# NTSB CHI71AC021: Beech 95, N2789Y, Chicago, IL, September 17, 1970

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 17, 1970
- 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 May 12, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 179773
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI71AC021
- Page: https://openairdocs.org/ntsb/CHI71AC021

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2950  70/9/17    CHICAGO,ILL         BEECH 95            CR-  0  0  2  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1247                    N2789Y              PX-  0  0  2  AIR TAXI-PASSG            AGE 27, 2340 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            22 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - MEIGS
        DEPARTURE POINT             INTENDED DESTINATION
          MINNEAPOLIS,MINN            CHICAGO,ILL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR RETRACTED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADVERTENTLY RETRACTED GEAR
        FACTOR(S)
           AIRFRAME - LANDING GEAR: MAIN GEAR-SHOCK ABSORBING ASSY,STRUTS,ATTACHMENTS,ETC.
           AIRFRAME - LANDING GEAR: SWITCHES,LEVERS,CRANKING MECHANISM,ETC.
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER CLEARANCE-TOLERANCE
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
        REMARKS- SHOCK STRUT PISTONS OVER INFLATED. CAUSED INOP OF GR SAFETY SWITCH.
```

## Aircraft

- Registration: [N2789Y](https://openairdocs.org/deregistered/N2789Y-2018-01-17), registration cancelled 2018-01-17, S/N TD-160, built 1958 (OpenAirDocs)
- Reported make and model: BEECH 95
- Registry model: [Beech 95](https://openairdocs.org/model/beech-95) (registry code 1153402) (OpenAirDocs)
- Registry engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Meigs

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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