# NTSB CHI72FEE77: Piper PA-23, N2173P, Spring Grove, IL, April 29, 1972

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: April 29, 1972
- Place: Spring Grove, IL · SPRING GROVE, IL
- Location: 42.4507° N, 88.2402° W: Placed by OpenAirDocs: center of Spring Grove, IL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.4507&lon=-88.2402&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report October 16, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 165856
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI72FEE77
- Page: https://openairdocs.org/ntsb/CHI72FEE77

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0435  72/4/29    SPRING GROVE,ILL    PIPER PA-23         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 43, 297
        TIME - 1430                    N2173P              PX-  0  0  2  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 26 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - SHELDON RLA
        DEPARTURE POINT             INTENDED DESTINATION
          WAUKESHA,WIS                SPRING GROVE,ILL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           UNDERSHOOT                                               LANDING: FINAL APPROACH
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED DISTANCE,SPEED,AND ALTITUDE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - POORLY PLANNED APPROACH
           WEATHER - DOWNDRAFT,UPDRAFTS
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        WEATHER BRIEFING - BRIEFED BY FLIGHT SERVICE PERSONNEL, BY PHONE
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OVERCAST                                                  10000
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          HAZE                                                      54
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          150                                                       10
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
        REMARKS- LND ABOUT 5 FT SHORT OF RWY ON UPSLOPE. GR HIT RAISED THRESHOLD. PLT OVERSHOT TURN TO FINAL APCH.
```

## Aircraft

- Registration: [N2173P](https://openairdocs.org/deregistered/N2173P-2011-07-11), registration cancelled 2011-07-11, S/N 23-779, built 1956 (OpenAirDocs)
- Reported make and model: PIPER PA-23
- Registry model: [Piper PA-23](https://openairdocs.org/model/piper-pa-23) (registry code 7102302) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Sheldon Rla

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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