# NTSB GAA16CA420: Cubcrafters CC11, N76CC, Hailey, ID, August 8, 2016 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: August 7, 2016, 19:24 local (Aug 8, 2016, 01:24 UTC) - Place: Hailey, ID - Coordinates: 43.503055, -114.294723 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=43.5031&lon=-114.2947&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report September 12, 2016 - Report: Approved by Office Director - NTSB office: General Aviation Accidents - Parties: FAA - NTSB case key (mKey): 93789 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=GAA16CA420 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/93789/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=93789 - Page: https://openairdocs.org/ntsb/GAA16CA420 ## Probable cause The flight instructor's failure to maintain directional control during the landing roll in gusty crosswind conditions, which resulted in a ground loop. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Instructor/check pilot (probable cause); cases with it: [Cubcrafters CC11-160, 13 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=060006N), [All aircraft, 9,308 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Performance/control parameters: directional control](https://openairdocs.org/ntsb-findings/01062020): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Cubcrafters CC11-160, 14 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=060006N), [All aircraft, 3,969 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) - [Wind: crosswind](https://openairdocs.org/ntsb-findings/03034040): Environmental issues › Conditions/weather/phenomena · Ability to respond/compensate; cases with it: [Cubcrafters CC11-160, 4 cases](https://openairdocs.org/ntsb-findings/03034040/cases.md?model=060006N), [All aircraft, 1,014 cases](https://openairdocs.org/ntsb-findings/03034040/cases.md) - [Wind: gusts](https://openairdocs.org/ntsb-findings/03034045): Environmental issues › Conditions/weather/phenomena · Ability to respond/compensate; cases with it: [Cubcrafters CC11-160, 5 cases](https://openairdocs.org/ntsb-findings/03034045/cases.md?model=060006N), [All aircraft, 1,201 cases](https://openairdocs.org/ntsb-findings/03034045/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing-landing roll: Other weather encounter](https://openairdocs.org/ntsb-events/400); cases with it: [Cubcrafters CC11-160, 7 cases](https://openairdocs.org/ntsb-events/400/sequence.md?model=060006N), [All aircraft, 1,130 cases](https://openairdocs.org/ntsb-events/400/sequence.md) - [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Cubcrafters CC11-160, 11 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=060006N), [All aircraft, 4,590 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing-landing roll: Abnormal runway contact](https://openairdocs.org/ntsb-events/090); cases with it: [Cubcrafters CC11-160, 1 case](https://openairdocs.org/ntsb-events/090/sequence.md?model=060006N), [All aircraft, 1,514 cases](https://openairdocs.org/ntsb-events/090/sequence.md) ## Analysis The flight instructor of a tailwheel-equipped airplane reported that he was instructing the airplane's owner, who was also a private pilot, during a proficiency flight in gusty crosswind conditions. The flight instructor further reported that during the landing roll, the airplane began to weathervane left into the wind, and he took the flight controls from the private pilot. Subsequently, he reported that he "stopped a ground loop to the left, only to ground loop to the right." During the ground loop, the left wing impacted the runway and was substantially damaged. The flight instructor did not report any mechanical malfunctions or failures with the airplane that would have precluded normal operation. The automated weather observing system at the airport about 30 minutes before the accident recorded the wind at 210 degrees true at 8 knots, gusting to 13 knots. The flight instructor reported that the landing was on runway 31. ## Factual narrative The flight instructor of a tailwheel-equipped airplane reported that he was instructing the airplane's owner, who was also a private pilot, during a proficiency flight in gusty crosswind conditions. The flight instructor further reported that during the landing roll, the airplane began to weathervane left into the wind, and he took the flight controls from the private pilot. Subsequently, he reported that he "stopped a ground loop to the left, only to ground loop to the right." During the ground loop, the left wing impacted the runway and was substantially damaged. The flight instructor did not report any mechanical malfunctions or failures with the airplane that would have precluded normal operation. The automated weather observing system at the airport about 30 minutes before the accident recorded the wind at 210 degrees true at 8 knots, gusting to 13 knots. The flight instructor reported that the landing was on runway 31. ## Aircraft - Registration: [N76CC](https://openairdocs.org/aircraft/N76CC), registered now, S/N CC11-00216, built 2012 (OpenAirDocs) - Reported make and model: CUBCRAFTERS INC CC11 (160) - Registry model: [Cubcrafters CC11-160](https://openairdocs.org/model/cubcrafters-cc11-160) (registry code 060006N) (OpenAirDocs) - Registry engine: [Cubcrafter CC340](https://openairdocs.org/engine/cubcrafter-cc340) (registry code 18050, 4 cycle) (OpenAirDocs) - Category: Airplane - Serial number: CC11-00216 - Year built: 2012 - Airframe hours: 165 - Engines: CubCrafters CC340 180 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Airworthiness certificate: Special, Experimental (Special); Special, Special light-sport (Special) - Last inspection: Annual, July 1, 2016 - Departed: SUN, Hailey, ID - Destination: SUN, Hailey, ID - Airport: SUN, Friedman Memorial, runway 31, 7,550 × 100 ft, asphalt - Equipment: Stall warning system, Auto-pilot, Handheld GPS ## Flight crew As NTSB recorded them. NTSB leaves out names. - Flight instructor; age 62; injuries: none; commercial, flight instructor; airplane ratings: single-engine sea, single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, without waivers/limitations; last flight review May 21, 2016; seat: rear; restraint: 3-point; flight hours: 9,600 total, 170 in this make and model, 8,700 as pilot in command, 110 in the last 90 days, 30 in the last 30 days, 2 in the last 24 hours - Pilot; age 66; injuries: none; private; airplane ratings: single-engine land; instrument ratings: airplane; last flight review July 22, 2015; seat: front; restraint: 3-point; flight hours: 2,378 total, 260 in this make and model, 2,378 as pilot in command, 18 in the last 90 days, 8 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 210° at 8 knots, gusting 13 - Visibility: 10 statute miles - Temperature: 79 °F, dew point 36 °F - Altimeter: 29.94 inHg - Observed at: KSUN ## 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 20160807014199A](https://openairdocs.org/incident/20160807014199A), Aug 7, 2016: Cubcrafters Inc CC11-160, Hailey, ID, Substantial damage. Pic/instructor and second pilot were practicing cross wind landing , using runway 31 at sun. During landing roll out aircraft veered to the left. The… ## Docket (3 files) The files NTSB released with the investigation on September 1, 2016, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=93789. 2.8 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 1.9 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40444145&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF - Record of Conversation (Flight Instructor) (item 2, .PDF, 59 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40444146&FileExtension=.PDF&FileName=Record%20of%20Conversation%20(Flight%20Instructor)-Master.PDF - Accident Photo (item 3, .PDF, 856 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40444147&FileExtension=.PDF&FileName=Accident%20Photo-Master.PDF 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. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.