# NTSB ERA11CA319: Aero AT SP Zoo AT-4 LSA, N709PR, Concord, NH, May 31, 2011 - Type: NTSB accident investigation - Classification: Accident · Serious injuries · Data collection · Final report - Date: May 31, 2011, 18:30 local (22:30 UTC) - Place: Concord, NH - Coordinates: 43.202777, -71.50222 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=43.2028&lon=-71.5022&mi=10 - Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping) - Defining event: [Approach-VFR go-around: Loss of control in flight](https://openairdocs.org/ntsb-events/240) - Highest injury: Serious injuries - Injuries: 1 serious - Status: Completed, report September 19, 2011 - Report: Approved by Office Director - NTSB office: Eastern Region Aviation - Parties: FAA/FSDO - NTSB case key (mKey): 79269 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ERA11CA319 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/79269/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=79269 - Page: https://openairdocs.org/ntsb/ERA11CA319 ## Probable cause The student pilot's loss of aircraft control during a go-around maneuver following a bounced landing. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Performance/control parameters: pitch control](https://openairdocs.org/ntsb-findings/01062022): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Aero AT SP Zoo AT-4 LSA, 1 case](https://openairdocs.org/ntsb-findings/01062022/cases.md?model=0600065), [All aircraft, 526 cases](https://openairdocs.org/ntsb-findings/01062022/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: [Aero AT SP Zoo AT-4 LSA, 1 case](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=0600065), [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 · Student/instructed pilot (probable cause); cases with it: [Aero AT SP Zoo AT-4 LSA, 1 case](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=0600065), [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. - [Landing-flare/touchdown: Abnormal runway contact](https://openairdocs.org/ntsb-events/090); cases with it: [Aero AT SP Zoo AT-4 LSA, 1 case](https://openairdocs.org/ntsb-events/090/sequence.md?model=0600065), [All aircraft, 1,506 cases](https://openairdocs.org/ntsb-events/090/sequence.md) - [Landing-flare/touchdown: Attempted remediation/recovery](https://openairdocs.org/ntsb-events/060); cases with it: [Aero AT SP Zoo AT-4 LSA, 1 case](https://openairdocs.org/ntsb-events/060/sequence.md?model=0600065), [All aircraft, 1,422 cases](https://openairdocs.org/ntsb-events/060/sequence.md) - [Approach-VFR go-around: Loss of control in flight](https://openairdocs.org/ntsb-events/240) (defining event); cases with it: [Aero AT SP Zoo AT-4 LSA, 1 case](https://openairdocs.org/ntsb-events/240/sequence.md?model=0600065), [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: [Aero AT SP Zoo AT-4 LSA, 1 case](https://openairdocs.org/ntsb-events/470/sequence.md?model=0600065), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis During landing of the student pilot's first solo cross country flight, the airplane bounced and began to drift to the left of the runway centerline. The student attempted unsuccessfully to correct the drift, and consequently performed a go-around. Images of the student pilot's go-around were captured by a security camera on the airport. Review of the captured images revealed that during the go-around, the airplane rolled and turned to the left, while simultaneously pitching up into a nose-high attitude. The airplane then pitched nose down while continuing to roll and turn left, before moving out of view of the security camera. A postaccident examination of the accident site revealed, that after moving out of view of the security camera, the airplane impacted the ground, 180 degrees off the runway heading, and nosed over. Examination of the airplane revealed that it had incurred substantial damage to the wings, fuselage, and engine firewall. No preimpact malfunctions of the airplane or engine were discovered. ## Factual narrative During landing, the airplane which was being flown by a student pilot on his first solo cross country flight, bounced, and began to drift to the left of the centerline of the runway. The student attempted to correct but was unable to. He consequently performed a go-around. Images of the student pilot's go-around were captured by a security camera. Review of the captured images revealed that during the go-around, the airplane rolled and turned to the left, while simultaneously pitching up into a nose high attitude. The airplane then pitched nose down while continuing to roll and turn left, before moving out of view of the security camera. Post accident examination of the accident site by a Federal Aviation Administration inspector revealed, that after moving out of view, the airplane impacted the ground, 180 degrees off the runway heading, and nosed over. Examination of the airplane revealed that it had incurred substantial damage to the wings, fuselage, and engine firewall. No preimpact malfunctions of the airplane or engine were discovered. ## Aircraft - Registration: [N709PR](https://openairdocs.org/deregistered/N709PR-2014-07-17), registration cancelled 2014-07-17, S/N AT4-022 (OpenAirDocs) - Reported make and model: AERO AT SP ZOO AT-4 LSA - Registry model: [Aero AT SP Zoo AT-4 LSA](https://openairdocs.org/model/aero-at-sp-zoo-at-4-lsa) (registry code 0600065) (OpenAirDocs) - Registry engine: [Rotax 912ULS series](https://openairdocs.org/engine/rotax-912uls-series) (registry code 55572, 4 cycle) (OpenAirDocs) - Category: Airplane - Serial number: AT4-022 - Airframe hours: 793 - Engines: ROTAX 912ULS 100 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Operator: Southern Maine Aviation LLC - Registered owner: Southern Maine Aviation LLC - Airworthiness certificate: Special, Special light-sport (Special) - Last inspection: 100 hour, February 24, 2011 - Departed: EEN, Keene, NH - Destination: CON, Concord, NH - Flight plan: Unknown - Airport: CON, Concord Municipal Airport, runway 17, 6,005 × 100 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Student pilot; age 66; injuries: serious; student; medical: class 3, without waivers/limitations; seat: left; flight hours: 100 total, 97 in this make and model, 4 as pilot in command, 22 in the last 90 days, 8 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 140° at 5 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 79 °F, dew point 52 °F - Altimeter: 30.13 inHg - Observed at: CON ## 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 20110531012589A](https://openairdocs.org/incident/20110531012589A), May 31, 2011: Aero At Sp Zoo AT-4 LSA, Concord, NH, Substantial damage. The aircraft was landing on runway 17 in Concord NH (con) as the aircraft was about to touch down the right wing dipped low and the aircraft touched on the… ## Docket (7 files) The files NTSB released with the investigation on July 12, 2011, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=79269. 1.4 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 531 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40350328&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.PDF - Witness Statements and Interview Summaries (item 2, .PDF, 386 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40350330&FileExtension=.PDF&FileName=Witness%20Statements%20and%20Interview%20Summaries-Redacted.PDF - Weather Reports and Records (KCON Metars) (item 3, .PDF, 94 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40350354&FileExtension=.PDF&FileName=Weather%20Reports%20and%20Records%20(KCON%20Metars)-Master.PDF - Security Camera Video (Shelf Item) (item 4, .PDF, 28 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40350355&FileExtension=.PDF&FileName=Security%20Camera%20Video%20(Shelf%20Item)-Master.PDF - Photograph of Main Wreckage (FAA) (item 5, .PDF, 151 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40350342&FileExtension=.PDF&FileName=Photograph%20of%20Main%20Wreckage%20(FAA)-Master.PDF - Photograph of Nose Area (FAA) (item 6, .PDF, 129 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40350343&FileExtension=.PDF&FileName=Photograph%20of%20Nose%20Area%20(FAA)-Master.PDF - Photograph of Left Side (FAA) (item 7, .PDF, 126 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40350344&FileExtension=.PDF&FileName=Photograph%20of%20Left%20Side%20(FAA)-Master.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.