# NTSB CEN12CA159: Maule MX-7-235, N5664N, Tea, SD, February 8, 2012 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: February 8, 2012, 13:00 local (19:00 UTC) - Place: Tea, SD - Coordinates: 43.455176, -96.802407 - Nearby events: https://openairdocs.org/map.md?lat=43.4552&lon=-96.8024&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: 1 uninjured - Status: Completed, report May 3, 2012 - Report: Approved by Office Director - NTSB office: Central Region - Parties: FAA Rapid City FSDO - NTSB case key (mKey): 82913 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN12CA159 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/82913/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=82913 - Page: https://openairdocs.org/ntsb/CEN12CA159 ## Probable cause The pilot did not maintain directional control of the airplane during a crosswind landing. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Performance/control parameters: directional control](https://openairdocs.org/ntsb-findings/01062020): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Maule MX-7-235, 3 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=5470207), [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) - [Action: incorrect action performance](https://openairdocs.org/ntsb-findings/02041015): Personnel issues › Action/decision · Pilot (probable cause); cases with it: [Maule MX-7-235, 3 cases](https://openairdocs.org/ntsb-findings/02041015/cases.md?model=5470207), [All aircraft, 1,386 cases](https://openairdocs.org/ntsb-findings/02041015/cases.md) - [Wind: crosswind](https://openairdocs.org/ntsb-findings/03034040): Environmental issues › Conditions/weather/phenomena · Contributed to outcome (probable cause); cases with it: [Maule MX-7-235, 2 cases](https://openairdocs.org/ntsb-findings/03034040/cases.md?model=5470207), [All aircraft, 1,008 cases](https://openairdocs.org/ntsb-findings/03034040/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: [Maule MX-7-235, 5 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=5470207), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing-landing roll: Nose over/nose down](https://openairdocs.org/ntsb-events/096); cases with it: [Maule MX-7-235, 3 cases](https://openairdocs.org/ntsb-events/096/sequence.md?model=5470207), [All aircraft, 2,287 cases](https://openairdocs.org/ntsb-events/096/sequence.md) ## Analysis The pilot reported that he landed the tailwheel-equipped airplane on runway 34 and that the wind was from about 270 degrees at 5 knots. During the landing roll, the airplane was traveling about 15 mph when the left wing suddenly lifted up about 60 degrees, and the right wing struck the runway. The airplane tipped up on its nose, and the propeller struck the ground. Postaccident inspection of the airplane revealed substantial damage to the right wing. The pilot reported that there was no mechanical malfunction or failure of the airplane. ## Factual narrative The pilot reported that he landed the tailwheel equipped airplane on runway 34 and that the wind was about 270 degrees at 5 knots. During landing roll out the airplane was traveling about 15 mph when the left wing suddenly lifted up about 60 degrees and the right wing struck the runway. The airplane tipped up on its nose and it had a propeller strike. The postaccident inspection of the airplane revealed substantial damage to the right wing. The pilot reported that there was no mechanical malfunction or failure of the airplane. ## Aircraft - Registration: [N5664N](https://openairdocs.org/aircraft/N5664N), registered now, S/N 10027C (OpenAirDocs) - Reported make and model: MAULE MX-7-235 - Registry model: [Maule MX-7-235](https://openairdocs.org/model/maule-mx-7-235) (registry code 5470207) (OpenAirDocs) - Category: Airplane - Serial number: 10027C - Engines: Lycoming IO-540-W1A5D 235 hp reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Alvine Frank G - Registered owner: Alvine Frank G - Airworthiness certificate: Standard, Normal - Departed: /sd0, Winfred, SD - Destination: Y14, Tea, SD - Airport: Y14, Lincoln County Airport, runway 34, 3,560 × 60 ft, concrete ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 74; private; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 3, with waivers/limitations; flight hours: 2,479 total, 685 in this make and model ## Weather - Conditions: Visual (VMC), Day - Wind: 230° at 6 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 27 °F, dew point 9 °F - Altimeter: 30.37 inHg - Observed at: FSD, 12 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 20120208002259A](https://openairdocs.org/incident/20120208002259A), Feb 8, 2012: Maule MX-7-235, Tea, SD, Substantial damage. On February 8, 2012, at approximately 1230, an MX-7-235 was coming into land at Tea, SD on runway 34. The weather was VFR and the wind was light and variable.… ## Docket (1 files) The files NTSB released with the investigation on March 27, 2012, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=82913. 526 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 526 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40364525&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.