# NTSB CHI72FEP37: Piper PA-20, N6978K, Twin Lakes, WI, April 15, 1972

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: April 15, 1972
- Place: Twin Lakes, WI · TWIN LAKES, WI
- Location: 42.5156° N, 88.2504° W: Placed by OpenAirDocs: center of Twin Lakes, WI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.5156&lon=-88.2504&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report February 3, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 166305
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI72FEP37
- Page: https://openairdocs.org/ntsb/CHI72FEP37

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1501  72/4/15    TWIN LAKES,WIS      PIPER PA-20         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 1600                    N6978K              PX-  0  0  2  PLEASURE/PERSONAL TRANSP  AGE 42, 872 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            1 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - VINCENT
        DEPARTURE POINT             INTENDED DESTINATION
          WILMOT,WIS                  LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           MISCELLANEOUS                                            IN FLIGHT: NORMAL CRUISE
           HARD LANDING                                             LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           AIRFRAME - FUSELAGE: SKIN AND ATTACHMENTS
           MISCELLANEOUS ACTS,CONDITIONS - DETERIORATED
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           PILOT IN COMMAND - IMPROPER LEVEL OFF
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  SUSPECTED OR KNOWN AIRCRAFT DAMAGE
        REMARKS- FABRIC TORE PARTIALLY OFF TOP OF FUSELAGE DURG FLT.PLT LVLD OFF HI,CLSD THROTTLE,ACFT DROPPED.
```

## Aircraft

- Registration: [N6978K](https://openairdocs.org/aircraft/N6978K), registered now, S/N 20-81 (OpenAirDocs)
- Reported make and model: PIPER PA-20
- Registry model: [Piper PA-20](https://openairdocs.org/model/piper-pa-20) (registry code 7102002) (OpenAirDocs)
- Registry engine: [Lycoming 0-290 series](https://openairdocs.org/engine/lycoming-0-290-series) (registry code 41506, 4 cycle) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Vincent

## Other investigations on N6978K (1)

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 UNK64X1988](https://openairdocs.org/ntsb/UNK64X1988), May 28, 1964: Piper PA20 (N6978K), Center, CO, 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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