# NTSB ANC12CA044: Silvaire Luscombe 8F, N9906C, Tok, AK, May 30, 2012 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: May 30, 2012, 11:30 local (19:30 UTC) - Place: Tok, AK - Coordinates: 63.324443, -142.952224 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=63.3244&lon=-142.9522&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-flare/touchdown: Nose over/nose down](https://openairdocs.org/ntsb-events/096) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report October 9, 2012 - Report: Approved by Office Director - NTSB office: Alaska Regional Office - Parties: FAA Fairbanks FSDO - NTSB case key (mKey): 83813 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC12CA044 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/83813/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=83813 - Page: https://openairdocs.org/ntsb/ANC12CA044 ## Probable cause The pilot's inadvertent and excessive application of brake pressure during landing, which resulted in a nose over. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Use of equip/info: use of equip/system](https://openairdocs.org/ntsb-findings/02063015): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Silvaire LUSCOMBE 8F, 1 case](https://openairdocs.org/ntsb-findings/02063015/cases.md?model=8190130), [All aircraft, 1,391 cases](https://openairdocs.org/ntsb-findings/02063015/cases.md) - [Landing gear system: brake](https://openairdocs.org/ntsb-findings/01023242): Aircraft › Aircraft systems · Unintentional use/operation (probable cause); cases with it: [Silvaire LUSCOMBE 8F, 1 case](https://openairdocs.org/ntsb-findings/01023242/cases.md?model=8190130), [All aircraft, 297 cases](https://openairdocs.org/ntsb-findings/01023242/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: Nose over/nose down](https://openairdocs.org/ntsb-events/096) (defining event); cases with it: [Silvaire LUSCOMBE 8F, 2 cases](https://openairdocs.org/ntsb-events/096/sequence.md?model=8190130), [All aircraft, 2,287 cases](https://openairdocs.org/ntsb-events/096/sequence.md) ## Analysis The pilot reported that during landing, he inadvertently applied excessive pressure to the brakes, and the airplane nosed over, resulting in substantial damage to the vertical stabilizer and rudder. He reported that the airplane had recently been modified with hydraulic brakes, but there were no preaccident mechanical anomalies with the airplane. ## Factual narrative The pilot reported that during landing, he inadvertently applied excessive pressure to the brakes, and the airplane nosed over, resulting in substantial damage to the vertical stabilizer and rudder. He reported that the airplane had recently been modified with hydraulic brakes, but there were no preaccident mechanical anomalies with the airplane. ## Aircraft - Registration: [N9906C](https://openairdocs.org/aircraft/N9906C), registered now, S/N S-9, built 1959 (OpenAirDocs) - Reported make and model: SILVAIRE LUSCOMBE 8F - Registry model: [Silvaire LUSCOMBE 8F](https://openairdocs.org/model/silvaire-luscombe-8f) (registry code 8190130) (OpenAirDocs) - Registry engine: [Continental C90 series](https://openairdocs.org/engine/continental-c90-series) (registry code 17009, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: S-9 - Airframe hours: 1660 - Engines: CONT MOTOR C90 SERIES 95 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: John Stevens - Registered owner: John Stevens - Airworthiness certificate: Standard, Normal - Last inspection: Annual, May 14, 2012, 4 hours before - Departed: PAGK, Glennallen, AK - Destination: PFTO, Tok, AK - Airport: PFTO, Tok Junction, runway 07, 2,509 × 50 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 60; injuries: none; airline transport; airplane ratings: multi-engine sea, single-engine land, multi-engine land, single-engine sea; instrument ratings: airplane; medical: class 2, with waivers/limitations; last flight review October 26, 2011; seat: left; flight hours: 7,000 total, 1 in this make and model, 6,000 as pilot in command, 20 in the last 90 days, 10 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: variable at 4 knots - Visibility: 10 statute miles - Lowest ceiling: 15,000 ft broken - Temperature: 57 °F, dew point 27 °F - Altimeter: 29.47 inHg - Observed at: PAOR, 35 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 20120530011159A](https://openairdocs.org/incident/20120530011159A), May 30, 2012: Silvaire LUSCOMBE 8F, Tok Junction, AK, Substantial damage. Pilot in command stated he applied the brakes inadvertently and the aircraft slowly nosed over. Also before the aircraft nosed over, the pilot pulled back on… ## Docket (1 files) The files NTSB released with the investigation on July 27, 2012, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=83813. 638 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 638 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40372807&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.