# NTSB CHI75AC092: Piper PA-30, N7833Y, Marion, IL, May 31, 1975

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: May 31, 1975
- Place: Marion, IL · MARION, IL
- Location: 37.7342° N, 88.9443° W: Placed by OpenAirDocs: center of Marion, IL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.7342&lon=-88.9443&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 4 fatal
- Status: Completed, report July 14, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 149346
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI75AC092
- Page: https://openairdocs.org/ntsb/CHI75AC092-149346

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1647  75/5/31    MARION,IL           PIPER PA-30         CR-  1  0  0  NONCOMMERCIAL             COMMERCIAL, AGE 41, 591
        TIME - 1212                    N7833Y              PX-  3  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 38 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - WILLIAMSON CO
        DEPARTURE POINT             INTENDED DESTINATION
          SPRINGFIELD,MO              MARION,IL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              IN FLIGHT: DESCENDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - ATTEMPTED OPERATION BEYOND EXPERIENCE/ABILITY LEVEL
           PILOT IN COMMAND - SPATIAL DISORIENTATION
           PILOT IN COMMAND - EXCEEDED DESIGNED STRESS LIMITS OF AIRCRAFT
           AIRFRAME - WINGS: SPARS
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
           WEATHER - LOW CEILING
           WEATHER - TURBULENCE, ASSOCIATED W/CLOUDS AND/OR THUNDERSTORMS
        WEATHER BRIEFING - BRIEFED BY FLIGHT SERVICE PERSONNEL, BY PHONE
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OVERCAST                                                  600
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          2 MILES OR LESS                                          RAIN
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          FOG                                                       62
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          280                                                       18
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          IFR                                                      IFR
        REMARKS- 6HRS ACTUAL INST LOGGED,3HRS SINCE 10/74.ALL WING SPARS BENT UPWARDS PRIOR TO FAILURE & SEPARATION
```

## Aircraft

- Registration: [N7833Y](https://openairdocs.org/deregistered/N7833Y-1975-08-14), registration cancelled 1975-08-14, S/N 30-910 (OpenAirDocs)
- Reported make and model: PIPER PA-30
- Registry model: [Piper PA-30](https://openairdocs.org/model/piper-pa-30) (registry code 7103002) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed
- Airport: Williamson Co

## 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 19750531018279A](https://openairdocs.org/incident/19750531018279A), May 31, 1975: Piper PA30, Marion, IL, Destroyed, 3 fatal. 6HRS actual inst logged,3HRS since 10/74.all wing spars bent upwards prior to failure & separation

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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