
Place
Lake Vermillion, MN
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N3937TTaylorcraft F19
Defining event
Initial climb: Aerodynamic stall/spin
Weather
Visual (VMC) · Day
Status
Completed · report September 30, 2009
Report
Approved by Office Director
NTSB office
Central Region
Parties
Federal Aviation Administration
FAA report
20090314012519A
Case key
73525

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

The pilot's failure to maintain proper pitch control resulting in a stall/spin.

Findings · 3

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Performance/control parameters: angle of attackAircraft › Aircraft oper/perf/capability · Capability exceededTaylorcraft F19: 1 caseAll aircraft: 990 cases
Performance/control parameters: pitch controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedTaylorcraft F19: 1 caseAll aircraft: 526 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotTaylorcraft F19: 4 casesAll aircraft: 9,295 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The airplane was observed to lift off from a frozen lake and maintain a low altitude until reaching cruise speed. The airplane then pitched up into a steep climb during which it entered a spin and began a descent. The airplane impacted the lake while in the spin. An examination of the airplane revealed no mechanical anomalies that would have precluded normal operation. The airplane was not certified to have, nor was equipped with a stall warning system.

Factual narrative

On March 14, 2009, at 1238 central daylight time, a Taylorcraft Corporation, F19, N3937T, sustained substantial damage on impact with terrain following takeoff from the frozen surface of Lake Vermillion, Minnesota. Visual meteorological conditions prevailed at the time of the accident. The private pilot received serious injuries. The Title 14 Code of Federal Regulations Part 91 personal flight was not operating on a flight plan. The flight was originating at the time of the accident en route to Cook Municipal Airport, Cook, Minnesota. The pilot stated that he did not recall the accident, but stated that he kept the airplane in ground effect until climb out speed was attained. A witness stated that during takeoff, the airplane lifted off and maintained a low altitude above the ice on the lake. The airplane then rotated at a speed approximately near cruise speed and entered a "pretty steep climb." The airplane's speed decreased as it climbed to an altitude of about 300-400 feet above ground level at which point it did not level off. The airplane began to spin which continued until the airplane impacted the ice. Examination of the airplane revealed no mechanical anomalies that would have precluded normal operation. Civil Air Regulation (CAR), Part 3 was used to certify the first Taylorcraft model airplane, which was the Taylorcraft 19 on June 20, 1951. Federal Aviation Regulation, Part 23 (FAR 23), was first published in 1967. The Taylorcraft F19 received certification approval on July 3, 1973, under CAR 3 and FAR 23, but the certification standards relating to stalls was under CAR 3 amendment 3-4, which required a "clear and distinct stall warning." FAR 23.207 requires that the stall warning be "furnished either through the inherent aerodynamic qualities of the airplane or by a device that will give clearly distinguishable indications under expected conditions of flight..." N3937T was not equipped with a stall warning system and no known stall warning kits are available for Taylorcraft airplanes.

Aircraft

Registration
N3937T
Reported as
Taylorcraft F19
Category
Airplane
Serial number
F120
Airframe hours
1,432.65
Engine
Continental O-200, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Pilot
Registered owner
Pilot
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 20, 2008
Departed
Lake Vermillion, MN
Destination
CQM · Cook, MN

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
43
Injuries
Serious
Certificate
Private
Airplane ratings
Multi-engine land, Single-engine land
Medical
Class 3, Without waivers/limitations
Last flight review
July 18, 2007
Seat
Left
Flight hours
506 total · 470 as pilot in command · 14 in the last 90 days · 6 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
210° at 9 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
52 °F, dew point 23 °F
Altimeter
29.77 inHg
Observed at
CQM

Docket · 4

The files NTSB released with the investigation on August 18, 2009, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.0 MB in all.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.

Other investigations on N3937T · 1

Matched to the same aircraft by N-number and date.