# NTSB OAK77FVW21: Hughes 269B, N9542F, Las Vegas, NV, June 14, 1977

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 14, 1977
- Place: Las Vegas, NV · LAS VEGAS, NV
- Location: 36.1750° N, 115.1372° W: Placed by OpenAirDocs: center of Las Vegas, NV, within about 7 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.1750&lon=-115.1372&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report July 12, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 158207
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK77FVW21
- Page: https://openairdocs.org/ntsb/OAK77FVW21

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1129  77/6/14    LAS VEGAS,NV        HUGHES 269B         CR-  0  0  1  INSTRUCTIONAL             COMMERCIAL, AGE 41, 1174
        TIME - 1700                    N9542F              PX-  0  0  0  TRAINING                  TOTAL HOURS, 52 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          NORTH LAS VEGAS,NV          LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: DIRT BANK                                 IN FLIGHT: HOVERING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED CLEARANCE
        FACTOR(S)
           PILOT IN COMMAND - SELECTED UNSUITABLE TERRAIN
           WEATHER - HIGH DENSITY ALTITUDE
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          NONE                                                      99
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          160                                                       7
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
        REMARKS- TAIL ROTOR STRUCK SAND BANK,HELICOPTER ROLLED OVER.
```

## Aircraft

- Registration: [N9542F](https://openairdocs.org/deregistered/N9542F-2012-11-20), registration cancelled 2012-11-20, S/N 1280399, built 1969 (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

## 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 19770614014949A](https://openairdocs.org/incident/19770614014949A), Jun 14, 1977: Hughes 269B, Las Vegas, NV, Substantial damage. Tail rotor struck sand bank,helicopter rolled over.

## Other investigations on N9542F (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 OAK78FVW20](https://openairdocs.org/ntsb/OAK78FVW20), Sep 4, 1978: Hughes 269B (N9542F), Las Vegas, NV, substantial damage
- [NTSB OAK74DVW21](https://openairdocs.org/ntsb/OAK74DVW21), May 27, 1974: Hughes 269B (N9542F), Las Vegas, NV, 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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