# NTSB MKC72DCD15: Cessna 150, N561QL, Knoxville, IA, July 31, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 31, 1971
- 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: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report March 9, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 162399
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC72DCD15
- Page: https://openairdocs.org/ntsb/MKC72DCD15

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2644  71/7/31    KNOXVILLE,IOWA      CESSNA 150          CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 2005                    N561QL              PX-  0  0  0  DUAL                      AGE 46, 1755 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            160 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - KNOXVILLE
        DEPARTURE POINT             INTENDED DESTINATION
          DES MOINES,IOWA             LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: LEVEL OFF/TOUCHDOWN
           GEAR COLLAPSED                                           LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           DUAL STUDENT - IMPROPER LEVEL OFF
           PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
```

## Aircraft

- Registration: [N561QL](https://openairdocs.org/deregistered/N561QL-2022-11-16), registration cancelled 2022-11-16, S/N 15069155 (OpenAirDocs)
- Reported make and model: CESSNA 150
- Registry model: [Cessna 150H](https://openairdocs.org/model/cessna-150h) (registry code 2071818) (OpenAirDocs)
- Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Knoxville

## Other investigations on N561QL (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 ERA21LA307](https://openairdocs.org/ntsb/ERA21LA307), Jul 1, 2021: Cessna 150 (N561QL), Carrollton, AL, substantial damage. Probable cause: The pilot’s incorrect preflight planning and poor in-flight planning, resulting in fuel exhaustion. Contributing to the damage was the inadvertent encounter with a hole during the forced landing.

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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