CHI84FA250

NTSB accident investigation · Grumman G-164B · Warren, MN · June 20, 1984

Accident · FatalField investigationFinal report
Date
June 20, 1984, 11:14 local (16:14 UTC)
Place
Warren, MN
Injuries
2 fatal
Phase of flight
Enroute
Aircraft
N6533KGrumman G-164BN9367KCessna T188C
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Case key
12404

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 collisionDescent - normal
Visual lookout - inadequatePilot in commandCause
Visual lookout - inadequatePilot of other aircraftCause
Visual separation - not attainedPilot in commandCause
Visual separation - not attainedPilot of other aircraftCause
In flight collision with terrain/waterDescent - uncontrolled
Midair collisionClimb - to cruise
Visual lookout - inadequatePilot in commandCause
Visual lookout - inadequatePilot of other aircraftCause
Visual separation - not attainedPilot in commandCause
Visual separation - not attainedPilot of other aircraftCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

N9367K was on departure and climbout to aerial application operations. N6533K was about to enter the traffic pattern to land and reload. Marks on respective airframes indicate N9367K was above and approaching N6533K from the latter's forward left quarter; N6533K was below and approaching N9367K from the latter's forward right quarter when the collision occurred. Witnesses noted no evasive action by either aircraft. Collision occurred about 500 ft AGL, 1 and 1/2 mi from airport. Both acft sustained structural damage and descended to ground impact in uncontrolled flight.

N9367K was on departure and climbout to aerial application operations. N6533K was about to enter the traffic pattern to land and reload. Marks on respective airframes indicate N9367K was above and approaching N6533K from the latter's forward left quarter; N6533K was below and approaching N9367K from the latter's forward right quarter, when thecollision occurred. Witnesses noted no evasive action by either aircraft. Collision occurred about 500 ft AGL, 1 and 1/2MILES from airport. Both acft sustained structural damage and descended to ground impact in uncontrolled flight.

Aircraft · 2

Registration
N6533K
Reported as
Grumman G-164B
Category
Airplane
Serial number
358B
Engine
P&W R1340-ANI, 600 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Aerial application · Part 137
Registered owner
Pulkrabeck Airspray
Airworthiness certificate
Standard, Utility
Last inspection
Annual · April 28, 1984
Departed
D37 · Warren, 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.

Registration
N9367K
Reported as
Cessna T188C
Category
Airplane
Serial number
T1880398T
Engine
Continental TSIO-520-T, 310 horsepower, reciprocating
Damage
Destroyed
Flight
Aerial application · Part 137
Operator
Pulkrabek Airspray,Inc., doing business as Pulkrabek Airspray,Inc
Registered owner
Wilmar Aerial Spraying,Inc
Airworthiness certificate
Standard, Utility
Last inspection
Annual · November 9, 1983
Departed
D37 · Warren, MN

Flight crew · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot, aircraft N6533K
Age
52
Certificate
Airline transport
Airplane ratings
Single-engine sea, Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Center
Toxicology
Performed
Flight hours
8,427 total · 50 in the last 90 days · 20 in the last 30 days · 4 in the last 24 hours
Role
Pilot, aircraft N9367K
Age
50
Certificate
Airline transport
Airplane ratings
Multi-engine land, Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Center
Toxicology
Performed
Flight hours
29,700 total · 250 in the last 90 days · 125 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 10 knots
Visibility
10 statute miles
Lowest ceiling
None

FAA reports on this event · 2

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