# NTSB CHI68F0512: Beech D18S, N120R, Beloit, IL, December 22, 1967

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: December 22, 1967
- Place: Beloit, IL · BELOIT, IL
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report March 14, 1968
- Report: Brief approved by the director
- NTSB case key (mKey): 112564
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI68F0512
- Page: https://openairdocs.org/ntsb/CHI68F0512

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-1026  67/12/22   BELOIT,ILL          BEECH D18S          CR-  0  1  0  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 0230                    N120R               PX-  0  0  0  BUSINESS                  AGE 50, 8363 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            UNK/NR IN TYPE,
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - TRUE STRIP
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            LANDING: FINAL APPROACH
           COLLISION WITH GROUND/WATER: CONTROLLED                  LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: CYLINDER ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           PILOT IN COMMAND - SPONTANEOUS-IMPROPER ACTION
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER EMERGENCY PROCEDURES
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - VIBRATION,EXCESSIVE
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
                                  PROP/ENGINE VIBRATION
        REMARKS- NOS.1,8,9 CYL LEFT ENG FAILED. PLT MISTAKENLY CUT POWER ON RT ENG TO STOP VIBRATION.
```

## Aircraft

- Registration: [N120R](https://openairdocs.org/deregistered/N120R-1971-07-14), registration cancelled 1971-07-14, S/N A-78, built 1946 (OpenAirDocs)
- Reported make and model: BEECH D18S
- Registry model: [Beech D18S](https://openairdocs.org/model/beech-d18s) (registry code 1151004) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: True Strip

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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