# NTSB CHI72AC042: Beech 99, N1031S, Cleveland, OH, November 3, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: November 3, 1971
- Place: Cleveland, OH · CLEVELAND, OH
- Location: 41.4995° N, 81.6954° W: Placed by OpenAirDocs: center of Cleveland, OH, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.4995&lon=-81.6954&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report April 20, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 163953
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI72AC042
- Page: https://openairdocs.org/ntsb/CHI72AC042

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3405   71/11/3   CLEVELAND,OHIO      BEECH 99            CR-  0  0  2  COMMERCIAL                AIRLINE TRANSPORT, AGE
        TIME - 2308                    N1031S              PX-  0  0  0  COMMUTER AIR CARRIER      35, 8145 TOTAL HOURS, 525
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0  AIR TAXI-CARGO S-D        IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - HOPKINS
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          AKRON,OHIO                  CHICAGO,ILL                  CLEVELAND,OHIO
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           MISCELLANEOUS                                            TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           PERSONNEL - OPERATIONAL SUPERVISORY PERSONNEL: FAILURE TO PROVIDE ADEQ.DIRECTIVES,MANUAL,EQUIPMENT
           AIRFRAME - FUSELAGE: DOORS,DOOR FRAMES
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY SECURED
           SYSTEMS - OTHER SYSTEMS: OTHER
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  DOOR/PANEL OPEN
        REMARKS- NOSE CARGO DOOR CAME OPEN.60 LB MAIL BAG FELL INTO R PROP.DOOR WARNING SYS INOP.NO CARGO RESTRAINT
```

## Aircraft

- Registration: [N1031S](https://openairdocs.org/deregistered/N1031S-1989-02-11), registration cancelled 1989-02-11, S/N U51 (OpenAirDocs)
- Reported make and model: BEECH 99
- Registry model: [Beech 99](https://openairdocs.org/model/beech-99) (registry code 1154002) (OpenAirDocs)
- Category: Airplane
- Engines: turbo prop
- Damage: Substantial damage
- Airport: Hopkins

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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