# NTSB FTW83LA106: Robinson R22, N90763, Stillwater, OK, February 7, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: February 7, 1983, 12:30 local (18:30 UTC)
- Place: Stillwater, OK
- Coordinates: 36.079704, -97.070602 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=36.0797&lon=-97.0706&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 20801
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW83LA106
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/20801/pdf
- Page: https://openairdocs.org/ntsb/FTW83LA106

## Sequence of events

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

- In flight collision with object, approach - vfr pattern - final approach
  - autorotation - simulated, pilot in command(cfi) (contributing factor)
  - visual lookout - inadequate, dual student (cause)
  - visual lookout - inadequate, pilot in command(cfi) (cause)
  - object - wire,transmission (contributing factor)

## Analysis

A SIMULATED AUTOROTATIONAL LANDING WAS INITIATED AT ABOUT 450 FT AGL. DURING THE APPROACH, A 90 DEG ARC WAS FLOWN TOWARD AN OPEN FIELD. A FLARE WAS BEGUN WITH A POWER RECOVERY AT ABOUT 40 FT AGL WHEN A WIRE WAS OBSERVED IN THE FLIGHT PATH. BY THIS TIME, THE AIRCREW WERE UNABLE TO AVOID THE WIRE. AFTER HITTING THE WIRE, THE HELICOPTER LANDED IN THE FIELD & CAME TO REST ON ITS LEFT SIDE.

## Aircraft

- Registration: N90763 (not matched to a registry record)
- Reported make and model: ROBINSON R22
- Category: Helicopter
- Serial number: 0266
- Airframe hours: 199
- Engines: LYCOMING O-320-B2C 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Craig Manley
- Registered owner: Garr-Aero
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, August 1, 1982, 51 hours before

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 35; commercial, flight instructor; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: right; flight hours: 2,823 total, 147 in this make and model, 2,643 as pilot in command, 68 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 180° at 6 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 39 °F
- Altimeter: 29.00 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 19830207002749A](https://openairdocs.org/incident/19830207002749A), Feb 7, 1983: Robsin R22, Stillwater, OK, Substantial damage. Struck a powerline during a practice autorotation to a farm field. The helicopter landed on its left side.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.