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Air Parcel Express Aero Commander 680FL accident

8 Aug 1986 · DUXSBURY, VT, United States

Aero Commander 680FL · Accident: in flight collision with terrain/water en route

From Edward F Knapp State Airport (MPV) to Patrick Leahy Burlington International Airport (BTV)

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Event

NTSB case
NYC86FA201
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
1 · 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
Charter & commuter
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

Aero Commander 680FL

Aircraft type
Aero Commander 680
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
N6341U
Onboard fatalities
Unknown
Route
From Edward F Knapp State Airport (MPV), Montpelier, VTTo Patrick Leahy Burlington International Airport (BTV), Burlington, VT
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 135: Air Taxi & Commuter
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 · 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
In flight collision with terrain/water
Also codedOther events the NTSB coded in the sequence, such as a wire strike after a loss of power. Flight Findings uses them for its kinds of event. Glossary
Visual flight rules (VFR) flight into instrument meteorological conditions (IMC)
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 › Clearance, inadequate
  • Pilot in command › VFR flight into imc, performed

Not plotted · Location withheld: coordinates are missing, conflicting, invalid, or have no accepted acquisition method. No substitute location has been invented.

NTSB narrative

THE PLT WAS ON A VFR FLIGHT FROM MONTPELIER, VT TO BURLINGTON, VT; A DISTANCE OF ABOUT 80 MIS. A MOUNTAIN RANGE IS BETWEEN THE TWO LOCATION. SHORTLY AFTER TAKEOFF THE PLT RADIOED BURLINGTON APPROACH CONTROL AND REQUESTED AN IFR CLEARANCE TO LAND AT BURLINGTON. HE REPORTED THAT HE WAS 10 MILES NW OF MONTPELIER. THE PLT WAS ASSIGNED A TRANSPONDER CODE. THE AIR TRAFFIC CONTROLLER THEN NOTICED THAT THE ACFT WAS NEAR A MOUNTAIN AT A UNVERIFIED ALTITUDE OF 3500 FT. THE CONTROLLER ALERTED THE PLT THAT HE WAS 2 MILES SOUTH OF A 4393 FT HIGH MOUNTAIN. THERE WAS NO RESPONSE FROM THE PLT. THE ACFT COLLIDED WITH THE EAST SIDE OF ETHAN ALLEN AT A HEIGHT OF 3580 FT. THE ACFT WAS ON A NORTHWEST HEADING AT IMPACT. VFR CONDITIONS OF 3800 FT BROKEN AND 4000 FT SCATTERED EXISTED AT THE TIME.

Verbatim NTSB analysis from the NTSB dataset

Sources

NTSB record NYC86FA201
Event ID
20001213X34585
Case number
NYC86FA201
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: f135e33df6850ba78b7ee339937f1367b2e065eb558cd433a70626b0993e3ffc; retrieved 2026-09-18T14:19:46.221Z.