# NTSB CHI69D0523: Cessna 172, N170AT, Lisle, IL, February 2, 1969

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: February 2, 1969
- Place: Lisle, IL · LISLE, IL
- Location: 41.7921° N, 88.0877° W: Placed by OpenAirDocs: center of Lisle, IL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.7921&lon=-88.0877&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report May 13, 1969
- Report: Brief approved by the director
- NTSB case key (mKey): 191740
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI69D0523
- Page: https://openairdocs.org/ntsb/CHI69D0523

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0395   69/2/2    LISLE,ILL           CESSNA 172          CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 1145                    N170AT              PX-  0  0  0  DUAL                      AGE 29, 2197 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            755 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER IN-FLIGHT DECISIONS OR PLANNING
           MISCELLANEOUS ACTS,CONDITIONS - ICE-PROPELLER
           MISCELLANEOUS ACTS,CONDITIONS - AIRFRAME ICE
           MISCELLANEOUS ACTS,CONDITIONS - OUT OF BALANCE
           WEATHER - ICING CONDITIONS-INCLUDES SLEET,FREEZING RAIN,ETC.
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
           TERRAIN - ROUGH/UNEVEN
        PARTIAL POWER LOSS - *ERROR-INVALID CODE*
        WEATHER BRIEFING - BRIEFED BY FLIGHT SERVICE PERSONNEL, BY PHONE
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
                                  PROP/ENGINE VIBRATION
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OVERCAST                                                  1400
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          3 MILES OR LESS                                          NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TYPE OF WEATHER CONDITIONS
          HAZE                                                     VFR
        TYPE OF FLIGHT PLAN
          IFR
        REMARKS- PLT CONTINUED FLT TOWARD INTENDED DESTINATION AFTER ENCOUNTERING ICING CONDITIONS.
```

## Aircraft

- Registration: [N170AT](https://openairdocs.org/aircraft/N170AT), registered now, S/N 17254850, built 1966 (OpenAirDocs)
- Reported make and model: CESSNA 172
- Registry model: [Cessna 172G](https://openairdocs.org/model/cessna-172g) (registry code 2072420) (OpenAirDocs)
- Registry engine: [Continental 0-300 series](https://openairdocs.org/engine/continental-0-300-series) (registry code 17022, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

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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