# NTSB MKC76FCG73: Monocoupe D-145, N86570, Grain Valley, MO, May 20, 1976

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 20, 1976
- Place: Grain Valley, MO · GRAIN VALLEY, MO
- Location: 39.0152° N, 94.2138° W: Placed by OpenAirDocs: center of Grain Valley, MO, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.0152&lon=-94.2138&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report June 23, 1976
- Report: Brief approved by the director
- NTSB case key (mKey): 153287
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC76FCG73
- Page: https://openairdocs.org/ntsb/MKC76FCG73

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1074  76/5/20    GRAIN VALLEY,MO     MONOCOUPE D-145     CR-  0  0  1  NONCOMMERCIAL             ATP,FLIGHT INSTR., AGE
        TIME - 1700                    N86570              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  52, 4775 TOTAL HOURS, 50
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - EAST KANSAS CITY
        DEPARTURE POINT             INTENDED DESTINATION
          GRAIN VALLEY,MO             LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL: MUSH                                              TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - PREMATURE LIFT-OFF
           PILOT IN COMMAND - IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SUNGLARE
           WEATHER - UNFAVORABLE WIND CONDITIONS
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  RELATIVE BEARING OF WIND
          NONE                                                     LEFT QUARTERING HEAD WIND 293-337 DEGREES
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          180                                                       10
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
        REMARKS- WIND GUSTING TO 15KTS.
```

## Aircraft

- Registration: [N86570](https://openairdocs.org/aircraft/N86570), registered now, S/N D-122, built 1935 (OpenAirDocs)
- Reported make and model: MONOCOUPE D-145
- Registry model: [Universal Moulded Products MONOCOUPE D-145](https://openairdocs.org/model/universal-moulded-products-monocoupe-d-145) (registry code 9250502) (OpenAirDocs)
- Registry engine: [Warner SS40&50](https://openairdocs.org/engine/warner-ss40-50) (registry code 64503, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: East Kansas City

## 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 19760520013029A](https://openairdocs.org/incident/19760520013029A), May 20, 1976: Unipro MONOCOUPD145, Grain Valley, MO, Substantial damage. Wind gusting to 15KTS.

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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