# NTSB NYC87LA134: Robinson R-22, N9070F, Ellington, CT, April 29, 1987

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: April 29, 1987, 14:00 local (18:00 UTC)
- Place: Ellington, CT
- Location: 41.9040° N, 72.4698° W: Placed by OpenAirDocs: center of Ellington, CT, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.9040&lon=-72.4698&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report October 7, 1988
- Report: Approved by Office Director
- NTSB case key (mKey): 30636
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC87LA134
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/30636/pdf
- Page: https://openairdocs.org/ntsb/NYC87LA134

## Sequence of events

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

- Loss of engine power(total) - nonmechanical, landing
  - emergency procedure - simulated, pilot in command(cfi) (cause)
- Loss of control - in flight, descent - emergency
  - supervision - inadequate, pilot in command(cfi) (cause)
  - aircraft handling - improper, dual student
- Dragged wing,rotor,pod,float or tail/skid, landing

## Analysis

DURING AN INSTRUCTIONAL FLIGHT, THE INSTRUCTOR PILOT SIMULATED A FORCED LANDING AT ABOUT 250 FEET AND 60 KIAS. THE STUDENT PILOT AT THIS TIME ENTERED AN AUTOROTATION AND THE HELICOPTER STARTED TO DESCEND. COLLECTIVE WAS PULLED BUT THIS FAILED TO STOP THE DESCENT AND THE AIRCRAFT CONTACTED THE GROUND IN A TAIL LOW ATTITUDE. AIRCRAFT SLID FORWARD IN A LEVEL ATTITUDE AND THE RIGHT SKID DUG INTO THE SURFACE CAUSING SUBSTANTIAL DAMAGE.

## Aircraft

- Registration: [N9070F](https://openairdocs.org/deregistered/N9070F-2017-05-23), registration cancelled 2017-05-23, S/N 0185, built 1981 (OpenAirDocs)
- Reported make and model: ROBINSON R-22
- 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: 0185
- Airframe hours: 1998
- Engines: LYCOMING O-320-A2C 124 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Registered owner: Northeast Helicopter, Inc.
- Airworthiness certificate: Standard, Normal
- Departed: 7B9
- Airport: Windham

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 23; flight instructor, commercial; instrument ratings: helicopter; medical: class 1, valid medical--w/ waivers/lim; seat: right; flight hours: 2,556 total, 2,504 in this make and model, 2,400 as pilot in command, 203 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 270° at 15 knots, gusting 20
- Visibility: 20 statute miles
- Temperature: 50 °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 19870429021689A](https://openairdocs.org/incident/19870429021689A), Apr 29, 1987: Robsin R22, Willimantic, CT, Substantial damage. Collided with the ground during a practice autorotated landing. Student allowed rotor decay. CFI failed correction.

## Other investigations on N9070F (1)

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.

- [NTSB NYC99FA157](https://openairdocs.org/ntsb/NYC99FA157), Jun 23, 1999: Robinson R-22 (N9070F), Hurricane, WV, substantial damage, 1 fatal. Probable cause: A loss of engine power for undetermined reasons. Contributing to the accident was the pilot's failure to maintain rotor rpm and the transmission wires.

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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