# NTSB FTW82DA192: Robinson R22, N90763, Ada, OK, May 24, 1982

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Final report
- Date: May 24, 1982, 12:20 local (17:20 UTC)
- Place: Ada, OK
- Coordinates: 34.770015, -96.660285 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.7700&lon=-96.6603&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 1 uninjured
- Status: Completed, report May 24, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 69685
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW82DA192
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/69685/pdf
- Page: https://openairdocs.org/ntsb/FTW82DA192

## Sequence of events

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

- Roll over, landing - flare/touchdown
  - autorotation - intentional, pilot in command
  - cyclic - improper use of, pilot in command (cause)

## Analysis

THIS WAS A COMMERCIAL CERTIFICATION CHECK FLIGHT FOR THE PILOT-IN-COMMAND. AFTER COMPLETING NORMAL HOVERING MANEUVERS, THE EXAMINER INSTRUCTED THE PILOT TO EXECUTE A HOVERING AUTOROTATION OVER A LEVEL AREA OF GRASS. THE PILOT ROLLED THE THROTTLE OFF ON A COUNT OF THREE. HE CORRECTED FOR TORQUE BY APPLYING RIGHT PEDAL, BUT DID NOT CORRECT FOR TRANSLATING TENDENCY WITH RIGHT CYCLIC. THE AIRCRAFT TOUCHED DOWN IN A LEFT-SKID-LOW ATTITUDE WHILE DRIFTING LEFT. THE LEFT SKID DUG INTO WET SOFT TERRAIN AND THE AIRCRAFT ROLLED TO THE LEFT. THE MAIN ROTOR BLADES STRUCK THE GROUND AND THE LEFT SKID FAILED. THE EXAMINER STATED THAT HE DID NOT HAVE TIME TO REACT TO THE PILOT'S TECHNIQUE.

## Aircraft

- Registration: N90763 (not matched to a registry record)
- Reported make and model: ROBINSON R22
- Category: Helicopter
- Serial number: 266
- Airframe hours: 148
- Engines: LYCOMING O-320 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Airada Aviation, Inc.
- Registered owner: Airada Aviation, Inc.
- Departed: ADH, ADA, OK
- Destination: ADH, ADA, OK
- Airport: ADH, Ada Municipal

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 22; commercial, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; flight hours: 2,964 total, 54 in this make and model, 2,728 as pilot in command, 211 in the last 90 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 120° at 12 knots
- Visibility: 4 statute miles
- Lowest ceiling: 700 ft overcast
- Temperature: 154 °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 19820524018699A](https://openairdocs.org/incident/19820524018699A), May 24, 1982: Robsin R22, Ada, OK, Substantial damage. Helicopter damaged during autorotation landing during flight test. Touched on left skid and rolled on 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.