# NTSB CHI72FLQ22: Hughes 269B, N9470F, Louisville, KY, December 4, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: December 4, 1971
- Place: Louisville, KY · LOUISVILLE, KY
- Location: 38.2542° N, 85.7594° W: Placed by OpenAirDocs: center of Louisville, KY, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.2542&lon=-85.7594&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report April 17, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 164498
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI72FLQ22
- Page: https://openairdocs.org/ntsb/CHI72FLQ22

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3350   71/12/4   LOUISVILLE,KY       HUGHES 269B         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 47, 758
        TIME - 1545                    N9470F              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 45 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          LOUISVILLE,KY               LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
           PILOT IN COMMAND - MISJUDGED SPEED AND ALTITUDE
           MISCELLANEOUS ACTS,CONDITIONS - SIMULATED CONDITIONS
        REMARKS- PLT MADE LATE RCVRY W PWR IN PRACTICE AUTO,LOST ROTOR RPM.
```

## Aircraft

- Registration: [N9470F](https://openairdocs.org/deregistered/N9470F-2013-05-23), registration cancelled 2013-05-23, S/N 106-0266, built 1966 (OpenAirDocs)
- Reported make and model: HUGHES 269B
- Registry model: [Hughes 269B](https://openairdocs.org/model/hughes-269b) (registry code 4470502) (OpenAirDocs)
- Registry engine: [Lycoming I0360 series](https://openairdocs.org/engine/lycoming-i0360-series) (registry code 41515, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage

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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