# NTSB CHI76FEP37: Snow 600S2C, N1629S, Plainfield, WI, July 21, 1976

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 21, 1976
- Place: Plainfield, WI · PLAINFIELD, WI
- Location: 44.2175° N, 89.4969° W: Placed by OpenAirDocs: center of Plainfield, WI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.2175&lon=-89.4969&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 5, 1976
- Report: Brief approved by the director
- NTSB case key (mKey): 154713
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI76FEP37
- Page: https://openairdocs.org/ntsb/CHI76FEP37

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2389  76/7/21    PLAINFIELD,WI       SNOW 600S2C         CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 48, 10000
        TIME - 0815                    N1629S              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   TOTAL HOURS, UNK/NR IN
                                       DAMAGE-DESTROYED    OT-  0  0  0                            TYPE, INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          PLAINFIELD,WI               LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           GEAR COLLAPSED                                           LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: BLOWER,IMPELLER ASSEMBLY
           TERRAIN - ROUGH/UNEVEN
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 9999                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - GRAIN FIELDS                              TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC
          GLOVES - USED                                            GOGGLES - NOT USED
          CRASH HELMET - AVAILABLE USED                            COCKPIT CRASHPAD - INSTALLED
          CRASH BAR - INSTALLED                                    TANK/HOPPER-LOCATION - FORWARD OF PILOT
          TERRAIN-TYPE -LEVEL,FLAT                                 ELEVATION-AREA BEING TREATED-FEET -  1130
          SWATH RUN-HOW FLOWN - WIND CALM                          PROCEDURE TURNAROUND - ENTRY TO PROCEDURE TURN
        REMARKS- THE ENG INTERNAL SUPERCHARGER BLOWER BEARINGS FAILED.
```

## Aircraft

- Registration: [N1629S](https://openairdocs.org/deregistered/N1629S-1982-01-15), registration cancelled 1982-01-15, S/N 600-1177-C, built 1963 (OpenAirDocs)
- Reported make and model: SNOW 600S2C
- Registry model: [Snow S2C](https://openairdocs.org/model/snow-s2c) (registry code 8380206) (OpenAirDocs)
- Category: Airplane
- 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 19760721026569A](https://openairdocs.org/incident/19760721026569A), Jul 21, 1976: Ayres 600S2D, Plainfield, WI, Destroyed. The eng internal supercharger blower bearings failed.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.