# NTSB DEN76FTE70: Hughes 269B, N9440F, Broomfield, CO, May 18, 1976

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 18, 1976
- Place: Broomfield, CO · BROOMFIELD, CO
- Location: 39.9205° N, 105.0867° W: Placed by OpenAirDocs: center of Broomfield, CO, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.9205&lon=-105.0867&mi=10
- Phase of flight: [Emergency descent](https://openairdocs.org/ntsb-phases/600) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report November 17, 1976
- Report: Brief approved by the director
- NTSB case key (mKey): 153588
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN76FTE70
- Page: https://openairdocs.org/ntsb/DEN76FTE70

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3124  76/5/18    BROOMFIELD,CO       HUGHES 269B         CR-  0  0  2  INSTRUCTIONAL             ATP,FLIGHT INSTR., AGE
        TIME - 1420                    N9440F              PX-  0  0  0  DUAL                      28, 5227 TOTAL HOURS, 300
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            IN TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - JEFFERSON COUNTY
        DEPARTURE POINT             INTENDED DESTINATION
          BROOMFIELD,CO               LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: AUTOROTATIVE DESCENT
           ROLL OVER                                                LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           POWERPLANT - FUEL SYSTEM: FUEL INJECTION SYSTEM
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER CLEARANCE-TOLERANCE
           MISCELLANEOUS ACTS,CONDITIONS - FUEL STARVATION
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SIMULATED CONDITIONS
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- AUTO MIXT CTL INOP. ACFT CONTACTED SOFT GROUND WITH SIDEWARD MOVEMENT.
```

## Aircraft

- Registration: [N9440F](https://openairdocs.org/aircraft/N9440F), registered now, S/N 55-0195, built 1965 (OpenAirDocs)
- Reported make and model: HUGHES 269B
- Registry model: [Hughes 269B](https://openairdocs.org/model/hughes-269b) (registry code 4470502) (OpenAirDocs)
- Registry engine: [Lycoming HIO-360-A1A](https://openairdocs.org/engine/lycoming-hio-360-a1a) (registry code 41885, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Jefferson County

## 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 19760518012999A](https://openairdocs.org/incident/19760518012999A), May 18, 1976: Hughes 269B, Broomfield, CO, Substantial damage. Auto mixt ctl inop. Acft contacted soft ground with sideward movement.

## Other investigations on N9440F (5)

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 DEN75FTE24](https://openairdocs.org/ntsb/DEN75FTE24), Sep 8, 1974: Hughes 269B (N9440F), Ft.Collins, CO, substantial damage
- [NTSB DEN74FTE30](https://openairdocs.org/ntsb/DEN74FTE30), Nov 14, 1973: Hughes 269B (N9440F), Broomfield, CO, substantial damage
- [NTSB OAK72FVW25](https://openairdocs.org/ntsb/OAK72FVW25), Mar 19, 1972: Hughes 269B (N9440F), Las Vegas, NV, substantial damage
- [NTSB LAX70D0213](https://openairdocs.org/ntsb/LAX70D0213), Nov 14, 1969: Hughes 269B (N9440F), Phoenix, AZ, substantial damage
- [NTSB LAX66A0085](https://openairdocs.org/ntsb/LAX66A0085), May 7, 1966: Hughes 269B (N9440F), Idlewild, CA, 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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