# NTSB CEN10CA444: Brewster Fleet 7-220, N798V, Manzanola, CO, July 28, 2010 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: July 27, 2010, 20:45 local (Jul 28, 2010, 01:45 UTC) - Place: Manzanola, CO - Coordinates: 38.10889, -103.854721 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=38.1089&lon=-103.8547&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-landing roll: Miscellaneous/other](https://openairdocs.org/ntsb-events/900) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report December 20, 2010 - Report: Approved by Office Director - NTSB office: Central Region - Parties: Federal Aviation Administration - NTSB case key (mKey): 76779 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN10CA444 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/76779/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=76779 - Page: https://openairdocs.org/ntsb/CEN10CA444 ## Probable cause A collision with a hidden obstruction during the landing roll. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Runway/land/takeoff/taxi surface](https://openairdocs.org/ntsb-findings/03023000): Environmental issues › Physical environment · Effect on operation (probable cause); cases with it: [Brewster FLEET 7, 1 case](https://openairdocs.org/ntsb-findings/03023000/cases.md?model=1461512), [All aircraft, 253 cases](https://openairdocs.org/ntsb-findings/03023000/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: Miscellaneous/other](https://openairdocs.org/ntsb-events/900) (defining event); cases with it: [Brewster FLEET 7, 1 case](https://openairdocs.org/ntsb-events/900/sequence.md?model=1461512), [All aircraft, 1,556 cases](https://openairdocs.org/ntsb-events/900/sequence.md) - [Landing-landing roll: Nose over/nose down](https://openairdocs.org/ntsb-events/096); cases with it: [Brewster FLEET 7, 1 case](https://openairdocs.org/ntsb-events/096/sequence.md?model=1461512), [All aircraft, 2,287 cases](https://openairdocs.org/ntsb-events/096/sequence.md) ## Analysis The pilot stated that he was transporting his newly acquired vintage bi-wing airplane to his home field. About 21 miles from the destination, the airplane encountered severe turbulence. The pilot attempted to approach the home airport from a different direction, but still encountered severe turbulence. Storms were visually detected by the pilot approaching the destination airport, so he diverted to avoid the storms. The pilot headed towards a private airfield and visually acquired what he thought was the landing area. The pilot performed a landing to an open, plowed, field. During the ground roll, the landing gear dug into a dirt "bump" and the airplane nosed over, coming to rest in an inverted position. The airplane's rudder was substantially damaged. ## Factual narrative In a statement provided by the commercial pilot, he was transporting his newly acquired vintage bi-wing airplane to his home field. About 21 miles from the destination, the airplane encountered severe turbulence. The pilot attempted to approach the home airport from a different direction, but still encountered severe turbulence. Storms were visually detected by the pilot approaching the destination airport, so he diverted to avoid the storms. The pilot headed towards a private airfield and visual acquired what he thought was the landing area. The pilot performed a landing to an open, plowed, field. During the ground roll, the landing gear dug into a dirt bump, the airplane nosed over, and came to rest in the inverted position. The airplane's rudder was substantially damaged. ## Aircraft - Registration: [N798V](https://openairdocs.org/aircraft/N798V), registered now, S/N 378 (OpenAirDocs) - Reported make and model: BREWSTER FLEET 7-220 - Registry model: [Brewster FLEET 7](https://openairdocs.org/model/brewster-fleet-7) (registry code 1461512) (OpenAirDocs) - Registry engine: [Continental W670 series](https://openairdocs.org/engine/continental-w670-series) (registry code 17018, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 378 - Airframe hours: 2603 - Engines: Continental W670-6N 220 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Standard, Normal - Last inspection: Annual, July 22, 2010, 10 hours before - Departed: LAA, Lamar, CO - Destination: A50, Ellicott, CO ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 60; injuries: none; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, with waivers/limitations; last flight review July 29, 2008; seat: rear; flight hours: 6,300 total, 8 in this make and model, 6,300 as pilot in command, 20 in the last 90 days, 20 in the last 30 days, 12 in the last 24 hours ## Weather - Conditions: Visual (VMC), Dusk - Wind: 360° at 23 knots, gusting 32 - Visibility: 10 statute miles - Temperature: 84 °F, dew point 52 °F - Altimeter: 30.03 inHg - Observed at: PUB ## 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 20100727040149A](https://openairdocs.org/incident/20100727040149A), Jul 27, 2010: Brewster FLEET 7, Manzanola, CO, Substantial damage. On July 27, 2010 at appx 2045 MDT, N798V piloted by [privacy data omitted] conducted off-aprt landing in ploughed field near Manzanola, CO. Aircraft slowed… ## Docket (1 files) The files NTSB released with the investigation on August 16, 2010, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=76779. 644 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 644 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40334550&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.