# NTSB NYC72FIG06: Bell 47D-1, N4253A, Union Bridge, MD, August 12, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 12, 1971
- Place: Union Bridge, MD · UNION BRIDGE, MD
- Location: 39.5709° N, 77.1727° W: Placed by OpenAirDocs: center of Union Bridge, MD, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.5709&lon=-77.1727&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report March 30, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 162848
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC72FIG06
- Page: https://openairdocs.org/ntsb/NYC72FIG06

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2992  71/8/12    UNION BRIDGE,MD     BELL 47D-1          CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1230                    N4253A              PX-  0  0  0  AERIAL APPLICATION        AGE 28, 2474 TOTAL HOURS,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            2404 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          UNION BRIDGE,MD             LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: WIRES/POLES                               IN FLIGHT: STARTING SWATH RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO SEE AND AVOID OBJECTS OR OBSTRUCTIONS
        FACTOR(S)
           TERRAIN - HIGH OBSTRUCTIONS
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -   25                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - CORN                                      TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - SIDES                             TERRAIN-TYPE -LEVEL,FLAT
          SWATH RUN-HOW FLOWN - UPWIND
```

## Aircraft

- Registration: N4253A (not matched to a registry record)
- Reported make and model: BELL 47D-1
- Category: Helicopter
- Engines: reciprocating
- Damage: Destroyed

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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