# NTSB CHI66D0575: Dehavilland 104-6A, N4041B, Chicago, IL, January 17, 1966

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: January 17, 1966
- 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: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report May 31, 1966
- Report: Brief approved by the director
- NTSB case key (mKey): 173285
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI66D0575
- Page: https://openairdocs.org/ntsb/CHI66D0575

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0759  66/1/17    CHICAGO ILL         DEHAVILLAND 104-6A  CR-  0  0  2  COMMERCIAL                COMMERCIAL, AGE 31, 3000
        TIME - 1344                    N4041B              PX-  0  0  0  AIR TAXI-PASSG            TOTAL HOURS, 2600 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, INSTRUMENT RATED.
        NAME OF AIRPORT - OHARE INT.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR COLLAPSED                                           TAXI: TO TAKEOFF
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: NORMAL RETRACTION/EXTENSION ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        REMARKS- LEFT GEAR ACTUATING CYLINDER PISTON FAILED.
```

## Aircraft

- Registration: [N4041B](https://openairdocs.org/deregistered/N4041B-1981-01-31), registration cancelled 1981-01-31, S/N 04385 (OpenAirDocs)
- Reported make and model: DEHAVILLAND 104-6A
- Registry model: [Dehavilland DH104 DOVE 6A](https://openairdocs.org/model/dehavilland-dh104-dove-6a) (registry code 2800410) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Ohare Int.

## Other investigations on N4041B (1)

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.

- [NTSB SEA73FYG31](https://openairdocs.org/ntsb/SEA73FYG31), May 15, 1973: Dehavilland DH104 (N4041B), Moses Lake, WA, destroyed

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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