FLIGHT FINDINGSAVIATION OCCURRENCE MAP
Back to map

CHI84FA250 · Grumman G-164B

20 Jun 1984 · Warren, MN, United States

Grumman G-164B and Pulkrabek Airspray Cessna T188C · Accident: midair collision en route

Report a problem

Event

NTSB case
CHI84FA250
Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
Accident
InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
Completed
API-reported fatalities
2 · all aircraft and ground
Ground fatalities
0
OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
General aviation
WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
Visual Meteorological Cond

Aircraft 1 · Grumman G-164B

Aircraft type
Grumman G-164
Category
Airplane
RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
N6533K
Operator
Unknown
Onboard fatalities
Unknown
Route
From Warren Municipal Airport (D37), Warren, MNTo not recorded
Aircraft age
Not recorded
Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
Part 137: Agricultural
Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
En route · descent
First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
Midair collision
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Destroyed

Aircraft 2 · Cessna T188C

Aircraft type
Cessna 188
Category
Airplane
RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
N9367K
Onboard fatalities
Unknown
Route
From Warren Municipal Airport (D37), Warren, MNTo not recorded
Aircraft age
Not recorded
Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
Part 137: Agricultural
Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
En route · climb to cruise
First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
Midair collision
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Destroyed

Cause areas

  • Pilot in command › Visual lookout, inadequate
  • Pilot in command › Visual separation, not attained
  • Pilot of other aircraft › Visual lookout, inadequate
  • Pilot of other aircraft › Visual separation, not attained

Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.

NTSB narrative

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.

Verbatim NTSB analysis from the NTSB dataset

Sources

NTSB record CHI84FA250
Event ID
20001214X39835
Case number
CHI84FA250
Dataset
historical-pre2008
Source SHA-256
89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (4)
  • Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
  • Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
  • The date is the local date, which is the same as the UTC date the NTSB stores.
  • API snapshot SHA-256: bca65eb4b044ef622c8bd46521bb88c05519175efc298d477608ae7cde7ba908; retrieved 2026-09-21T05:29:12.752Z.