# NTSB CHI75DEP17: Piper PA-30, N7690Y, Madison, WI, August 4, 1974

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 4, 1974
- Place: Madison, WI · MADISON, WI
- Location: 43.0731° N, 89.4012° W: Placed by OpenAirDocs: center of Madison, WI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.0731&lon=-89.4012&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report September 20, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 134531
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI75DEP17
- Page: https://openairdocs.org/ntsb/CHI75DEP17

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2353   74/8/4    MADISON,WIS         PIPER PA-30         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 49, 1477
        TIME - 1000                    N7690Y              PX-  0  0  3  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 261 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          MUNCIE,IND                  OSHKOSH,WIS
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              IN FLIGHT: DESCENDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - EXCEEDED DESIGNED STRESS LIMITS OF AIRCRAFT
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
           WEATHER - TURBULENCE, ASSOCIATED W/CLOUDS AND/OR THUNDERSTORMS
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OVERCAST                                                  1000
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          UNKNOWN/NOT REPORTED                                     UNKNOWN/NOT REPORTED
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TYPE OF WEATHER CONDITIONS
          UNKNOWN/NOT REPORTED                                     IFR
        TYPE OF FLIGHT PLAN
          IFR
        REMARKS- EXCEEDED VNE.STAB BENT.
```

## Aircraft

- Registration: [N7690Y](https://openairdocs.org/deregistered/N7690Y-2025-12-22), registration cancelled 2025-12-22, S/N 30-771, built 1965 (OpenAirDocs)
- Reported make and model: PIPER PA-30
- Registry model: [Piper PA-30](https://openairdocs.org/model/piper-pa-30) (registry code 7103002) (OpenAirDocs)
- Registry engine: [Lycoming IO-320 series](https://openairdocs.org/engine/lycoming-io-320-series) (registry code 41509, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## 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 19740804027319A](https://openairdocs.org/incident/19740804027319A), Aug 4, 1974: Piper PA30, Madison, WI, Substantial damage. Exceeded vne. Stab bent.

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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