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DEN86LA152 · Aeronca 7AC

4 Jun 1986 · Sisseton, SD, United States

Aeronca 7AC · Accident: airframe, component or system failure during initial climb

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Event

NTSB case
DEN86LA152
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
0 · 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

Aeronca 7AC

Aircraft type
Aeronca 7
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
N84693
Onboard fatalities
Unknown
Route
From not recordedTo 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 91: General Aviation
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
Initial climb
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
Airframe, component or system failure
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
Stall
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

  • Door, inspection › Open
  • Pilot in command › Operation with known deficiencies in equipment
  • Pilot in command › Stall, inadvertent

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

NTSB narrative

THE FRONT SEAT PLT, ON HIS FIRST FLT IN THE ACFT, WAS FLYING THE ACFT. AFTER TAKEOFF THE ACFT ENTERED A NOSE HIGH ATTITUDE BECAUSE THE ELEVATOR TRIM WAS IMPROPERLY SET. THE NOSE HIGH ATTITUDE WAS CORRECTED BUT THE RIGHT DOOR ON THE ENGINE COWLING CAME OPEN DURING THE MANEUVER. THE PLT IN THE REAR COCKPIT TOOK CONTROL OF THE ACFT, REDUCED POWER AND ENTERED A DOWNWIND FOR A CROSS RWY. THE REAR SEAT PLT REPORTED TROUBLE SEEING THE INSTRUMENT PANEL BECAUSE HIS VIEW WAS OBSTRUCTED BY THE FRONT SEAT OCCUPANT. THE PLT FELT THE ACFT WAS SLOW AS IT APPROACHED THE RWY AND HE ADDED PWR; HOWEVER, THE ACFT STALLED AT ABOUT 30 FT AGL, TOO LOW TO RECOVER. INVESTIGATION REVEALED THE RT REAR FASTENER WAS WORN AND BOTH PLTS WERE AWARE OF THE CONDITION PRIOR TO TAKEOFF.

Verbatim NTSB analysis from the NTSB dataset

Sources

NTSB record DEN86LA152
Event ID
20001213X33830
Case number
DEN86LA152
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: local date, investigation status. Values present in the bulk record are kept.
  • The date is the local date; the NTSB stores the UTC date 1986-06-05.
  • API snapshot SHA-256: 923178226c56d9ad2fc1f82cc1dcd806534536b94fa81748e38f8cba27d44ade; retrieved 2026-09-22T01:23:39.650Z.