# NTSB CHI78FEP68: Mooney M20F, N9275V, Racine, WI, September 11, 1978

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 11, 1978
- Place: Racine, WI · RACINE, WI
- Location: 42.7256° N, 87.8142° W: Placed by OpenAirDocs: center of Racine, WI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.7256&lon=-87.8142&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report February 6, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 139921
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI78FEP68
- Page: https://openairdocs.org/ntsb/CHI78FEP68

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3729  78/9/11    RACINE,WI           MOONEY M20F         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 48, 1238
        TIME - 2130                    N9275V              PX-  0  0  1  BUSINESS                  TOTAL HOURS, 379 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - HORLICK
        DEPARTURE POINT             INTENDED DESTINATION
          PLYMOUTH,MI                 MILWAUKEE,WI
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           WHEELS-UP                                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           POWERPLANT - IGNITION SYSTEM: SPARK PLUG
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        FACTOR(S)
           POWERPLANT - ENGINE CONTROLS: THROTTLE-POWER LEVER ASSEMBLIES
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER ALIGNMENT/ADJUSTMENT
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- SPARKPLUGS WORN TO MAX LMT OR BEYOND.PWR BOOST CABLE SLIPPED AFT OF LOCKING CLAMP.
```

## Aircraft

- Registration: [N9275V](https://openairdocs.org/aircraft/N9275V), registered now, S/N 690076, built 1969 (OpenAirDocs)
- Reported make and model: MOONEY M20F
- Registry model: [Mooney M20F](https://openairdocs.org/model/mooney-m20f) (registry code 5870214) (OpenAirDocs)
- Registry engine: [Lycoming I0360 series](https://openairdocs.org/engine/lycoming-i0360-series) (registry code 41515, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Horlick

## 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 19780911030799A](https://openairdocs.org/incident/19780911030799A), Sep 11, 1978: Mooney M20F, Racine, WI, Substantial damage. Sparkplugs worn to max lmt or beyond. Pwr boost cable slipped aft ocking clamp.

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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