CHI84FA225

NTSB accident investigation · Schleicher AS-K13 · Stanton, MN · June 9, 1984

Accident · FatalField investigationFinal report
Date
June 9, 1984, 09:40 local (14:40 UTC)
Place
Stanton, MN
Injuries
1 fatal, 1 serious, 1 minor
Phase of flight
Approach
Aircraft
N3313Schleicher AS-K13N1015APiper PA-18A
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Case key
12400

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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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.

Midair collisionApproach - vfr pattern - base leg/base to final
Communications equipment - not attainedFactor
Visual lookout - inadequatePilot in command(cfi)Cause
Visual lookout - inadequateDual studentCause
Light condition - sunglareFactor
Visual lookout - inadequatePilot of other aircraftCause
In flight collision with terrain/waterDescent - uncontrolled
Midair collisionApproach - vfr pattern - base leg/base to final
Communications equipment - not attainedFactor
Light condition - sunglareFactor
Visual lookout - inadequatePilot in commandCause
Visual lookout - inadequatePilot of other aircraftCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The tow plane and the sailplane it had towed to pattern alt collided on final approach of the pattern. The tow plane was supposed to follow the sailplane to land after it had dropped the tow rope. There was a low sun glare facing the towplt on the heading of the base leg. According to the CFI in the glider, the tow plt was looking 'ahead and to the left' just before the collision. There were no radios in either acft.

The tow plane and the glider it had towed to pattern alt collided on the final approach of the traffic pattern. The tow plane was supposed to follow the sailplane & land after its tow rope drop. There was a low sun glare on the heading of the base leg. The CFI in the glider said he did not see the tow plane until the glider was at about 200 ft AGL & 200 yards from touchdown, then he saw a 'white movement' to his left. He turned right, but was too late to avoid a collision. He said there were no radios in either acft.

Aircraft · 2

Registration
N3313
Reported as
Schleicher AS-K13
Category
Glider
Serial number
13086
Airframe hours
3,222
Engine
unknown
Damage
Destroyed
Flight
Instructional · Part 91
Registered owner
Minnesota Soaring Club, Inc.
Airworthiness certificate
Standard, Normal
Departed
SYN · Stanton, MN
Airport
SYN · Carleton, runway 36, 2,560 × 300 ft, grass/turf
Registration
N1015A
Reported as
Piper PA-18A
Category
Airplane
Serial number
18-585
Engine
Lycoming O-320-A3B, 150 horsepower, reciprocating
Damage
Destroyed
Flight
Part 91
Registered owner
Minnesota Soaring Club, Inc.
Airworthiness certificate
Special, Restricted (Special)
Airport
SYN · Carleton, runway 36, 2,560 × 300 ft, grass/turf

Flight crew · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot, aircraft N3313
Age
40
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Rear
Flight hours
1,508 total · 200 in this make and model · 1,440 as pilot in command · 49 in the last 90 days · 1 in the last 24 hours
Role
Pilot, aircraft N1015A
Age
60
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Unknown
Seat
Front
Toxicology
Performed
Flight hours
4,074 total · 165 in this make and model · 2,635 as pilot in command · 8 in the last 90 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 5 knots
Visibility
7 statute miles
Lowest ceiling
None
Temperature
70 °F

FAA reports on this event · 2

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