# NTSB CHI80FEI02: Robinson R-22, N9023Z, Marlboro, OH, October 20, 1980

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: October 20, 1980
- Place: Marlboro, OH · MARLBORO, OH
- Location: 40.9506° N, 81.2169° W: Placed by OpenAirDocs: center of Marlboro, OH, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.9506&lon=-81.2169&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report November 5, 1980
- Report: Brief approved by the director
- NTSB case key (mKey): 128917
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI80FEI02
- Page: https://openairdocs.org/ntsb/CHI80FEI02-128917

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2475  80/10/20 NR.MARLBORO,OH        ROBINSON R-22       CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 1520                    N9023Z              PX-  0  0  0  DUAL                      AGE 32, 1380 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            204 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - SUNSET
        DEPARTURE POINT             INTENDED DESTINATION
          AKRON-CANTON,OH             RETURN
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           DUAL STUDENT - MISJUDGED DISTANCE AND ALTITUDE
           PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT
```

## Aircraft

- Registration: N9023Z (not matched to a registry record)
- Reported make and model: ROBINSON R-22
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Sunset

## 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 19801020057819A](https://openairdocs.org/incident/19801020057819A), Oct 20, 1980: Robsin R22, Marlboro, OH, Substantial damage. Student allowed rotor RPM to decay on practice autorotation. CFI unable to correct. Made hard crash landing.

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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