# NTSB MKC75DER12: Bell 47G-2, N2870B, Meridan, MN, August 5, 1974

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 5, 1974
- Place: Meridan, MN · MERIDAN, MN
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 22, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 138797
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC75DER12
- Page: https://openairdocs.org/ntsb/MKC75DER12

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3400   74/8/5    MERIDAN,MINN        BELL 47G-2          CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 22, 334
        TIME - 1850                    N2870B              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   TOTAL HOURS, 229 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          MERIDAN,MINN                LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ROLL OVER                                                TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
        FACTOR(S)
           INSTRUMENTS/EQUIPMENT AND ACCESSORIES - MISCELLANEOUS EQUIPMENT: SPRAY,DUSTING EQUIPMENT
           MISCELLANEOUS - FOREIGN MATERIAL AFFECTING NORMAL OPERATIONS
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL -  334                       KIND OF OPERATION - FERTILIZING (LIQUID)
          KIND OF CROP - CORN                                      TYPE OF CHEMICAL USED - UNKNOWN/NOT REPORTED
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  1148                SWATH RUN-HOW FLOWN - WIND CALM
        REMARKS- DUMP VALVE SOLENOID PLUNGER HAD ACCUMULATION OF FERTILIZER.WOULD NOT OPERATE.
```

## Aircraft

- Registration: [N2870B](https://openairdocs.org/aircraft/N2870B), registered now, S/N 1975, built 1957 (OpenAirDocs)
- Reported make and model: BELL 47G-2
- Registry model: [Bell 47G-2](https://openairdocs.org/model/bell-47g-2) (registry code 1181008) (OpenAirDocs)
- Registry engine: [Lycoming VO-435 series](https://openairdocs.org/engine/lycoming-vo-435-series) (registry code 41525, 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 19740805032769A](https://openairdocs.org/incident/19740805032769A), Aug 5, 1974: Bell 47G2, Meridan, MN, Substantial damage. Dump valve solenoid plunger had accumulation of fertilizer. Would not operate.

## Other investigations on N2870B (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 FTW74FPG23](https://openairdocs.org/ntsb/FTW74FPG23), Sep 18, 1973: Bell 47G2 (N2870B), Viola, AR, substantial damage
- [NTSB LAX68A0050](https://openairdocs.org/ntsb/LAX68A0050), Nov 16, 1967: Bell 47G-2 (N2870B), Huntington, 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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