# NTSB CHI75FEI41: Cessna A188, N21813, Avon, OH, April 11, 1975

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: April 11, 1975
- Place: Avon, OH · AVON, OH
- Location: 41.4451° N, 82.0051° W: Placed by OpenAirDocs: center of Avon, OH, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.4451&lon=-82.0051&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report November 4, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 148070
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI75FEI41
- Page: https://openairdocs.org/ntsb/CHI75FEI41

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2941  75/4/11    AVON,OH             CESSNA A188         CR-  0  1  0  COMMERCIAL                COMMERCIAL, AGE 35, 1317
        TIME - 1145                    N21813              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   TOTAL HOURS, 490 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - BOSWORTH
        DEPARTURE POINT             INTENDED DESTINATION
          AVON,OH                     LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: PROPELLER                       TAKEOFF: INITIAL CLIMB
           COLLIDED WITH: TREES                                     LANDING: FINAL APPROACH
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL)
           POWERPLANT - PROPELLER AND ACCESSORIES: HYDRAULIC PITCH CONTROL MECHANISM
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY INSTALLED
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER CLEARANCE-TOLERANCE
           TERRAIN - HIGH OBSTRUCTIONS
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
                                  PROP/ENGINE VIBRATION
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - UNKNOWN/NOT REPORTED       KIND OF OPERATION - FERTILIZING (DUST)
          KIND OF CROP - UNKNOWN/NOT REPORTED                      TYPE OF CHEMICAL USED - DRY CHEMICAL-NONTOXIC
          PILOT' S SEAT BELT -FASTENED-PROPERLY                    GLOVES - USED
          GOGGLES - NOT USED                                       CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - INSTALLED                             CRASH BAR - INSTALLED
          ELEVATION-AREA BEING TREATED-FEET -  700                 SWATH RUN-HOW FLOWN - UNKNOWN/NOT REPORTED
        REMARKS- INSUFFICIENT THREAD CTC BTWN BLADE ACTUATING PIN AND MATING HOLE LOSS OF PITCH CTL.
```

## Aircraft

- Registration: [N21813](https://openairdocs.org/deregistered/N21813-2012-08-10), registration cancelled 2012-08-10, S/N 18801054, built 1972 (OpenAirDocs)
- Reported make and model: CESSNA A188
- Registry model: [Cessna A188B](https://openairdocs.org/model/cessna-a188b) (registry code 2073005) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Bosworth

## 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 19750411018179A](https://openairdocs.org/incident/19750411018179A), Apr 11, 1975: Cessna A188B, Avon, OH, Substantial damage. Insufficient thread ctc btwn blade actuating pin and mating hole loss of pitch ctl.

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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