# NTSB WPR12CA121: Siai-Marchetti SF.260TP, N350TP, Corona, CA, March 2, 2012 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: March 2, 2012, 14:30 local (22:30 UTC) - Place: Corona, CA - Coordinates: 33.891944, -117.601387 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=33.8919&lon=-117.6014&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-aborted after touchdown: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report May 3, 2012 - Report: Approved by Office Director - NTSB office: Western Pacific Region - Parties: Federal Aviation Administration - NTSB case key (mKey): 83022 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR12CA121 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/83022/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=83022 - Page: https://openairdocs.org/ntsb/WPR12CA121 ## Probable cause The pilot did not maintain runway alignment during landing in a gusting crosswind. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Wind: gusts](https://openairdocs.org/ntsb-findings/03034045): Environmental issues › Conditions/weather/phenomena · Contributed to outcome; cases with it: [Siai-Marchetti SF.260TP, 1 case](https://openairdocs.org/ntsb-findings/03034045/cases.md?model=8121220), [All aircraft, 1,199 cases](https://openairdocs.org/ntsb-findings/03034045/cases.md) - [Wind: crosswind](https://openairdocs.org/ntsb-findings/03034040): Environmental issues › Conditions/weather/phenomena · Contributed to outcome; cases with it: [Siai-Marchetti SF.260TP, 1 case](https://openairdocs.org/ntsb-findings/03034040/cases.md?model=8121220), [All aircraft, 1,008 cases](https://openairdocs.org/ntsb-findings/03034040/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: [Siai-Marchetti SF.260TP, 1 case](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=8121220), [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: [Siai-Marchetti SF.260TP, 1 case](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=8121220), [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-aborted after touchdown: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Siai-Marchetti SF.260TP, 1 case](https://openairdocs.org/ntsb-events/230/sequence.md?model=8121220), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing-landing roll: Runway excursion](https://openairdocs.org/ntsb-events/300); cases with it: [Siai-Marchetti SF.260TP, 1 case](https://openairdocs.org/ntsb-events/300/sequence.md?model=8121220), [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md) - [Landing-landing roll: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Siai-Marchetti SF.260TP, 1 case](https://openairdocs.org/ntsb-events/470/sequence.md?model=8121220), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis The pilot reported that, because the automated airport weather station report was unavailable prior to landing, he overflew the airport and determined from the windsock that runway 24 was favored. About the time the airplane touched down, it encountered a strong wind gust, which prompted the pilot to initiate a go-around. As he applied power, the airplane drifted to the left, and his attempts to correct back to the right were unsuccessful. The airplane subsequently collided with a stationary airplane, an automobile, and a hangar, which resulted in substantial damage to both wings and the fuselage. A review of the reported weather data for the airport revealed that, around the time of the accident, wind gusts of about 25 knots from 040 degrees were recorded. The pilot reported no mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Factual narrative The pilot reported that as the automated weather reporting facility was inoperable prior to landing, he overflew the airport and determined from the windsock that runway 24 was favored. The pilot stated that about the time he touched down he encountered a strong wind gust, which prompted him to initiate a go-around. The pilot added that as he applied power the airplane drifted to the left and that his attempts to correct back to the right were unsuccessful. The airplane subsequently collided with a stationary airplane, an automobile and a hangar. The airplane came to rest in an upright position and had sustained substantial damage to both wings and its fuselage. A review of the Aviation Routine Weather Report (METAR) data for the airport revealed that from about 34 minutes prior to, to about 26 minutes after the accident, wind gusts were reported to be from 040 degrees at 24 knots and 25 knots respectively. The pilot reported no mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N350TP](https://openairdocs.org/deregistered/N350TP-2015-06-26), registration cancelled 2015-06-26, S/N 011/62-004, built 1983 (OpenAirDocs) - Reported make and model: SIAI-MARCHETTI SF.260TP - Registry model: [Siai-Marchetti SF.260TP](https://openairdocs.org/model/siai-marchetti-sf-260tp) (registry code 8121220) (OpenAirDocs) - Registry engine: [Allison 250-B17 series](https://openairdocs.org/engine/allison-250-b17-series) (registry code 03017, turbo-prop) (OpenAirDocs) - Category: Airplane - Serial number: 011/62-004 - Airframe hours: 2602 - Engines: Rolls Royce Allison B 17 D 350 horsepower turbo prop - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Steve B Maiman - Registered owner: Ac Sunni LLC - Airworthiness certificate: Standard, Utility - Last inspection: Annual, February 24, 2012, 0 hours before - Departed: CNO, Chino, CA - Destination: AJO, Corona, CA - Airport: AJO, Corona Municipal, runway 25, 3,200 × 60 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 63; injuries: none; private; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 3, with waivers/limitations; last flight review October 20, 2010; seat: right; flight hours: 3,428 total, 570 in this make and model, 3,284 as pilot in command, 34 in the last 90 days, 9 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 40° at 18 knots, gusting 25 - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 70 °F - Altimeter: 30.14 inHg - Observed at: AJO ## 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 20120302004981A](https://openairdocs.org/incident/20120302004981A), Mar 2, 2012: Siai-Marchetti SF.260TP, Corona, CA, Substantial damage. On March 2nd 2012, an Siai-Marchetti sf 260 tp, registration number N350TP lost control during landing on Corona (ajo) airports runway 24 at 14:40 pacific… ## Docket (2 files) The files NTSB released with the investigation on March 28, 2012, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=83022. 4.1 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 4.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40365106&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.PDF - Weather Data (item 2, .PDF, 32 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40364764&FileExtension=.PDF&FileName=Weather%20Data-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.