Wednesday, April 4, 2018

Cub Crafters CC18-180, N540DM: Accident occurred March 31, 2018 at Ernest A. Love Field (KPRC), Prescott, Yavapai County, Arizona

Additional Participating Entity: 
Federal Aviation Administration / Flight Standards District Office; Scottsdale, Arizona


Aviation Accident Final Report - National Transportation Safety Board: https://app.ntsb.gov/pdf

Investigation Docket - National Transportation Safety Board: https://dms.ntsb.gov/pubdms

http://registry.faa.gov/N540DM

Analysis 

The flight instructor reported that, during a training flight, upon landing, the tailwheel-equipped airplane bounced slightly. Subsequently, when the airplane touched back down, it veered to the left. He added that the student did not react immediately, so he added power and right rudder to correct. The airplane exited the left side of the runway, the instructor added full right brake to avoid a visual approach slope indicator (VASI) light, and the airplane ground looped to the right.

The flight instructor added that the student had apparently touched down after the first bounce with the left brake engaged.

The airplane sustained substantial damage to the left wing and aileron.

The flight instructor reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. 

Probable Cause and Findings

The National Transportation Safety Board determines the probable cause(s) of this accident to be:
The student pilot's failure to maintain directional control during landing after touching down with the left brake engaged. Contributing to the accident was the flight instructor's delayed remedial action.

Findings

Aircraft
Directional control - Not attained/maintained (Cause)
Brake - Incorrect use/operation

Personnel issues
Aircraft control - Student pilot (Cause)
Delayed action - Instructor/check pilot (Factor)
Lack of action - Student pilot

Factual Information

History of Flight

Landing-flare/touchdown
Attempted remediation/recovery

Landing-landing roll
Loss of control on ground (Defining event)
Runway excursion
Dragged wing/rotor/float/other

Location: Prescott, AZ
Accident Number: GAA18CA192
Date & Time: 03/31/2018, 1127 MST
Registration: N540DM
Aircraft: CUB CRAFTERS CC18-180
Aircraft Damage: Substantial
Defining Event: Loss of control on ground
Injuries: 2 None
Flight Conducted Under: Part 91: General Aviation - Instructional 

The flight instructor reported that, during a training flight, upon landing, the tailwheel-equipped airplane bounced slightly. Subsequently, when the airplane touched back down it veered to the left. He added that, the student did not react immediately, so he added power and right rudder to correct. The airplane exited the left side of the runway, he added full right brake to avoid a visual approach slope indicator (VASI) light, and the airplane ground looped to the right.

The flight instructor added that the student had apparently touched down after the first bounce with the left brake engaged.

The airplane sustained substantial damage to the left wing and aileron.

The flight instructor reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. 

Flight Instructor Information

Certificate: Airline Transport; Flight Instructor; Commercial
Age: 67, Male
Airplane Rating(s): Multi-engine Land; Single-engine Land; Single-engine Sea
Seat Occupied: Rear
Other Aircraft Rating(s): Glider
Restraint Used: 4-point
Instrument Rating(s): Airplane
Second Pilot Present: Yes
Instructor Rating(s): Airplane Multi-engine; Airplane Single-engine; Instrument Airplane
Toxicology Performed: No
Medical Certification: Class 2 With Waivers/Limitations
Last FAA Medical Exam: 07/10/2017
Occupational Pilot: Yes
Last Flight Review or Equivalent: 06/03/2016
Flight Time: (Estimated) 23870 hours (Total, all aircraft), 55 hours (Total, this make and model), 18906 hours (Pilot In Command, all aircraft), 60 hours (Last 90 days, all aircraft), 48 hours (Last 30 days, all aircraft), 4 hours (Last 24 hours, all aircraft)

Student Pilot Information

Certificate: Student
Age: 22, Female
Airplane Rating(s): None
Seat Occupied: Front
Other Aircraft Rating(s): None
Restraint Used: 4-point
Instrument Rating(s): None
Second Pilot Present: Yes
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: Class 3 Without Waivers/Limitations
Last FAA Medical Exam: 05/11/2017
Occupational Pilot: No
Last Flight Review or Equivalent:
Flight Time: (Estimated) 66.4 hours (Total, all aircraft), 31.6 hours (Total, this make and model), 31.6 hours (Last 90 days, all aircraft), 18.1 hours (Last 30 days, all aircraft), 1.1 hours (Last 24 hours, all aircraft) 

Aircraft and Owner/Operator Information

Aircraft Manufacturer: CUB CRAFTERS
Registration: N540DM
Model/Series: CC18-180
Aircraft Category: Airplane
Year of Manufacture: 2008
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: CC18-0027
Landing Gear Type: Tailwheel
Seats: 2
Date/Type of Last Inspection: 08/14/2008, Annual
Certified Max Gross Wt.: 2300 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time: 328 Hours as of last inspection
Engine Manufacturer: Lycoming
ELT: C126 installed, not activated
Engine Model/Series: O-360-C1G
Registered Owner: L-Bird LLC
Rated Power: 180 hp
Operator: On file
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: KPRC, 5052 ft msl
Observation Time: 1853 UTC
Distance from Accident Site: 0 Nautical Miles
Direction from Accident Site: 69°
Lowest Cloud Condition: Clear
Temperature/Dew Point: 22°C / -9°C
Lowest Ceiling: None
Visibility:  10 Miles
Wind Speed/Gusts, Direction: Light and Variable, Variable
Visibility (RVR):
Altimeter Setting: 30.17 inches Hg
Visibility (RVV):
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Prescott, AZ (PRC)
Type of Flight Plan Filed: None
Destination: Prescott, AZ (PRC)
Type of Clearance: None
Departure Time: 1030 MST
Type of Airspace: Class D 

Airport Information

Airport: ERNEST A LOVE FIELD (PRC)
Runway Surface Type: Asphalt
Airport Elevation: 5045 ft
Runway Surface Condition: Dry
Runway Used: 21R
IFR Approach: None
Runway Length/Width: 4846 ft / 60 ft
VFR Approach/Landing: Full Stop; Traffic Pattern 

Wreckage and Impact Information

Crew Injuries: 2 None
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 2 None
Latitude, Longitude:  34.650000, -112.427500 (est)

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