# NTSB LAX08CA100: Questair Venture, N36V, Salt Lake City, UT, April 12, 2008 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Data collection · Final report - Date: April 12, 2008, 10:10 local (16:10 UTC) - Place: Salt Lake City, UT - Coordinates: 40.619445, -111.992774 - Nearby events: https://openairdocs.org/map.md?lat=40.6194&lon=-111.9928&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-landing roll: Landing area overshoot](https://openairdocs.org/ntsb-events/380) - Highest injury: Minor injuries - Injuries: 2 minor - Status: Completed, report May 28, 2008 - Report: Approved by Office Director - Parties: Federal Aviation Administration - NTSB case key (mKey): 67810 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX08CA100 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/67810/pdf - Page: https://openairdocs.org/ntsb/LAX08CA100 ## Probable cause The failure of the left side master brake cylinder that led to a loss of braking capability during landing rollout. A contributing factor was the presence of a ditch next to the runway's end. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Landing gear system: landing gear brakes system](https://openairdocs.org/ntsb-findings/01023240): Aircraft › Aircraft systems · Failure (probable cause); cases with it: [Questair VENTURE, 1 case](https://openairdocs.org/ntsb-findings/01023240/cases.md?model=05615A8), [All aircraft, 92 cases](https://openairdocs.org/ntsb-findings/01023240/cases.md) - [Airport facilities/design](https://openairdocs.org/ntsb-findings/03017000): Environmental issues › Operating environment · Not specified; cases with it: [Questair VENTURE, 1 case](https://openairdocs.org/ntsb-findings/03017000/cases.md?model=05615A8), [All aircraft, 52 cases](https://openairdocs.org/ntsb-findings/03017000/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: Landing area overshoot](https://openairdocs.org/ntsb-events/380) (defining event); cases with it: [Questair VENTURE, 1 case](https://openairdocs.org/ntsb-events/380/sequence.md?model=05615A8), [All aircraft, 400 cases](https://openairdocs.org/ntsb-events/380/sequence.md) - [Landing-landing roll: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Questair VENTURE, 2 cases](https://openairdocs.org/ntsb-events/470/sequence.md?model=05615A8), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) - [Landing-landing roll: Nose over/nose down](https://openairdocs.org/ntsb-events/096); cases with it: [Questair VENTURE, 1 case](https://openairdocs.org/ntsb-events/096/sequence.md?model=05615A8), [All aircraft, 2,287 cases](https://openairdocs.org/ntsb-events/096/sequence.md) ## Analysis The pilot made a normal landing on runway 16 in his amateur-built experimental airplane. The pilot reported that the airplane's left brake became dysfunctional during rollout, and he was unable to stop before reaching the runway's departure end. The airplane rolled over the runway's end, entered a ditch and nosed over. The airplane had decelerated to about 10 miles per hour when it exited the runway. An examination of the airplane's brake system revealed that the left side master brake cylinder had failed. ## Factual narrative The pilot made a normal landing on runway 16 in his amateur built experimental airplane. The pilot reported that his airplane's left brake became dysfunctional during rollout, and he was unable to stop before reaching the runway's departure end. The airplane rolled over the runway's end, entered a ditch and nosed over. The airplane had decelerated to about 10 miles per hour when it exited the runway. An examination of the airplane's brake system revealed that the left side master brake cylinder had failed. ## Aircraft - Registration: [N36V](https://openairdocs.org/deregistered/N36V-2012-03-15), registration cancelled 2012-03-15, S/N 16, built 2003 (OpenAirDocs) - Reported make and model: Questair, Inc. Venture - Registry model: [Questair VENTURE](https://openairdocs.org/model/questair-venture) (registry code 05615A8) (OpenAirDocs) - Registry engine: [Continental IO-550 series](https://openairdocs.org/engine/continental-io-550-series) (registry code 17042, reciprocating) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: 16 - Airframe hours: 350 - Engines: Continental IO-550 reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Alan M. Borg - Registered owner: Questair Ventures, LLC. - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Annual, October 1, 2007 - Departed: U42, Salt Lake City, UT - Destination: U42, Salt Lake City, UT - Airport: U42, Salt Lake City Muni 2, runway 16, 5,860 × 100 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 59; injuries: minor; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2; flight hours: 548 total, 350 in this make and model, 4 in the last 90 days, 2 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 150° at 7 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 55 °F ## 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 20080412014359A](https://openairdocs.org/incident/20080412014359A), Apr 12, 2008: Amtr VENTURE, Salt Lake City, UT, Substantial damage. (-23) The pilot stated that after landing he applied brakes. The left brake wasn't working well enough to stop or slow enough to turn. He thought it would slow… ## Other investigations on N36V (1) 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. - [NTSB ERA11CA482](https://openairdocs.org/ntsb/ERA11CA482), Sep 4, 2011: Questair Venture (N36V), Memphis, TN, substantial damage. Probable cause: The pilot's inability to maintain directional control during landing with a flat tire. Contributing to the accident was the failure of the left main landing gear tire for undetermined reasons. 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.