# NTSB WPR14CA090: Cessna 140, N76463, Marana, AZ, January 4, 2014 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: January 4, 2014, 15:00 local (22:00 UTC) - Place: Marana, AZ - Coordinates: 32.409442, -111.21833 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=32.4094&lon=-111.2183&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 April 1, 2014 - Report: Approved by Office Director - NTSB office: Western Pacific Region - NTSB case key (mKey): 88656 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR14CA090 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/88656/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=88656 - Page: https://openairdocs.org/ntsb/WPR14CA090 ## Probable cause The pilot did not maintain directional control during the landing roll out when the right brake did not release completely after he applied, then released brake pressure, which resulted in a ground loop. Contributing to the accident was the taxi speed. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Landing gear system: brake](https://openairdocs.org/ntsb-findings/01023242): Aircraft › Aircraft systems · Not specified (probable cause); cases with it: [Cessna 140, 11 cases](https://openairdocs.org/ntsb-findings/01023242/cases.md?model=2071602), [All aircraft, 297 cases](https://openairdocs.org/ntsb-findings/01023242/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: [Cessna 140, 27 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=2071602), [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Cessna 140, 56 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=2071602), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Performance/control parameters: surface speed/braking](https://openairdocs.org/ntsb-findings/01062045): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Cessna 140, 8 cases](https://openairdocs.org/ntsb-findings/01062045/cases.md?model=2071602), [All aircraft, 238 cases](https://openairdocs.org/ntsb-findings/01062045/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: [Cessna 140, 46 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=2071602), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) ## Analysis The pilot stated that he had completed four landings, and while at a fast taxi he touched both toe brakes. The airplane began a gradual turn to the right. He corrected the right turn first with left rudder control then left brake, however, neither action corrected the tightening right-hand turn. When the airplane encountered the edge of the runway, it nosed down and tilted to the left, substantially damaging the left wing. The pilot described the right brake as "dragging" throughout the accident sequence. ## Factual narrative The pilot stated that he had completed four landings, and while at a fast taxi he touched both toe brakes. The airplane began a gradual turn to the right. He corrected the right turn first with left rudder control then left brake, however, neither action corrected the tightening right-hand turn. When the airplane encountered the edge of the runway, it nosed down and tilted to the left, substantially damaging the left wing. The pilot described the right brake as "dragging" throughout the accident sequence. ## Aircraft - Registration: [N76463](https://openairdocs.org/aircraft/N76463), registered now, S/N 10895 (OpenAirDocs) - Reported make and model: CESSNA 140 (G) - Registry model: [Cessna 140](https://openairdocs.org/model/cessna-140) (registry code 2071602) (OpenAirDocs) - Registry engine: [Continental C85 series](https://openairdocs.org/engine/continental-c85-series) (registry code 17008, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 10895 - Year built: 1946 - Airframe hours: 5844.3 - Engines: CONT MOTOR C85 SERIES 85 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Standard, Normal - Last inspection: Annual, December 29, 2013 - Departed: KAVQ, Marana, AZ - Destination: KAVQ, Marana, AZ - Airport: KAVQ, Marana Regional Airport, runway 12, 3,892 × 75 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 66; injuries: none; private; airplane ratings: single-engine land; medical: class 3, with waivers/limitations; last flight review January 4, 2014; seat: left; restraint: lap only; flight hours: 853 total, 14.5 in this make and model ## Weather - Conditions: Visual (VMC), Day - Wind: calm - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 66 °F, dew point 28 °F - Altimeter: 29.96 inHg - Observed at: kryn, 16 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 20140104021069A](https://openairdocs.org/incident/20140104021069A), Jan 4, 2014: Cessna 140, Marana, AZ, Substantial damage. After completion of fourth landing and while at a fast taxi, pilot stated he touched both toe brakes. The airplane began to gradually turn to the right. He… ## Docket (1 files) The files NTSB released with the investigation on March 21, 2014, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=88656. 3.2 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 3.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40409283&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.