# NTSB FTW85FA335: North American British Harvard Mkii, N711XX, Ada, OK, August 28, 1985

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Field investigation · Final report
- Date: August 28, 1985, 17:45 local (22:45 UTC)
- Place: Ada, OK
- Coordinates: 34.770305, -96.660003 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.7703&lon=-96.6600&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 21569
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW85FA335
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/21569/pdf
- Page: https://openairdocs.org/ntsb/FTW85FA335

## Sequence of events

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

- Abrupt maneuver, maneuvering
  - visual lookout - not maintained, pilot in command (cause)
  - low pass - performed, pilot in command (cause)
  - overconfidence in personal ability, pilot in command (cause)
- In flight collision with terrain/water, descent
  - clearance - misjudged, pilot in command (cause)
- On ground/water collision with object, other
  - object - fence

## Analysis

TWO FULLY QUALIFIED SINGLE ENGINE PLTS WERE IN THE ACFT AT THE TIME OF THE ACCIDNET. THE ACFT WAS OBSERVED MAKING LOW PASSES NEAR THE AIRPORT AFTER TAKEOFF. ONE PLT'S MOTHER LIVED NEAR THE ACCIDENT SITE. THE ACFT WAS IN A STEEP BANKED RIGHT TURN WHEN THE RIGHT WING TIP IMPACTED THE SURFACE FOLLOWED BY THE AIRCRAFT IMPACTING THE SURFACE WITH THE WRECKAGE CONTINUING THRU WIRES, FENCE AND THE PIPE STORAGE RACKS. THE IMPACT DEMOLISHED THE AIRCRAFT AND FATALLY INJURED THE PLTS. IT COULD NOT BE DETERMINED WHICH OF THE PLTS WAS FLYING THE ACFT AT THE TIME OF IMPACT.

## Aircraft

- Registration: [N711XX](https://openairdocs.org/deregistered/N711XX-2017-05-15), registration cancelled 2017-05-15, S/N 2927, built 1958 (OpenAirDocs)
- Reported make and model: NORTH AMERICAN BRITISH HARVARD MKII (BRITISH HA)
- Registry model: [North American BRITISH HARVARD](https://openairdocs.org/model/north-american-british-harvard) (registry code 6400426) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 2927
- Engines: P&W R-1430-AN-1 650 horsepower reciprocating
- Damage: Destroyed
- Fire: On-Ground
- Flight: Personal, Part 91
- Operator: Ada Aircraft, doing business as Mid-American Air Group, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, August 17, 1985
- Destination: PWA, OKLAHOMA CITY, OK

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 29; commercial, flight instructor; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: front; toxicology performed

## Weather

- Conditions: Visual (VMC), Day
- Wind: 200° at 6 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 90 °F, dew point 70 °F
- Altimeter: 30.00 inHg
- Observed at: MLC, 60 nm away

## 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 19850828047789A](https://openairdocs.org/incident/19850828047789A), Aug 28, 1985: Namer HARVARD*, Ada, OK, Destroyed. Flew low across airport then went into a 90 degree bank and descended to ground impact. No malfunction found.

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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