# NTSB CHI81FEG15: Robinson R22, N9015R, Cincinnati, OH, August 6, 1981

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 6, 1981
- Place: Cincinnati, OH · CINCINNATI, OH
- Location: 39.1035° N, 84.5153° W: Placed by OpenAirDocs: center of Cincinnati, OH, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.1035&lon=-84.5153&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report September 22, 1981
- Report: Brief approved by the director
- NTSB case key (mKey): 125060
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI81FEG15
- Page: https://openairdocs.org/ntsb/CHI81FEG15

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1715   81/8/6    CINCINNATI,OH       ROBINSON R22        CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 2045                    N9015R              PX-  0  0  0  DUAL                      AGE 42, 3358 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            186 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - LUNKEN
        DEPARTURE POINT             INTENDED DESTINATION
          CINCINNATI,OH               LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE                                         IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: TAIL ROTOR DRIVE SHAFT ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
           MISCELLANEOUS ACTS,CONDITIONS - VIBRATION,EXCESSIVE
        REMARKS- SUPPORT BRACKET FOR TAIL ROTOR DRIVE SHAFT DAMPER,PN A041-1,FAILED.DRIVE SHAFT BGN SVR VIBRATION.
```

## Aircraft

- Registration: [N9015R](https://openairdocs.org/deregistered/N9015R-1983-05-25), registration cancelled 1983-05-25, S/N 0010 (OpenAirDocs)
- Reported make and model: ROBINSON R22
- Registry model: [Robinson Helicopter R22](https://openairdocs.org/model/robinson-helicopter-r22) (registry code 7640102) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Lunken

## 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 19810806048229A](https://openairdocs.org/incident/19810806048229A), Aug 6, 1981: Robsin R22, Cincinnati, OH, Substantial damage. Bracket holding tail rotor drive shaft failed during training flight.

## Other investigations on N9015R (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 CHI83FA023](https://openairdocs.org/ntsb/CHI83FA023), Oct 21, 1982: Robinson R-22 (N9015R), Indian Hill, OH, destroyed, 1 fatal

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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