# NTSB DEN00LA055: Cessna P210N, N6489W, Gillette, WY, March 2, 2000 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: March 2, 2000, 11:00 local (18:00 UTC) - Place: Gillette, WY - Coordinates: 44.45948, -105.700584 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=44.4595&lon=-105.7006&mi=10 - Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report November 29, 2000 - Report: Approved by Office Director - NTSB case key (mKey): 48716 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN00LA055 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/48716/pdf - Page: https://openairdocs.org/ntsb/DEN00LA055 ## Probable cause The pilot's failure to land sooner to refuel, resulting in a power loss due to fuel exhaustion. A factor was a lack of suitable terrain on which to make a forced landing. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of engine power(total) - nonmechanical, cruise - normal - fluid,fuel - exhaustion (cause) - in-flight planning/decision - improper, pilot in command (cause) - refueling - not performed, pilot in command (cause) - Forced landing, descent - emergency - Nose over, landing - roll - terrain condition - mountainous/hilly - terrain condition - soft - terrain condition - none suitable (contributing factor) ## Analysis Prior to departure, the airplane was reportedly serviced to capacity (123 gallons). Weather was checked, and the pilot decided to fly VFR at 16,500 feet. No flight plan was filed. TAS was 185 knots, yielding an average GPS ground speed of 180 knots. It was estimated the 1,026 nm flight would take 5.7 hours. Allowing 20 minutes to climb to altitude, the pilot determined he would have more an hour of fuel reserve. Nearing his destination, the fuel gauges 'looked suspiciously low' (the Hoskins fuel calculator indicated 27 gallons of fuel remained). The pilot decided to divert to Gillette. Shortly thereafter, the engine lost power. The pilot made a forced landing on hilly terrain. The airplane touched down hard on a flat spot. The nose landing gear sheared off, and the airplane nosed over. Burning 120 gallons in 5.7 hours would require a consumption rate of slightly more than 21 gph. ## Factual narrative On March 2, 2000, approximately 1100 mountain standard time, a Cessna P210N, N6489W, registered to Flight Lease, Inc., was substantially damaged during a forced landing 1 mile north of Gillette, Wyoming. The private pilot and his passenger were not injured. Visual meteorological conditions prevailed, and no flight plan had been filed for the personal flight being conducted under Title 14 CFR Part 91. The flight originated in Pontiac, Michigan, approximately 0600 eastern standard time. The following is based on a telephone interview with the pilot and the written accident report he submitted. On the evening and morning before departure, the pilot instructed airport line personnel to service the airplane to capacity (123 gallons). He cautioned the attendants to make sure the airplane was parked on a level surface when it was serviced because "[fuel] will siphon. . .from one tank to another and then overboard." According to the fuel invoice, 95 gallons were added to the fuel load. He checked the weather and determined visual meteorological conditions would exist along the route. He elected to fly VFR at 16,500 feet. He did not file a flight plan. The pilot said he "attained a TAS (true airspeed) of approximately 185 knots" that yielded an average GPS (Global Positioning System) ground speed of 180 knots. For the 1,026 nm flight, he calculated it would 5.7 hours. He was satisfied with these figures because at fuel consumption rates of 15.6 and 16.5 gph (gallons per hour), the endurance is 7.7 and 7.3 hours, respectively. With a 20 minute allowance to climb to 16,500 feet at 24.5 gph, he calculated he would have "over an hour left for reserve after reaching Sheridan." When the airplane was 1 hour out from Sheridan, Wyoming, the fuel gauges "looked suspiciously low" (the Hoskins fuel calculator indicated 27 gallons of fuel remained). At that point, Sheridan was 20 minutes flying time away and Gillette was 22 nm away. He decided to divert to Gillette. Approximately 5 miles north of the Gillette Airport, the engine lost power. He declared an emergency with the Gillette control tower. Due to congestion on the frequency with emergency equipment, the pilot was unable to tell the tower where he intended to make a forced landing. The airplane touched down hard on a flat spot in hilly terrain. The nose landing gear was sheared off and the airplane nosed over. After evacuating the airplane, the pilot returned and checked the Hoskins fuel computer. It indicated 14 gallons. The pilot wrote, "I think there may have been a problem with the fuel computer; that my fuel burn was higher than indicated and thus the unexpected fuel starvation. "I honestly don't know what happened to my fuel. All indications were that I left with full tanks, including A SLIGHT DRIP (emphasis added) from the tanks where it was parked." Burning 120 gallons in 5.7 hours would require a consumption rate of slightly more than 21 gph. ## Aircraft - Registration: [N6489W](https://openairdocs.org/aircraft/N6489W), registered now, S/N P21000785, built 1981 (OpenAirDocs) - Reported make and model: Cessna P210N - Registry model: [Cessna P210N](https://openairdocs.org/model/cessna-p210n) (registry code 2073454) (OpenAirDocs) - Registry engine: [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series) (registry code 17040, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: P210-00785 - Airframe hours: 3502 - Engines: Continental TSIO-520-AF 310 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Flight Lease, Inc. - Airworthiness certificate: Standard, Normal - Last inspection: Annual, December 10, 1999, 142 hours before - Departed: PTK, PONTIAC, MI - Destination: SHR, SHERIDAN, WY - Airport: GCC, Gillette-Campbell County ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 51; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 9,449 total, 810 in this make and model, 730 as pilot in command, 257 in the last 90 days, 57 in the last 30 days, 6 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: variable at 3 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 48 °F, dew point 25 °F - Altimeter: 30.00 inHg - Observed at: GCC, 2 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 20000302036109A](https://openairdocs.org/incident/20000302036109A), Mar 2, 2000: Cessna P210N, Gillette, WY, No damage. (-23) The pilot failed to properly plan his cross country flight. He did not accurately compute time and distance for the fuel on board. He failed to verify… 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.