# NTSB SEA94LA025: Cessna T210F, N6177R, Sheridan, WY, November 3, 1993 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: November 3, 1993, 16:15 local (23:15 UTC) - Place: Sheridan, WY - Coordinates: 44.790637, -106.950279 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=44.7906&lon=-106.9503&mi=10 - Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report September 26, 1994 - Report: Approved by Office Director - NTSB case key (mKey): 41848 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA94LA025 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/41848/pdf - Page: https://openairdocs.org/ntsb/SEA94LA025 ## Probable cause THE PILOT DID NOT OBTAIN PROPER ASSISTANCE AFTER LANDING IN HIGH WING CONDITIONS. FACTORS CONTRIBUTING TO THE ACCIDENT WERE THE STRONG, GUSTY WIND CONDITIONS. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Nose over, taxi - from landing - weather condition - gusts (contributing factor) - weather condition - high wind (contributing factor) - proper assistance - not obtained, pilot in command (cause) ## Analysis THE PILOT DIVERTED INTO SHERIDAN, WYOMING, DUE TO INCLEMENT WEATHER AND LANDED ON RUWNAY 31. HE EXITED RUNWAY 31 APPROXIMATELY MIDFIELD ONTO RUNWAY 05 AND WAS TAXIING NORTHEAST WHEN A GUST OF WIND CAUGHT THE AIRCRAFT AND FLIPPED IT INVERTED. SURFACE WINDS REPORTED AT THE TIME OF THE MISHAP AT THE AIRPORT WERE 300 DEGREES MAGNETIC AT 30 KNOTS WITH GUSTS OF 43 KNOTS. STRONG WESTERLY TO NORTHWESTERLY WINDS WERE REPORTED AT THE AIRPORT DURING THE AFTERNOON OF THE ACCIDENT. ## Factual narrative On November 3, 1993, at approximately 1615 hours mountain standard time (MST), a Cessna T210F, N6177R, registered to and operated by Engineered Control Systems, Inc., and being taxied by William E. Vanderloos, a certificated private pilot, was substantially damaged when the aircraft nosed over while taxiing on runway 23 at the Sheridan County Airport, Sheridan, Wyoming. The pilot was uninjured. Visual meteorological conditions existed and a VFR flight plan had been filed. The flight, which was personal in nature, was to have been operated in accordance with the requirements set forth in 14CFR91 and originated at Spearfish, South Dakota, at 1500 MST and was destined for Billings, Montana. The pilot reported that he had just landed on runway 31 after deciding to divert into Sheridan due to inclement weather. After exiting runway 31 and while taxiing east on runway 23 a gust of wind "hit the aircraft (from 300 degrees) on a direct crosswind, skidded the aircraft to the right, lifted the tail and subse- quently flipped the aircraft on its back" (refer to CHART I). A surface weather observation taken at 1618 hours (MST) immediately following the mishap was recorded as follows: SHR L 2318 40 SCT E75 BKN 250 40 52/31/3330G43/963 ACFT MISHAP This observation reported winds as 30 knots from 330 degrees (true) with gusts to 43 knots. Strong westerly to northwesterly winds were reported at the airport throughout the afternoon of the accident (refer to ATTACHMENT M-I). ## Aircraft - Registration: [N6177R](https://openairdocs.org/deregistered/N6177R-1998-11-05), registration cancelled 1998-11-05, S/N T2100077 (OpenAirDocs) - Reported make and model: CESSNA T210F - Registry model: [Cessna T210F](https://openairdocs.org/model/cessna-t210f) (registry code 2073422) (OpenAirDocs) - Category: Airplane - Serial number: T210-0077 - Airframe hours: 5907 - Engines: CONTINENTAL TSIO-520 285 horsepower reciprocating - Damage: Substantial damage - Flight: Business, Part 91 - Operator: Vanderloos, William, E. - Registered owner: Engineered Control Systems Inc - Airworthiness certificate: Standard, Normal - Last inspection: Annual, December 10, 1992, 85 hours before - Departed: SPF, SPEARFISH, SD - Destination: BIL, BILLINGS, MT - Flight plan: VFR - Airport: SHR, Sheridan County ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 42; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 409 total, 359 in this make and model, 375 as pilot in command, 39 in the last 90 days, 9 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 300° at 30 knots, gusting 27 - Visibility: 60 statute miles - Lowest ceiling: 11,000 ft broken - Temperature: 59 °F, dew point 23 °F - Altimeter: 29.00 inHg - Observed at: SHR ## 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 19931103042109A](https://openairdocs.org/incident/19931103042109A), Nov 3, 1993: Cessna T210F, Sheridan, WY, Substantial damage. Blown over by severe gusty surface wind taxiing to ramp after landing. Had diverted due weather at destination. 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.