# NTSB CEN11CA059: Hawker MK-20 Sea Fury, Breakenridge, TX, October 20, 2010 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: October 20, 2010, 15:30 local (20:30 UTC) - Place: Breakenridge, TX - Coordinates: 31.054086, -97.563705 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=31.0541&lon=-97.5637&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 March 16, 2011 - Report: Approved by Office Director - NTSB office: Central Region - Parties: FAA - NTSB case key (mKey): 77748 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN11CA059 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/77748/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=77748 - Page: https://openairdocs.org/ntsb/CEN11CA059 ## Probable cause The improperly adjusted brakes and the pilot's failure to lock the tailwheel, resulting in a loss of directional control. Contributing to the accident was the pilot's decision to continue flying the airplane with a known brake deficiency. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Maintenance: scheduled/routine maintenance](https://openairdocs.org/ntsb-findings/02062010): Personnel issues › Task performance · Maintenance personnel (probable cause); cases with it: [All aircraft, 320 cases](https://openairdocs.org/ntsb-findings/02062010/cases.md) - [Info processing/decision: decision making/judgment](https://openairdocs.org/ntsb-findings/02041520): Personnel issues › Action/decision · Pilot (probable cause); cases with it: [All aircraft, 3,098 cases](https://openairdocs.org/ntsb-findings/02041520/cases.md) - [Action: forgotten action/omission](https://openairdocs.org/ntsb-findings/02041035): Personnel issues › Action/decision · Pilot (probable cause); cases with it: [All aircraft, 440 cases](https://openairdocs.org/ntsb-findings/02041035/cases.md) - [Performance/control parameters: directional control](https://openairdocs.org/ntsb-findings/01062020): Aircraft › Aircraft oper/perf/capability · Attain/maintain not possible; cases with it: [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Prior to flight: Aircraft maintenance event](https://openairdocs.org/ntsb-events/040); cases with it: [All aircraft, 484 cases](https://openairdocs.org/ntsb-events/040/sequence.md) - [Takeoff: Miscellaneous/other](https://openairdocs.org/ntsb-events/900); cases with it: [All aircraft, 1,556 cases](https://openairdocs.org/ntsb-events/900/sequence.md) - [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) ## Analysis The pilot reported that prior to the accident flight and after the last annual inspection, the airplane had displayed poor (soft) braking qualities. This substandard braking capability required the pilot to pump the brakes to adequately decelerate on the ground. The pilot departed for a cross-country flight and did not lock the tailwheel. During landing at the destination airport, he was unable to maintain control of the airplane. The airplane ground looped counterclockwise, resulting in right landing gear collapsing and the right wing sustaining substantial damage. A postaccident examination of the airplane revealed the wheel brakes were improperly adjusted. ## Factual narrative The pilot stated prior to the accident flight the airplane had demonstrated poor (soft) braking qualities following its last annual inspection which required the pilot to pump the brakes. He also stated during departure for the cross country flight he did not lock the tail wheel. During landing at his destination, the airplane became uncontrollable and ground looped to the left, resulting in the right landing gear collapsing and substantially damaging the right wing. Subsequent inspection of the airplane revealed the wheel brakes were improperly adjusted. ## Aircraft - Registration: C-FGAT (not matched to a registry record) - Reported make and model: HAWKER MK-20 Sea Fury - Category: Airplane - Serial number: 414623282 - Engines: Wright R3350 2900 hp reciprocating - Damage: Substantial damage - Flight: Business, Part 91 - Operator: Cinima Sixteen Inc - Registered owner: Cinima Sixteen Inc - Airworthiness certificate: Special, Limited (Special) - Departed: FLP, Flippin, AR - Destination: BKD, Breakenridge, TX - Flight plan: IFR - Airport: BKD, Stephens County Airport, runway 35, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 72; airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, unknown; seat: front; flight hours: 47,691 total, 577 in this make and model ## Weather - Conditions: Visual (VMC), Day ## Docket (1 files) The files NTSB released with the investigation on November 30, 2010, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=77748. 554 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 554 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40340128&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.