# NTSB LAX83LA271: Robinson R22, N83721, Valencia, CA, June 9, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 9, 1983, 11:30 local (18:30 UTC)
- Place: Valencia, CA
- Coordinates: 34.42971, -118.509521 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.4297&lon=-118.5095&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 23741
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX83LA271
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/23741/pdf
- Page: https://openairdocs.org/ntsb/LAX83LA271

## Sequence of events

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

- Loss of control - in flight, landing - flare/touchdown
  - tail rotor/anti-torque control - improper use of, pilot in command (cause)
  - lack of total experience in kind of aircraft, pilot in command (contributing factor)
  - diverted attention, pilot in command (contributing factor)
  - self-induced pressure, pilot in command (cause)
  - directional control - not maintained, pilot in command (cause)
- In flight collision with terrain/water, landing - flare/touchdown

## Analysis

THE RATED AIRPLANE PLT WAS ON A SOLO INSTRUCTIONAL FLT IN A ROBINSON R22 HELICOPTER. DURING HIS 3RD LANDING, THE HELICOPTER BEGAN TO ROTATE AT APRX 3 FT AGL. AFTER COMPLETING ABOUT 1 1/2 REVOLUTIONS, THE STUDENT ALLOWED THE ACFT TO IMPACT ON THE LANDING AREA & THE HELICOPTER WAS DAMAGED. THE STUDENT STATED THAT HE LOST HIS CONCENTRATION DURING THE LANDING, THEN PANICKED & FAILED TO APPLY PROPER ANTITORQUE PEDDLE CORRECTION TO STOP THE ROTATION.

## Aircraft

- Registration: [N83721](https://openairdocs.org/deregistered/N83721-2013-04-29), registration cancelled 2013-04-29, S/N 0317, built 1982 (OpenAirDocs)
- Reported make and model: ROBINSON R22
- Registry model: [Robinson Helicopter R22](https://openairdocs.org/model/robinson-helicopter-r22) (registry code 7640102) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Serial number: 317
- Airframe hours: 80
- Engines: LYCOMING O-320-B2C 124 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Registered owner: George Cojerean
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, December 23, 1982, 80 hours before

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 64; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: right; flight hours: 821 total, 81 in this make and model, 700 as pilot in command, 81 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 210° at 4 knots
- Visibility: 7 statute miles
- Lowest ceiling: none
- Temperature: 70 °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 19830609027679A](https://openairdocs.org/incident/19830609027679A), Jun 9, 1983: Robsin R22, Valencia, CA, Substantial damage. Student lost control on solo landing. Helicopter began to spin and struck the ground from a hover.

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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