# NTSB MKC71DCQ18: Brantly 305, N2221U, Emporia, KS, September 1, 1970

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 1, 1970
- Place: Emporia, KS · EMPORIA, KS
- Location: 38.4024° N, 96.1946° W: Placed by OpenAirDocs: center of Emporia, KS, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.4024&lon=-96.1946&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 13, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 158832
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC71DCQ18
- Page: https://openairdocs.org/ntsb/MKC71DCQ18

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4552   70/9/1    EMPORIA,KANS        BRANTLY 305         CR-  0  0  1  MISCELLANEOUS             ATP,FLIGHT INSTR., AGE
        TIME - 1800                    N2221U              PX-  0  0  0  FERRY                     32, 5900 TOTAL HOURS, 9
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - EMPORIA
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          KANSAS CTY,KANS             WICHITA,KANS                 EMPORIA,KANS
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: TAIL ROTOR                      TAXI: GROUND TAXI FROM LANDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - ATTEMPTED OPERATION W/KNOWN DEFICIENCIES IN EQUIPMENT
           ROTORCRAFT - ROTOR ASSEMBLIES: TAIL ROTOR BLADES
           ROTORCRAFT - ROTOR ASSEMBLIES: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - PREVIOUS DAMAGE
           MISCELLANEOUS ACTS,CONDITIONS - VIBRATION,EXCESSIVE
        REMARKS- T/R VIBRATED DURG TAXI SEPD DURG ROTOR SPEED DECAY.T/R GUARD FOUND BKN PRIOR THIS FLT,CAUSE UNKN.
```

## Aircraft

- Registration: [N2221U](https://openairdocs.org/deregistered/N2221U-2012-10-17), registration cancelled 2012-10-17, S/N 1034, built 1966 (OpenAirDocs)
- Reported make and model: BRANTLY 305
- Registry model: [Brantly 305](https://openairdocs.org/model/brantly-305) (registry code 1440602) (OpenAirDocs)
- Registry engine: [Lycoming VO-540 series](https://openairdocs.org/engine/lycoming-vo-540-series) (registry code 41534, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Emporia

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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