# NTSB CHI73AEA36: Hughes 269C, N9609F, De Pauw, IN, May 22, 1973

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 22, 1973
- Place: De Pauw, IN · DE PAUW, IN
- Location: 38.3327° N, 86.2216° W: Placed by OpenAirDocs: center of Depauw, IN, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.3327&lon=-86.2216&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report June 26, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 190432
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI73AEA36
- Page: https://openairdocs.org/ntsb/CHI73AEA36

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1292  73/5/22    DE PAUW,IND         HUGHES 269C         CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1000                    N9609F              PX-  0  0  1  POWER/PIPELINE            AGE 45, 4500 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            ALL IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          LOUISVILLE,KY               LOUISVILLE,KY               UNKNOWN/NOT REPORTED
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLISION WITH GROUND/WATER: CONTROLLED                  LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL)
        FACTOR(S)
           POWERPLANT - ENGINE CONTROLS: THROTTLE-POWER LEVER ASSEMBLIES
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- THROTTL CTL TO FUEL ATTACH BOLT MISSING.INSP 3 OTR 300 ACFT,BOLTS ROTATED BY HAND COTTER KEYS WORN
```

## Aircraft

- Registration: [N9609F](https://openairdocs.org/deregistered/N9609F-2013-05-23), registration cancelled 2013-05-23, S/N 700017, built 1970 (OpenAirDocs)
- Reported make and model: HUGHES 269C
- Registry model: [Hughes 269C](https://openairdocs.org/model/hughes-269c) (registry code 4470504) (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

## 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 19730522013139A](https://openairdocs.org/incident/19730522013139A), May 22, 1973: Hughes 269C, De Pauw, IN, Substantial damage. Throttl ctl to fuel attach bolt missing. Insp 3 otr 300 acft,bolts rotated by hand cotter keys worn

## Other investigations on N9609F (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 BFO92FA144](https://openairdocs.org/ntsb/BFO92FA144), Sep 25, 1992: Hughes 269C (N9609F), East Bernstadt, KY, destroyed, 2 fatal. Probable cause: INADEQUATE MAINTENANCE INSPECTION INVOLVING FAILURE TO DETECT WEAR OF THE CLUTCH SPRING ASSEMBLY, RESULTING IN THE UNCOUPLING OF ENGINE POWER TO THE MAIN TRANSMISSION.

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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