# NTSB CHI71FBD21: Aero Comdr 680W, N5049E, West Chicago, IL, September 11, 1970

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 11, 1970
- Place: West Chicago, IL · WEST CHICAGO, IL
- Location: 41.8953° N, 88.2205° W: Placed by OpenAirDocs: center of West Chicago, IL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.8953&lon=-88.2205&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report June 24, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 140043
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI71FBD21
- Page: https://openairdocs.org/ntsb/CHI71FBD21

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3716  70/9/11    WEST CHICAGO,ILL    AERO COMDR 680W     CR-  0  0  1  NONCOMMERCIAL             ATP,FLIGHT INSTR., AGE
        TIME - 0445                    N5049E              PX-  0  0  1  BUSINESS                  29, 3600 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            1100 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - DUPAGE COUNTY
        DEPARTURE POINT             INTENDED DESTINATION
          JANESVILLE,WISC             CHICAGO,ILL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: DESCENDING
           FIRE OR EXPLOSION: IN FLIGHT                             IN FLIGHT: DESCENDING
        PROBABLE CAUSE(S)
           POWERPLANT - TURBINE ASSEMBLY: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING ON AIRPORT/SEAPLANE BASE/HELIPT.
        REMARKS- HI SPEED PINION ASSEMBLY SUPPORT HOUSING FRAGMENTED.SHAFT AND GR DISENGAGED FROM 1ST REDUCTION GR.
```

## Aircraft

- Registration: N5049E (not matched to a registry record)
- Reported make and model: AERO COMDR 680W
- Category: Airplane
- Engines: turbo prop
- Damage: Substantial damage
- Airport: Dupage County

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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