# NTSB ANC13CA080: Cessna U206, N2141F, Sleetmute, AK, August 15, 2013 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Data collection · Final report - Date: August 15, 2013, 11:30 local (19:30 UTC) - Place: Sleetmute, AK - Coordinates: 61.700279, -157.165832 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=61.7003&lon=-157.1658&mi=10 - Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping) - Defining event: [Approach-VFR pattern downwind: Fuel starvation](https://openairdocs.org/ntsb-events/191) - Highest injury: Minor injuries - Injuries: 1 minor - Status: Completed, report December 2, 2013 - Report: Approved by Office Director - NTSB office: Alaska Regional Office - Parties: Federal Aviation Administration - NTSB case key (mKey): 87798 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC13CA080 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/87798/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=87798 - Page: https://openairdocs.org/ntsb/ANC13CA080 ## Probable cause The total loss of engine power due to fuel starvation and the pilot's inadequate preflight inspection. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Inspection: preflight inspection](https://openairdocs.org/ntsb-findings/02061510): Personnel issues › Task performance · Pilot (probable cause) - [Fuel system: fuel selector/shutoff valve](https://openairdocs.org/ntsb-findings/01022823): Aircraft › Aircraft systems · Inadequate inspection (probable cause) - [Fluids: fuel](https://openairdocs.org/ntsb-findings/01071010): Aircraft › Fluids/misc hardware · Fluid management (probable cause) ## Analysis The pilot reported that during a postmaintenance flight, while remaining in the airport traffic pattern, the engine lost all power. The pilot selected an area of tree-covered terrain as a forced landing site, resulting in substantial damage to the wings and fuselage. He stated that the reason for the loss of engine power was due to fuel starvation, and that he did not verify the position of the fuel selector valve before the flight. He added that when the airplane recently underwent maintenance, the fuel selector valve handle was positioned to the right fuel tank, which had a slight amount of fuel remaining. The pilot said that he routinely used the left fuel tank, which contained sufficient fuel for the flight. The pilot reported no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Factual narrative The pilot reported that during a postmaintenance flight, while remaining in the airport traffic pattern, the engine lost all power. The pilot selected an area of tree-covered terrain as a forced landing site, resulting in substantial damage to the wings and fuselage. He stated that the reason for the loss of engine power was due to fuel starvation, and that he did not verify the position of the fuel selector valve before the flight. He added that when the airplane recently underwent maintenance, the fuel selector valve handle was positioned to the right fuel tank, which had a slight amount of fuel remaining. The pilot said that he routinely used the left fuel tank, which contained sufficient fuel for the flight. The pilot reported no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Approach-VFR pattern downwind: Loss of engine power (total)](https://openairdocs.org/ntsb-events/341) - [Approach-VFR pattern downwind: Fuel starvation](https://openairdocs.org/ntsb-events/191) (defining event) - [Emergency descent: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470) ## Aircraft - Registration: [N2141F](https://openairdocs.org/aircraft/N2141F), registered now, S/N U206-0341, built 1965 (OpenAirDocs) - Reported make and model: CESSNA U206 - Registry model: [Cessna U206](https://openairdocs.org/model/cessna-u206) (registry code 2073306) (OpenAirDocs) - Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: U206-0341 - Airframe hours: 8737 - Engines: CONT MOTOR IO 520 SERIES 285 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Hill Henry M - Registered owner: Hill Henry M - Airworthiness certificate: Standard, Normal - Last inspection: Annual, April 22, 2013, 70 hours before - Departed: PASL, Sleetmute, AK - Destination: PASL, Sleetmute, AK - Airport: PASL, Sleetmute Airport ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 64; injuries: minor; private; airplane ratings: single-engine land; medical: class 3, with waivers/limitations; last flight review January 4, 2013; seat: left; flight hours: 6,413 total, 5,893 in this make and model, 6,387 as pilot in command ## Weather - Conditions: Visual (VMC), Day - Wind: 130° at 4 knots - Visibility: 10 statute miles - Lowest ceiling: 6,000 ft overcast - Temperature: 55 °F, dew point 52 °F - Altimeter: 29.85 inHg ## 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 20130815017889A](https://openairdocs.org/incident/20130815017889A), Aug 15, 2013: Cessna U206, Sleetmute, AK, Substantial damage. The aircraft engine had just undergone extensive maintenance with the replacement of all six cylinders. Mechanic ran up the aircraft the night before the… ## Other investigations on N2141F (1) 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. - [NTSB ANC76AA079](https://openairdocs.org/ntsb/ANC76AA079), Apr 4, 1976: Cessna U206 (N2141F), Beluga, AK, substantial damage ## Docket (2 files) The files NTSB released with the investigation on November 20, 2013, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=87798. 506 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 453 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40399952&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.PDF - Record of Conversation - Pilot (item 2, .PDF, 53 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40399953&FileExtension=.PDF&FileName=Record%20of%20Conversation%20-%20Pilot-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.