# NTSB CHI91LA092: Cessna 152, N4450C, Lawrence, KS, February 9, 1991

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: February 9, 1991, 09:30 local (15:30 UTC)
- Place: Lawrence, KS
- Coordinates: 39.019878, -95.209609 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=39.0199&lon=-95.2096&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report December 4, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 15007
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI91LA092
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/15007/pdf
- Page: https://openairdocs.org/ntsb/CHI91LA092

## Probable cause

FAILURE OF THE STUDENT PILOT TO MAINTAIN DIRECTIONAL CONTROL OF THE AIRCRAFT, WHICH RESULTED IN A GROUND SWERVE.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of control - on ground/water, landing - roll
  - directional control - not maintained, pilot in command (cause)
  - ground loop/swerve - inadvertent, pilot in command (cause)
- On ground/water encounter with terrain/water, landing - roll

## Analysis

THE STUDENT PILOT SAID THAT ON HIS SECOND SOLO FLIGHT, HE BECAME CONFUSED AS TO THE FUNCTION OF THE RUDDER PEDALS AND BRAKES.  HE LOST DIRECTIONAL CONTROL ON THE LANDING ROLL-OUT, AND THE AIRCRAFT SWERVED OFF THE RUNWAY AND WAS SUBSTANTIALLY DAMAGED.

## Aircraft

- Registration: [N4450C](https://openairdocs.org/deregistered/N4450C-2017-06-22), registration cancelled 2017-06-22, S/N 15285715 (OpenAirDocs)
- Reported make and model: CESSNA 152
- Registry model: [Cessna 152](https://openairdocs.org/model/cessna-152) (registry code 2071835) (OpenAirDocs)
- Category: Airplane
- Serial number: 15285715
- Engines: LYCOMING O-235-L2C 110 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Operator: Lawrence Air Services, doing business as 2500 Airport Rd
- Airport: LWC, Lawrence, runway 19, 3,900 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; student; medical: class 3, valid medical--no waivers/lim.; flight hours: 20 total

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: -0 °F, dew point -0 °F

## 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 19910209009289A](https://openairdocs.org/incident/19910209009289A), Feb 9, 1991: Cessna 152, Lawrence, KS, Substantial damage. Second solo became confused as to funcion of rudder and brakes on landing rollout. Veered off runway.

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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