# NTSB CHI82DA363: Aeronca 7EC, N29246, Detroit, MI, September 21, 1982

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: September 21, 1982, 10:40 local (14:40 UTC)
- Place: Detroit, MI
- Coordinates: 42.329208, -83.049636 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.3292&lon=-83.0496&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report September 21, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 70469
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI82DA363
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/70469/pdf
- Page: https://openairdocs.org/ntsb/CHI82DA363

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of control - in flight, takeoff - initial climb
  - flight controls - improper use of, dual student (cause)
  - supervision - inadequate, pilot in command(cfi) (cause)
  - stall - inadvertent, pilot in command(cfi)
- In flight collision with terrain/water, takeoff - initial climb

## Analysis

AIRCRAFT MADE LEFT TURN AFTER TAKEOFF AT 15 FEET AGL BEHIND TREE LINE WHICH INTERFERRED WITH AVAILABLE WIND. AIRCRAFT STALLED AND DRAGGED LEFT WING, FOLLOWED BY CARTWHEEL AND SINKING.

## Aircraft

- Registration: [N29246](https://openairdocs.org/deregistered/N29246-2018-03-02), registration cancelled 2018-03-02, S/N 7EC-334 (OpenAirDocs)
- Reported make and model: AERONCA 7EC
- Registry model: [Champion 7EC](https://openairdocs.org/model/champion-7ec) (registry code 21101NM) (OpenAirDocs)
- Category: Airplane
- Serial number: 7EC334
- Airframe hours: 1460
- Engines: CONTINENTAL C-90-12F 90 horsepower reciprocating
- Damage: Destroyed
- Flight: Instructional, Part 91
- Operator: Laverne Dinatale
- Registered owner: Walter Oltersdorff
- Departed: 12, DETROIT, MI
- Destination: 12, DETROIT, MI
- Airport: 12, Detroit Seaplane Base

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 38; flight instructor, commercial; airplane ratings: multi-engine land, single-engine sea, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; flight hours: 1,735 total, 50 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 270° at 10 knots
- Visibility: 20 statute miles
- Lowest ceiling: 3,000 ft broken
- Temperature: 140 °F

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19820921048039A](https://openairdocs.org/incident/19820921048039A), Sep 21, 1982: Bbavia 7EC, Detroit, MI, Destroyed. After lisft off left wing dropped and instructor took over, but aircraft cartwheeled to right into river.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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