# NTSB DEN93LA029: Cessna 172N, N4908G, Broomfield, CO, March 1, 1993

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: February 28, 1993, 17:00 local (Mar 1, 1993, 00:00 UTC)
- Place: Broomfield, CO
- Coordinates: 39.940654, -105.059722 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=39.9407&lon=-105.0597&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report October 25, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 18274
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN93LA029
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/18274/pdf
- Page: https://openairdocs.org/ntsb/DEN93LA029

## Probable cause

RUDDER CONTROL INTERFERENCE.

## 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 possible, pilot in command
  - control interference - inadvertent, pilot in command (cause)
- Nose over, landing - roll

## Analysis

THIS WAS THE STUDENT PILOT'S FIRST SUPERVISED SOLO FLIGHT.  THE FIRST TAKEOFF AND LANDING WAS SATISFACTORY.  ON THE SECOND APPROACH TO LANDING, THE PILOT NOTED A SLIGHT LEFT QUARTERING HEADWIND AND CORRECTED.  WHEN THE AIRPLANE TOUCHED DOWN, THE PILOT'S RIGHT HIGH TOP LACED BOOT BECAME JAMMED BETWEEN THE RUDDER PEDAL AND THE FLOOR CARPETING.  IN HIS ATTEMPT TO EXTRICATE HIS FOOT, THE PILOT LOST DIRECTIONAL CONTROL, THE AIRPLANE WENT OFF THE SIDE OF THE RUNWAY, AND NOSED OVER.

## Aircraft

- Registration: [N4908G](https://openairdocs.org/aircraft/N4908G), registered now, S/N 17273455 (OpenAirDocs)
- Reported make and model: CESSNA 172N
- Registry model: [Cessna 172N](https://openairdocs.org/model/cessna-172n) (registry code 2072434) (OpenAirDocs)
- Category: Airplane
- Serial number: 17273455
- Airframe hours: 3290
- Engines: LYCOMING O-320-H2AD 160 horsepower reciprocating
- Damage: Destroyed
- Flight: Instructional, Part 91
- Operator: Wings Of Denver Flying Club, doing business as Air West Flying Club
- Registered owner: Gladiator Aviation
- Airworthiness certificate: Standard, Utility; Standard, Normal
- Last inspection: 100 hour, February 11, 1993, 21 hours before
- Departed: BJC
- Destination: BJC
- Airport: BJC, Jefferson County, runway 11, 9,000 × 100 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 27; student; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 16 total, 6 in this make and model, 16 in the last 90 days, 10 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 40° at 8 knots
- Visibility: 15 statute miles
- Lowest ceiling: 25,000 ft broken
- Temperature: 46 °F, dew point 30 °F
- Altimeter: 29.00 inHg

## 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 19930228003899A](https://openairdocs.org/incident/19930228003899A), Feb 28, 1993: Cessna 172N, Denver, CO, Substantial damage. Student lost control on landing. Veered off runway and nosed over in a ditch. Reported his heavy boots the problem.

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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