# NTSB MKC76IK064: Piper PA-23, N4312Y, Rich Hill, MO, June 26, 1976

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Closed
- Date: June 26, 1976
- Place: Rich Hill, MO · RICH HILL, MO
- Location: 38.0959° N, 94.3635° W: Placed by OpenAirDocs: center of Rich Hill, MO, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.0959&lon=-94.3635&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report January 21, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 155055
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC76IK064
- Page: https://openairdocs.org/ntsb/MKC76IK064

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
5-0021  76/6/26  NR.RICH HILL,MO       PIPER PA-23         CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1430                    N4312Y              PX-  0  0  3  AIR TAXI-PASSG            AGE 42, 707 TOTAL HOURS,
                                       DAMAGE-MINOR        OT-  0  0  0                            97 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        CLASSIFIED AS INCIDENT
        DEPARTURE POINT             INTENDED DESTINATION
          WEST MEMPHIS,AR             TOPEKA,KS
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: PROPELLER                       IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           POWERPLANT - PROPELLER AND ACCESSORIES: BLADES
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
        FACTOR(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  SUSPECTED OR KNOWN AIRCRAFT DAMAGE
                                  PROP/ENGINE VIBRATION
        REMARKS- FATIGUE FAILURE OF ONE PROP BLADE.1900 HR SINCE OVERHAUL.
```

## Aircraft

- Registration: [N4312Y](https://openairdocs.org/aircraft/N4312Y), registered now, S/N 23-2036 (OpenAirDocs)
- Reported make and model: PIPER PA-23
- Registry model: [Piper PA-23-160](https://openairdocs.org/model/piper-pa-23-160) (registry code 7102304) (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: Minor 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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