# NTSB CHI67F0510: Beech E18S, N21U, Chicago, IL, March 14, 1967

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 14, 1967
- Place: Chicago, IL · CHICAGO, IL
- Location: 41.8500° N, 87.6501° W: Placed by OpenAirDocs: center of Chicago, IL, within about 9 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.8500&lon=-87.6501&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report August 21, 1967
- Report: Brief approved by the director
- NTSB case key (mKey): 118135
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI67F0510
- Page: https://openairdocs.org/ntsb/CHI67F0510

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0801  67/3/14    CHICAGO,ILL         BEECH E18S          CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 1657                    N21U                PX-  0  0  3  CORP/EXEC                 AGE 50, 18900 TOTAL
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            HOURS, 6000 IN TYPE,
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - OHARE
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           WHEELS-UP                                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: TAILWHEEL ASSEMBLIES
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER ALIGNMENT/ADJUSTMENT
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  SUSPECTED MECHANICAL DISCREPANCY
        REMARKS- TAIL WHEEL RETRACT CHAIN AND CABLE LOOSE,PREVENTED NORMAL EMER EXTENSION OF MAIN GEAR.
```

## Aircraft

- Registration: [N21U](https://openairdocs.org/deregistered/N21U-2013-07-11), registration cancelled 2013-07-11, S/N BA-709, built 1964 (OpenAirDocs)
- Reported make and model: BEECH E18S
- Registry model: [Beech H-18](https://openairdocs.org/model/beech-h-18) (registry code 1151012) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Ohare

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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