Location: Goodyear, AZ
Accident Number: GAA17CA516
Date & Time: 09/02/2017, 0944 MST
Registration: N910XD
Aircraft: DIAMOND AIRCRAFT IND GMBH DA 40 NG
Aircraft Damage: Substantial
Defining Event: Abnormal runway contact
Injuries: 1 None
Flight Conducted Under: Part 91: General Aviation - Instructional
Analysis
The solo student pilot reported that, during approach, he felt a "slight sink." He added that the main landing gears touched down, and the airplane began to porpoise. The student pilot added power to initiate a go-around, but the airplane veered left. The porpoising continued, so the pilot reduced the power to idle and attempted to use brakes to steer. The airplane exited the runway to the left and impacted a taxiway sign.
The airplane sustained substantial damage to the right wing.
The student pilot 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 improper landing flare and subsequent failure to maintain directional control during the landing roll.
Findings
Aircraft
Landing flare - Not attained/maintained (Cause)
Directional control - Not attained/maintained (Cause)
Personnel issues
Aircraft control - Student pilot (Cause)
Environmental issues
Sign/marker - Contributed to outcome
Factual Information
History of Flight
Landing
Abnormal runway contact (Defining event)
Loss of control on ground
Attempted remediation/recovery
Collision with terr/obj (non-CFIT)
Student Pilot Information
Certificate: Student
Age: 23, Male
Airplane Rating(s): None
Seat Occupied: Left
Other Aircraft Rating(s): None
Restraint Used: 3-point
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: 04/11/2017
Occupational Pilot: No
Last Flight Review or Equivalent:
Flight Time: (Estimated) 16.4 hours (Total, all aircraft), 16.4 hours (Total, this make and model), 1.8 hours (Pilot In Command, all aircraft), 16.4 hours (Last 90 days, all aircraft), 13.6 hours (Last 30 days, all aircraft), 1.9 hours (Last 24 hours, all aircraft)
Aircraft and Owner/Operator Information
Aircraft Manufacturer: DIAMOND AIRCRAFT IND GMBH
Registration: N910XD
Model/Series: DA 40 NG NO SERIES
Aircraft Category: Airplane
Year of Manufacture: 2015
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 40.N303
Landing Gear Type: Tricycle
Seats: 4
Date/Type of Last Inspection: 08/23/2017, AAIP
Certified Max Gross Wt.: 2888 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time: 1133.9 Hours at time of accident
Engine Manufacturer: Austro
ELT: Installed, not activated
Engine Model/Series: E4-A
Registered Owner: CTC AVIATION LEASING (US) INC
Rated Power: 165 hp
Operator: L3 CTC AVIATION TRAINING
Operating Certificate(s) Held: None
Meteorological Information and Flight Plan
Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: KGYR, 968 ft msl
Observation Time: 1647 UTC
Distance from Accident Site: 1 Nautical Miles
Direction from Accident Site: 222°
Lowest Cloud Condition: Few / 12000 ft agl
Temperature/Dew Point: 32°C / 22°C
Lowest Ceiling: Broken / 20000 ft agl
Visibility: 10 Miles
Wind Speed/Gusts, Direction: Calm
Visibility (RVR):
Altimeter Setting: 29.96 inches Hg
Visibility (RVV):
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Goodyear, AZ (GYR)
Type of Flight Plan Filed: None
Destination: Goodyear, AZ (GYR)
Type of Clearance: VFR
Departure Time: 0916 MST
Type of Airspace: Class D
Airport Information
Airport: PHOENIX GOODYEAR (GYR)
Runway Surface Type: Asphalt
Airport Elevation: 968 ft
Runway Surface Condition: Dry
Runway Used: 21
IFR Approach: None
Runway Length/Width: 8500 ft / 150 ft
VFR Approach/Landing: Touch and Go; Traffic Pattern
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: 33.429722, -112.369444 (est)
Preventing Similar Accidents
Stay Centered: Preventing Loss of Control During Landing
Loss of control during landing is one of the leading causes of general aviation accidents and is often attributed to operational issues. Although most loss of control during landing accidents do not result in serious injuries, they typically require extensive airplane repairs and may involve potential damage to nearby objects such as fences, signs, and lighting.
Often, wind plays a role in these accidents. Landing in a crosswind presents challenges for pilots of all experience levels. Other wind conditions, such as gusting wind, tailwind, variable wind, or wind shifts, can also interfere with pilots’ abilities to land the airplane and maintain directional control.
What can pilots do?
Evaluate your mental and physical fitness before each flight using the Federal Aviation Administration’s (FAA) “I'M SAFE Checklist." Being emotionally and physically ready will help you stay alert and potentially avoid common and preventable loss of control during landing accidents.
Check wind conditions and forecasts often. Take time during every approach briefing to fully understand the wind conditions. Use simple rules of thumb to help (for example, if the wind direction is 30 degrees off the runway heading, the crosswind component will be half of the total wind velocity).
Know your limitations and those of the airplane you are flying. Stay current and practice landings on different runways and during various wind conditions. If possible, practice with a flight instructor on board who can provide useful feedback and techniques for maintaining and improving your landing procedures.
Prepare early to perform a go around if the approach is not stabilized and does not go as planned or if you do not feel comfortable with the landing. Once you are airborne and stable again, you can decide to attempt to land again, reassess your landing runway, or land at an alternate airport. Incorporate go-around procedures into your recurrent training.
During landing, stay aligned with the centerline. Any misalignment reduces the time available to react if an unexpected event such as a wind gust or a tire blowout occurs.
Do not allow the airplane to touch down in a drift or in a crab. For airplanes with tricycle landing gear, do not allow the nosewheel to touch down first.
Maintain positive control of the airplane throughout the landing and be alert for directional control difficulties immediately upon and after touchdown. A loss of directional control can lead to a nose-over or ground loop, which can cause the airplane to tip or lean enough for the wing tip to contact the ground.
Stay mentally focused throughout the landing roll and taxi. During landing, avoid distractions, such as conversations with passengers or setting radio frequencies.
Interested in More Information?
The FAA’s “Airplane Flying Handbook” (FAA-H-8083-3B), chapter 8, “Approaches and Landings,” provides guidance about how to conduct crosswind approaches and landings and discusses maximum safe crosswind velocities. The handbook can be accessed from the FAA’s website (www.faa.gov).
The FAA Safety Team (FAASTeam) provides access to online training courses, seminars, and webinars as part of the FAA’s “WINGS—Pilot Proficiency Program.” This program includes targeted flight training designed to help pilots develop the knowledge and skills needed to achieve flight proficiency and to assess and mitigate the risks associated with the most common causes of accidents, including loss of directional control. The courses listed below can be accessed from the FAASTeam website (www.faasafety.gov).
Avoiding Loss of Control
Maneuvering: Approach and Landing
Normal Approach and Landing
Takeoffs, Landings, and Aircraft Control
The Aircraft Owners and Pilots Association Air Safety Institute offers several interactive courses, presentations, publications, and other safety resources that can be accessed from its website (www.aopa.org/asf/).
The NTSB’s Aviation Information Resources web page, www.ntsb.gov/air, provides convenient access to NTSB aviation safety products.
The NTSB presents this information to prevent recurrence of similar accidents. Note that this should not be considered guidance from the regulator, nor does this supersede existing FAA Regulations (FARs).
Federal Aviation Administration / Flight Standards District Office; Scottsdale, Arizona
Aviation Accident Factual Report - National Transportation Safety Board: https://app.ntsb.gov/pdf
Investigation Docket - National Transportation Safety Board: https://dms.ntsb.gov/pubdms
CTC Aviation Leasing (US) Inc: http://registry.faa.gov/N910XD
NTSB Identification: GAA17CA516
14 CFR Part 91: General Aviation
Accident occurred Saturday, September 02, 2017 in Goodyear, AZ
Aircraft: DIAMOND AIRCRAFT IND GMBH DA 40 NG, registration: N910XD
Injuries: 1 Uninjured.
NTSB investigators used data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator and did not travel in support of this investigation to prepare this aircraft accident report.
The solo student pilot reported that, during approach, he felt a "slight sink". He added that the main landing gears touched down and the airplane began to porpoise. The student pilot added power to initiate a go-around, but the airplane veered left. The porpoising continued, so the pilot reduced power to idle and attempted to use brakes to steer. The airplane exited the runway to the left and impacted a taxiway sign.
The airplane sustained substantial damage to the right wing.
The student pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
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