# NTSB DEN73FTE77: Hughes 269B, N9333V, Broomfield, CO, May 21, 1973

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: May 21, 1973
- 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: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 1 uninjured
- Status: Completed, report June 25, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 190635
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN73FTE77
- Page: https://openairdocs.org/ntsb/DEN73FTE77

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1153  73/5/21    BROOMFIELD,COLO     HUGHES 269B         CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 0650                    N9333V              PX-  0  0  0  DUAL                      AGE 27, 3275 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            350 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - JEFFCO
        DEPARTURE POINT             INTENDED DESTINATION
          BROOMFIELD,COLO             LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
           ROLL OVER                                                LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           DUAL STUDENT - IMPROPER OPERATION OF FLIGHT CONTROLS
           PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SIMULATED CONDITIONS
        REMARKS- PRACTICE AUTOROTATIVE LDG. M/R SEVERED TAIL BOOM
```

## Aircraft

- Registration: [N9333V](https://openairdocs.org/aircraft/N9333V), registered now, S/N 53-0207, built 1963 (OpenAirDocs)
- Reported make and model: HUGHES 269B
- Registry model: [Hughes 269A](https://openairdocs.org/model/hughes-269a) (registry code 4470402) (OpenAirDocs)
- Registry engine: [Lycoming HO-360 series](https://openairdocs.org/engine/lycoming-ho-360-series) (registry code 41513, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Jeffco

## 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 19730521011879A](https://openairdocs.org/incident/19730521011879A), May 21, 1973: Hughes 269A, Broomfield, CO, Substantial damage. Practice autorotative ldg. M/r severed tail boom

## Other investigations on N9333V (2)

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 CHI08CA097](https://openairdocs.org/ntsb/CHI08CA097), Mar 21, 2008: Hughes 269A (N9333V), Franklin Furnac, OH, substantial damage. Probable cause: The fuel exhaustion during cruise flight and the unsuitable terrain encountered by the pilot-in-command. A contributing factor was the trees.
- [NTSB FTW70FQD10](https://openairdocs.org/ntsb/FTW70FQD10), Apr 13, 1970: Hughes 269B (N9333V), Pecos, TX, 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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