# NTSB CEN12LA340: Quicksilver Sport II, N4396H, Manchester, IA, June 5, 2012 - Type: NTSB accident investigation - Classification: Accident · Fatal · Limited investigation · Final report - Date: June 4, 2012, 19:45 local (Jun 5, 2012, 00:45 UTC) - Place: Manchester, IA - Coordinates: 42.490276, -91.497779 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=42.4903&lon=-91.4978&mi=10 - Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping) - Defining event: [Maneuvering-low-alt flying: Aerodynamic stall/spin](https://openairdocs.org/ntsb-events/241) - Highest injury: Fatal - Injuries: 1 fatal - Status: Completed, report July 29, 2013 - Report: Approved by Office Director - NTSB office: Central Region - Parties: Federal Aviation Administration - NTSB case key (mKey): 83865 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN12LA340 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/83865/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=83865 - Page: https://openairdocs.org/ntsb/CEN12LA340 ## Probable cause An inadvertent aerodynamic stall while maneuvering at a low altitude. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Performance/control parameters: angle of attack](https://openairdocs.org/ntsb-findings/01062042): Aircraft › Aircraft oper/perf/capability · Capability exceeded (probable cause); cases with it: [Quicksilver SPORT II, 1 case](https://openairdocs.org/ntsb-findings/01062042/cases.md?model=05901D6), [All aircraft, 990 cases](https://openairdocs.org/ntsb-findings/01062042/cases.md) - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Quicksilver SPORT II, 1 case](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=05901D6), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Maneuvering-low-alt flying: Aerodynamic stall/spin](https://openairdocs.org/ntsb-events/241) (defining event); cases with it: [Quicksilver SPORT II, 1 case](https://openairdocs.org/ntsb-events/241/sequence.md?model=05901D6), [All aircraft, 1,529 cases](https://openairdocs.org/ntsb-events/241/sequence.md) - [Maneuvering: Loss of control in flight](https://openairdocs.org/ntsb-events/240); cases with it: [Quicksilver SPORT II, 1 case](https://openairdocs.org/ntsb-events/240/sequence.md?model=05901D6), [All aircraft, 5,002 cases](https://openairdocs.org/ntsb-events/240/sequence.md) - [Uncontrolled descent: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Quicksilver SPORT II, 2 cases](https://openairdocs.org/ntsb-events/470/sequence.md?model=05901D6), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis The airplane entered a sharp left bank turn over the airport at a low altitude before impacting the ground with the engine operating. The airplane wreckage was resting in a nose-down, left-wing-low orientation that was consistent with a stall. Examination of the wreckage revealed no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Factual narrative On June 4, 2012, about 1945 central daylight time, a Quicksilver Sport II, N4396H, impacted terrain while maneuvering over the Manchester Municipal Airport (C27), Manchester, Iowa. The certificated sport pilot was fatally injured. The aircraft sustained substantial damage to the fuselage and wings. The aircraft was registered to and operated by the pilot under the provisions of 14 Code of Federal Regulations Part 91 as a personal flight. Visual meteorological conditions prevailed for the flight, which had not been operating on a flight plan. The flight originated from the pilot's private airstrip near Ryan, Iowa, and was en route to C27. A witness saw the aircraft approach from the south on a northerly heading about 200 feet above the ground. The airplane turned toward the west at the midpoint of the field, which the witness assumed was for a left downwind entry for runway 36. The witness said that the aircraft had flown behind the hangar he was in when he heard it crash. Another witness stated that the aircraft made a "sharp left bank" and flew over the hangar for about 15-30 seconds prior to the crash. The aircraft was a 2008 Quicksilver Sport II, serial number 0934, experimental light-sport aircraft, that was registered to the pilot on December 21, 2007. The Application for U.S. Airworthiness Certificate owner's certification and FAA representative certification were dated January 21, 2008, and January 28, 2008, respectively, at a total airframe time of 1.2 hours. An aircraft logbook entry dated August 15, 2008, states that the aircraft flight test hours were completed. The last aircraft maintenance entry was dated March 22, 2009, which was for a broken ground wire leading from "regulator to frame." The last engine maintenance entry was dated July 27, 2010, which was for the installation of a replacement engine at a tachometer of 88 hours due to a rod bearing failure. Aircraft logbooks indicated that the airplane and engine had never received a condition inspection. According to the Federal Aviation Administration (FAA) inspector, witnesses reported that the aircraft was maneuvering, and the engine was operating at the time of the accident. The aircraft was located in a corn field about 100 yards west of runway 18/36 in a nose-down position, near vertical attitude. The left wing outer leading edge displayed impact damage and the wing was buckled. Examination of the flight control system confirmed flight control continuity. Engine control continuity was continuity was confirmed. Fuel was present in both carburetor float bowls. An autopsy of the pilot by the Iowa Department of Public Health, Ankeny Iowa, reported the cause of death as multiple blunt force injuries. The FAA Final Forensic Toxicology Fatal Accident Report stated: no carbon monoxide detected in blood, no cyanide detected in blood, no ethanol detected in vitreous, no drugs listed were detected in blood. ## Aircraft - Registration: [N4396H](https://openairdocs.org/deregistered/N4396H-2012-11-05), registration cancelled 2012-11-05, S/N 0934, built 2008 (OpenAirDocs) - Reported make and model: QUICKSILVER Sport II - Registry model: [Quicksilver SPORT II](https://openairdocs.org/model/quicksilver-sport-ii) (registry code 05901D6) (OpenAirDocs) - Registry engine: [Rotax 582DCDI](https://openairdocs.org/engine/rotax-582dcdi) (registry code 55562, 2 cycle) (OpenAirDocs) - Category: Airplane - Serial number: 0934 - Engines: Rotax 582DCDI 65 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Pilot - Registered owner: Pilot - Airworthiness certificate: Special, Experimental light sport (Special) - Departed: PVT, Ryan, MN - Destination: C27, Manchester, IA - Airport: C27, Manchester Municipal Airport ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 55; injuries: fatal; sport pilot; last flight review June 4, 2011; toxicology performed; flight hours: 177 total, 4 in the last 90 days, 1 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: calm - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 77 °F, dew point 55 °F - Altimeter: 29.90 inHg - Observed at: MXO, 22 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 20120604009779A](https://openairdocs.org/incident/20120604009779A), Jun 4, 2012: Quicksilver SPORT II, Manchester, IA, Destroyed, 1 fatal. Witnesses stated that the aircraft approached the airport from the south, on a north bound heading, at approximately 200' altitude. The aircraft turned west… ## Docket (9 files) The files NTSB released with the investigation on May 30, 2013, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=83865. 7.0 MB in all. - Witness Statements (item 1, .PDF, 269 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40387981&FileExtension=.PDF&FileName=Witness%20Statements-Redacted.PDF - Record of Examination (item 2, .PDF, 50 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40388029&FileExtension=.PDF&FileName=Record%20of%20Examination-Master.PDF - Weather Reports and Records (item 3, .PDF, 69 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40387983&FileExtension=.PDF&FileName=Weather%20Reports%20and%20Records-Master.PDF - Pilot Logbook (item 4, .PDF, 4.7 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40387988&FileExtension=.PDF&FileName=Pilot%20Logbook-Redacted.PDF - Aircraft Registration (item 5, .PDF, 176 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40387989&FileExtension=.PDF&FileName=Aircraft%20Registration-Redacted.PDF - Aircraft Airworthiness (item 6, .PDF, 586 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40387990&FileExtension=.PDF&FileName=Aircraft%20Airworthiness-Redacted.PDF - Aircraft Logbook (item 7, .PDF, 751 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40387991&FileExtension=.PDF&FileName=Aircraft%20Logbook-Redacted.PDF - Engine Logbook (item 8, .PDF, 365 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40388017&FileExtension=.PDF&FileName=Engine%20Logbook-Redacted.PDF - Toxicological Report (item 9, .PDF, 65 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40387997&FileExtension=.PDF&FileName=Toxicological%20Report-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.