# NTSB NYC76FFJ03: Hughes 269B, N9471F, Mumford, NY, August 20, 1975

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: August 20, 1975
- Place: Mumford, NY · MUMFORD, NY
- Location: 42.9928° N, 77.8603° W: Placed by OpenAirDocs: center of Mumford, NY, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.9928&lon=-77.8603&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report October 15, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 150129
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC76FFJ03
- Page: https://openairdocs.org/ntsb/NYC76FFJ03

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2511  75/8/20    MUMFORD,NY          HUGHES 269B         CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 25, 1325
        TIME - 1755                    N9471F              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 810 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          MUMFORD,NY                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: WIRES/POLES                               IN FLIGHT: SWATH RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO SEE AND AVOID OBJECTS OR OBSTRUCTIONS
        FACTOR(S)
           TERRAIN - HIDDEN OBSTRUCTIONS
           TERRAIN - HIGH OBSTRUCTIONS
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -  400                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - CORN                                      TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - NOT USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - SIDES                             TERRAIN-TYPE -ROLLING
          ELEVATION-AREA BEING TREATED-FEET -  560                 SWATH RUN-HOW FLOWN - WIND CALM
        REMARKS- HELO STRUCK WIRES ON TREE-OBSCURED POLES DRG SWATH RUN.
```

## Aircraft

- Registration: [N9471F](https://openairdocs.org/deregistered/N9471F-2015-05-05), registration cancelled 2015-05-05, S/N 106-0267, 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: Destroyed

## 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 19750820027159A](https://openairdocs.org/incident/19750820027159A), Aug 20, 1975: Hughes 269B, Mumford, NY, Destroyed. Helo struck wires on tree-obscured poles drg swath run.

## Other investigations on N9471F (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 CHI06LA124](https://openairdocs.org/ntsb/CHI06LA124), May 3, 2006: Hughes 269B (N9471F), Sullivan, OH, substantial damage. Probable cause: Fatigue failure of the fuselage-to-tail boom cluster fitting, and the secondary failure of the tail rotor drive shaft. An additional cause was the incomplete compliance with an applicable…
- [NTSB CHI84LA203](https://openairdocs.org/ntsb/CHI84LA203), May 20, 1984: Hughes 269B (N9471F), Toulon, IL, 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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