Saturday, March 13, 2021

Loss of Control on Ground: Cessna 172S Skyhawk SP, N1132W; accident occurred March 18, 2020 at Rocky Mountain Metropolitan Airport (KBJC), Broomfield, Colorado

Aviation Accident Final Report - National Transportation Safety Board

Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Denver, Colorado

Investigation Docket - National Transportation Safety Board:

C Flying K Aviation LLC

Location: Denver, CO
Accident Number: CEN20CA128
Date & Time: 03/18/2020, 1200 MDT
Registration: N1132W
Aircraft:Cessna 172 
Aircraft Damage: Substantial
Defining Event: Loss of control on ground
Injuries:1 None 
Flight Conducted Under: Part 91: General Aviation - Personal


According to the pilot, she was preparing to take off for a second touch-and-go landing and retracted the flaps and added engine power. The airplane veered left, and the pilot retarded the throttle and applied right rudder. The pilot affirmed that she "didn't supply adequate rudder," and the airplane exited the left side of the runway and impacted a runway sign. The airplane sustained substantial damage to the lower left fuselage longeron.

Probable Cause and Findings

The National Transportation Safety Board determines the probable cause(s) of this accident to be:
The pilot's incorrect right rudder application during a touch-and go-landing, which resulted in a loss of directional control, runway excursion, and a collision with a runway sign.


Personnel issues Use of equip/system - Pilot
Personnel issues Aircraft control - Pilot
Aircraft Rudder control system - Incorrect use/operation
Aircraft Directional control - Not attained/maintained
Environmental issues Sign/marker - Effect on operation

Factual Information

History of Flight

Takeoff Loss of control on ground (Defining event)
Takeoff Attempted remediation/recovery
Takeoff Runway excursion
Takeoff Collision with terr/obj (non-CFIT)

Pilot Information

Certificate: Private
Age: 21, Female
Airplane Rating(s): Single-engine Land
Seat Occupied: Left
Other Aircraft Rating(s): None
Restraint Used:
Instrument Rating(s): None
Second Pilot Present: No
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: Class 3 Without Waivers/Limitations
Last FAA Medical Exam: 09/24/2018
Occupational Pilot: No
Last Flight Review or Equivalent: 12/20/2019
Flight Time:  (Estimated) 106 hours (Total, all aircraft), 104.4 hours (Total, this make and model), 20 hours (Pilot In Command, all aircraft), 16.3 hours (Last 90 days, all aircraft), 1.7 hours (Last 30 days, all aircraft) 

Aircraft and Owner/Operator Information

Aircraft Make: Cessna
Registration: N1132W
Model/Series:172 S 
Aircraft Category: Airplane
Year of Manufacture: 2006
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 172S10125
Landing Gear Type: Tricycle
Seats: 4
Date/Type of Last Inspection: 03/17/2020, Annual
Certified Max Gross Wt.: 2558 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time: 5919.2 Hours at time of accident
Engine Manufacturer: Lycoming
ELT: C91A installed, not activated
Engine Model/Series: IO-360-L2A
Registered Owner: C Flying K Aviation Llc
Rated Power: 180 hp
Operator: C Flying K Aviation Llc
Operating Certificate(s) Held: Pilot School (141)

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: KBJC, 5595 ft msl
Distance from Accident Site: 1 Nautical Miles
Observation Time: 1805 UTC
Direction from Accident Site: 179°
Lowest Cloud Condition: Few / 7000 ft agl
Visibility:  20 Miles
Lowest Ceiling:
Visibility (RVR):
Wind Speed/Gusts: 6 knots /
Turbulence Type Forecast/Actual:
Wind Direction: 110°
Turbulence Severity Forecast/Actual:
Altimeter Setting: 29.82 inches Hg
Temperature/Dew Point: 16°C / -9°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Denver, CO (BJC)
Type of Flight Plan Filed: None
Destination: Denver, CO (BJC)
Type of Clearance: VFR
Departure Time: 1154 MDT
Type of Airspace: Class D

Airport Information

Airport: Rocky Mountain Metropolitan (BJC)
Runway Surface Type: Asphalt
Airport Elevation: 5673 ft
Runway Surface Condition: Dry
Runway Used: 12R
IFR Approach: None
Runway Length/Width: 7002 ft / 75 ft
VFR Approach/Landing: Touch and Go

Wreckage and Impact Information

Crew Injuries: 1 None
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 1 None
Latitude, Longitude: 39.908889, -105.117222 (est)


  1. She has 106 hours, only 20 of which as PIC, as a "new" private pilot and can't hold centerline in a 172. God I hope she doesn't progress further.

    1. I wouldn't be too quick to "blame the victim". I've seen too many flights schools and CFIs stringing unsuspecting students along for their money and building flight time at their expense. Some of the students can be slow learners and it will take a bit longer for things to click. Nothing wrong with that. Lots of low time pilots have sleepy feet, especially as they go through the motions of a touch and go. That plane should've had pre-select flaps, but looking at the selector/indicator can still distract you and make you lose sight of the runway just enough for that drift to happen.
      One more reason to like the Johnson bar flaps.