# NTSB CHI74FEE03: Aeronca 11AC, N85917, Naperville, IL, July 18, 1973

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 18, 1973
- Place: Naperville, IL · NAPERVILLE, IL
- Location: 41.7859° N, 88.1473° W: Placed by OpenAirDocs: center of Naperville, IL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.7859&lon=-88.1473&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 16, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 189442
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI74FEE03
- Page: https://openairdocs.org/ntsb/CHI74FEE03

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2102  73/7/18    NAPERVILLE,ILL      AERONCA 11AC        CR-  0  0  1  NONCOMMERCIAL             STUDENT, AGE 35, 38 TOTAL
        TIME - 1635                    N85917              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  HOURS, 0 IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - CLOW
        DEPARTURE POINT             INTENDED DESTINATION
          NAPERVILLE,ILL.             ELGIN,ILL.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              IN FLIGHT: CLIMB TO CRUISE
           COLLISION WITH GROUND/WATER: UNCONTROLLED                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           AIRFRAME - FUSELAGE: SKIN AND ATTACHMENTS
           MISCELLANEOUS ACTS,CONDITIONS - DETERIORATED
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           MISCELLANEOUS - FOREIGN MATERIAL AFFECTING NORMAL OPERATIONS
           MISCELLANEOUS ACTS,CONDITIONS - INTERFERENCE WITH FLIGHT CONTROLS
        FACTOR(S)
           PILOT IN COMMAND - LACK OF FAMILIARITY WITH AIRCRAFT
        EMERGENCY CIRCUMSTANCES - FORCED LANDING ON AIRPORT/SEAPLANE BASE/HELIPT.
        REMARKS- 1ST FLT SINCE PURCHASE.FABRIC AT FWD EDGE OF FUSELAGE TORE LOOSE & TRAILED OVER EMPENNAGE.
```

## Aircraft

- Registration: [N85917](https://openairdocs.org/aircraft/N85917), registered now, S/N 11AC-328 (OpenAirDocs)
- Reported make and model: AERONCA 11AC
- Registry model: [Aeronca 11AC](https://openairdocs.org/model/aeronca-11ac) (registry code 0191102) (OpenAirDocs)
- Registry engine: [Continental A&C65 series](https://openairdocs.org/engine/continental-a-c65-series) (registry code 17003, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Clow

## 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 19730718025429A](https://openairdocs.org/incident/19730718025429A), Jul 18, 1973: Blanca 11AC, Naperville, IL, Substantial damage. 1St flt since purchase. Fabric at fwd edge of fuselage tore loose & trailed over empennage.

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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