# NTSB CHI71FBD05: Piper PA-24, N8250P, Crystal Lake, IL, July 24, 1970

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 24, 1970
- Place: Crystal Lake, IL · CRYSTAL LAKE, IL
- Location: 42.2332° N, 88.3344° W: Placed by OpenAirDocs: center of Crystal Lake, IL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.2332&lon=-88.3344&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 5, 1970
- Report: Brief approved by the director
- NTSB case key (mKey): 112407
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI71FBD05
- Page: https://openairdocs.org/ntsb/CHI71FBD05

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1139  70/7/24    CRYSTAL LAKE,ILL    PIPER PA-24         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 46, 946
        TIME - 1715                    N8250P              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 461 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - CRYSTAL LAKE
        DEPARTURE POINT             INTENDED DESTINATION
          NORTHBROOK,ILL              SKY HARBOR ARPT
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           WHEELS-UP                                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           POWERPLANT - LUBRICATING SYSTEM: LINES,HOSES,FITTING
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER CLEARANCE-TOLERANCE
           MISCELLANEOUS ACTS,CONDITIONS - LEAK/LEAKAGE
           MISCELLANEOUS ACTS,CONDITIONS - OIL EXHAUSTION-ENGINE LUBRICATION SYSTEM
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           PILOT IN COMMAND - FAILED TO ASSURE THE GEAR WAS DOWN AND LOCKED
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- HOLE WORN THROUGH OIL LINE,P/N21592-00,BY CONTACT WITH ENG MOUNT.
```

## Aircraft

- Registration: [N8250P](https://openairdocs.org/aircraft/N8250P), registered now, S/N 24-2563 (OpenAirDocs)
- Reported make and model: PIPER PA-24
- Registry model: [Piper PA-24-250](https://openairdocs.org/model/piper-pa-24-250) (registry code 7102404) (OpenAirDocs)
- Registry engine: [Lycoming TI0-540 series](https://openairdocs.org/engine/lycoming-ti0-540-series) (registry code 41533, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Crystal Lake

## Other investigations on N8250P (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 NYC79DA069](https://openairdocs.org/ntsb/NYC79DA069), Jul 19, 1979: Piper PA-24 (N8250P), Pittsburgh, PA, incident, no 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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