# NTSB WPR14CA095: Hallendorf Tom RV 6, N6888, Sacramento, CA, January 12, 2014 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: January 12, 2014, 14:30 local (22:30 UTC) - Place: Sacramento, CA - Coordinates: 38.646667, -121.296943 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=38.6467&lon=-121.2969&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 May 5, 2014 - Report: Approved by Office Director - NTSB office: Western Pacific Region - Parties: Federal Aviation Administration - NTSB case key (mKey): 88666 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR14CA095 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/88666/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=88666 - Page: https://openairdocs.org/ntsb/WPR14CA095 ## Probable cause The pilot's failure to maintain directional control during landing roll in gusty wind conditions. ## 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 · Pilot (probable cause); cases with it: [Hallendorf Tom RV-6, 1 case](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=05606BH), [All aircraft, 9,295 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: [Hallendorf Tom RV-6, 1 case](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=05606BH), [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) - [Wind: gusts](https://openairdocs.org/ntsb-findings/03034045): Environmental issues › Conditions/weather/phenomena · Effect on operation; cases with it: [Hallendorf Tom RV-6, 1 case](https://openairdocs.org/ntsb-findings/03034045/cases.md?model=05606BH), [All aircraft, 1,199 cases](https://openairdocs.org/ntsb-findings/03034045/cases.md) - [Object/animal/substance: sign/marker](https://openairdocs.org/ntsb-findings/03022015): Environmental issues › Physical environment · Contributed to outcome; cases with it: [Hallendorf Tom RV-6, 1 case](https://openairdocs.org/ntsb-findings/03022015/cases.md?model=05606BH), [All aircraft, 214 cases](https://openairdocs.org/ntsb-findings/03022015/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: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Hallendorf Tom RV-6, 1 case](https://openairdocs.org/ntsb-events/230/sequence.md?model=05606BH), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing-landing roll: Runway excursion](https://openairdocs.org/ntsb-events/300); cases with it: [Hallendorf Tom RV-6, 1 case](https://openairdocs.org/ntsb-events/300/sequence.md?model=05606BH), [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md) - [Landing-landing roll: Landing gear collapse](https://openairdocs.org/ntsb-events/094); cases with it: [Hallendorf Tom RV-6, 1 case](https://openairdocs.org/ntsb-events/094/sequence.md?model=05606BH), [All aircraft, 1,787 cases](https://openairdocs.org/ntsb-events/094/sequence.md) - [Landing-landing roll: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Hallendorf Tom RV-6, 1 case](https://openairdocs.org/ntsb-events/470/sequence.md?model=05606BH), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis The pilot reported that while practicing landings in a tailwheel-equipped airplane, during landing roll in gusting wind conditions, the airplane started to veer to the left. Despite the pilot's control inputs, he was unable to maintain directional control. Subsequently, the airplane began to bounce several times and the main gear collapsed. As the airplane skidded to a stop, the right wing struck a sign which resulted in substantial damage to the airplane. The pilot reported no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Factual narrative The pilot reported that while practicing landings in a tailwheel-equipped airplane, during landing roll in gusting wind conditions, the airplane started to veer to the left. Despite the pilot's control inputs, he was unable to maintain directional control. Subsequently, the airplane began to bounce several times and the main gear collapsed. As the airplane skidded to a stop, the right wing struck a sign which resulted in substantial damage to the airplane. The pilot reported no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N6888](https://openairdocs.org/aircraft/N6888), registered now, S/N 25767-1, built 2002 (OpenAirDocs) - Reported make and model: HALLENDORF TOM RV 6 (UNDESIGNAT) - Registry model: [Hallendorf Tom RV-6](https://openairdocs.org/model/hallendorf-tom-rv-6) (registry code 05606BH) (OpenAirDocs) - Registry engine: [Lycoming I0360 SER A&C](https://openairdocs.org/engine/lycoming-i0360-ser-a-c) (registry code 41511, reciprocating) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: 25767-1 - Year built: 2002 - Airframe hours: 600 - Engines: LYCOMING IO360 SER A&C reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Priest Allen E - Registered owner: Priest Allen E - Airworthiness certificate: Special, Experimental (Special); Standard, Aerobatic - Last inspection: Continuous airworthiness, July 1, 2013 - Departed: EDU, Davis, CA - Destination: EDU, Davis, CA - Airport: MHR, Sacramento Mather, runway 04R, 11,301 × 150 ft, concrete ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 73; injuries: none; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, without waivers/limitations; seat: left; restraint: 3-point; flight hours: 1,200 total, 100 in this make and model, 1,000 as pilot in command, 30 in the last 90 days, 10 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 320° at 16 knots, gusting 22 - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 61 °F, dew point 34 °F - Altimeter: 30.30 inHg - Observed at: SAC, 96 nm away ## 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 20140112000309A](https://openairdocs.org/incident/20140112000309A), Jan 12, 2014: Hallendorf Tom RV-6, Mather, CA, Substantial damage. On January 12, 2014, around 14:29 PST, N6888, an RV6 tail-wheeled airplane, ground looped during touch-and-go on runway 04R at Sacramento Mather Airport (mhr),… ## Docket (1 files) The files NTSB released with the investigation on April 22, 2014, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=88666. 362 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 362 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40411393&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.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.