# NTSB CHI78FEE42: Stearman B75N1, N64993, Oak Brook, IL, June 4, 1978

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: June 4, 1978
- Place: Oak Brook, IL · OAK BROOK, IL
- Location: 41.8364° N, 87.9532° W: Placed by OpenAirDocs: center of Oak Brook, IL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.8364&lon=-87.9532&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 1 uninjured
- Status: Completed, report May 23, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 140483
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI78FEE42
- Page: https://openairdocs.org/ntsb/CHI78FEE42

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4280   78/6/4    OAK BROOK,IL        STEARMAN B75N1      CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 53, 1080
        TIME - 0640                    N64993              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 227 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - OAK BROOK RLA
        DEPARTURE POINT             INTENDED DESTINATION
          OAK BROOK,IL                DEKALB,IL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           COLLIDED WITH: OBJECT                                    LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS
           MISCELLANEOUS ACTS,CONDITIONS - ANTI-ICING/DEICING EQUIPMENT-IMPROPER OPERATION OF/OR FAILED TO USE
           MISCELLANEOUS ACTS,CONDITIONS - ICE-CARBURETOR
        FACTOR(S)
           WEATHER - CONDITIONS CONDUCIVE TO CARB./INDUCTION SYSTEM ICING
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        WEATHER BRIEFING - UNKNOWN/NOT REPORTED
        EMERGENCY CIRCUMSTANCES - FORCED LANDING ON AIRPORT/SEAPLANE BASE/HELIPT.
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          NONE                                                      52
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
           20                                                       2
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
        REMARKS- STRUCK INCLINE AT FDGE OF RWY.
```

## Aircraft

- Registration: N64993 (not matched to a registry record)
- Reported make and model: STEARMAN B75N1
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Oak Brook Rla

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19780604017759A](https://openairdocs.org/incident/19780604017759A), Jun 4, 1978: Boeing N2S3, Oak Brook, IL, Substantial damage. Struck incline at fdge of rwy.

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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