# NTSB CHI91DCD02: Canadian Car & Foundry Harvard Mark IV, N15795, Ida Grove, IA, August 11, 1991

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Final report
- Date: August 11, 1991, 15:10 local (20:10 UTC)
- Place: Ida Grove, IA
- Coordinates: 42.339908, -95.470367 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.3399&lon=-95.4704&mi=10
- Phase of flight: [Other](https://openairdocs.org/ntsb-phases/800) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report September 28, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 14796
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI91DCD02
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/14796/pdf
- Page: https://openairdocs.org/ntsb/CHI91DCD02

## Probable cause

THE PILOT'S FAILURE TO MAINTAIN AIRSPEED.

## Sequence of events

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

- Loss of control - on ground/water, other
  - airspeed - not maintained, pilot in command (cause)
  - stall/spin - inadvertent, pilot in command
- In flight collision with terrain/water, other

## Analysis

THE AIRPLANE WAS PART OF A FLIGHT OF 'ZEROS' IN A LOW-ALTITUDE RACETRACK CLOSED PATTERN CONDUCTING SIMULATED STRAFING RUNS DURING A REENACTMENT OF THE ATTACK ON PEARL HARBOR. THE AIRPLANE WAS OBSERVED TO STALL DURING THE DOWNWIND-TO-BASE SEGMENT AND SPIN INTO THE GROUND.

## Aircraft

- Registration: [N15795](https://openairdocs.org/deregistered/N15795-1991-11-22), registration cancelled 1991-11-22, S/N CCF4104 (OpenAirDocs)
- Reported make and model: Canadian Car & Foundry HARVARD MARK IV (HARVARD MA)
- Registry model: [Canadian Car & Foundry HARVARD MK IV](https://openairdocs.org/model/canadian-car-foundry-harvard-mk-iv) (registry code 1922828) (OpenAirDocs)
- Category: Airplane
- Serial number: 15795
- Airframe hours: 5493
- Engines: P&W R1340-AN 1 600 horsepower reciprocating
- Damage: Destroyed
- Fire: On-Ground
- Flight: Part 91
- Operator: Mack Stevens Orr
- Registered owner: Confederate Air Force, Inc.
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Unknown, April 6, 1991, 36 hours before
- Departed: SLB, STORM LAKE, IA

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 51; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; seat: front; toxicology performed; flight hours: 15,000 total, 1,000 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 10° at 9 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 84 °F, dew point 55 °F
- Altimeter: 30.00 inHg

## 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 19910811033009A](https://openairdocs.org/incident/19910811033009A), Aug 11, 1991: Namer HARVARDMK4, Ida Grove, IA, Destroyed, 1 fatal. Made steep turn entering base leg. Pitched nose high,rolled left,stalled,made vertical dive hit side of hill,burned.

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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