# NTSB MKC81DCD03: Cessna 180, N9712B, Knoxville, IA, November 29, 1980

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: November 29, 1980
- Place: Knoxville, IA · KNOXVILLE, IA
- Location: 41.3185° N, 93.1026° W: Placed by OpenAirDocs: center of Knoxville, IA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.3185&lon=-93.1026&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report January 2, 1981
- Report: Brief approved by the director
- NTSB case key (mKey): 128407
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC81DCD03
- Page: https://openairdocs.org/ntsb/MKC81DCD03

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2929  80/11/29   KNOXVILLE,IA        CESSNA 180          CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 37, 507
        TIME - 1350                    N9712B              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 305 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - KNOXVILLE MUNI
        DEPARTURE POINT             INTENDED DESTINATION
          KNOXVILLE,IA                ST PAUL,MN
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 TAKEOFF: RUN
           NOSE OVER/DOWN                                           TAKEOFF: RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER COMPENSATION FOR WIND CONDITIONS
        FACTOR(S)
           WEATHER - UNFAVORABLE WIND CONDITIONS
        WEATHER BRIEFING - SELF-HELP,PILOT CHECKED WEATHER DATA
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        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                  RELATIVE BEARING OF WIND
          NONE                                                     LEFT QUARTERING HEAD WIND 293-337 DEGREES
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          270                                                       18
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
        REMARKS- WIND GUSTS TO 26KTS.
```

## Aircraft

- Registration: [N9712B](https://openairdocs.org/aircraft/N9712B), registered now, S/N 50010, built 1957 (OpenAirDocs)
- Reported make and model: CESSNA 180
- Registry model: [Cessna 180A](https://openairdocs.org/model/cessna-180a) (registry code 2072604) (OpenAirDocs)
- Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Knoxville Muni

## Other investigations on N9712B (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 ATL88LA157](https://openairdocs.org/ntsb/ATL88LA157), Apr 26, 1988: Cessna 180A (N9712B), Danville, KY, 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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