# NTSB CEN16LA217: Bellanca 17 30, N7346V, Westport, OK, June 11, 2016 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Limited investigation · Final report - Date: June 11, 2016, 09:15 local (14:15 UTC) - Place: Westport, OK - Coordinates: 36.210556, -96.254447 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=36.2106&lon=-96.2544&mi=10 - Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping) - Defining event: [Enroute-climb to cruise: Fuel starvation](https://openairdocs.org/ntsb-events/191) - Highest injury: Minor injuries - Injuries: 1 minor - Status: Completed, report October 6, 2016 - Report: Approved by Office Director - NTSB office: Central Region - Parties: FAA - NTSB case key (mKey): 93386 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN16LA217 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/93386/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=93386 - Page: https://openairdocs.org/ntsb/CEN16LA217 ## Probable cause A total loss of engine power due to fuel starvation and the pilot's mismanagement of the available fuel. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Fluids: fuel](https://openairdocs.org/ntsb-findings/01071010): Aircraft › Fluids/misc hardware · Fluid management (probable cause); cases with it: [Bellanca 17-30, 3 cases](https://openairdocs.org/ntsb-findings/01071010/cases.md?model=1220432), [All aircraft, 1,695 cases](https://openairdocs.org/ntsb-findings/01071010/cases.md) - [Planning/preparation: fuel planning](https://openairdocs.org/ntsb-findings/02061030): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Bellanca 17-30, 2 cases](https://openairdocs.org/ntsb-findings/02061030/cases.md?model=1220432), [All aircraft, 719 cases](https://openairdocs.org/ntsb-findings/02061030/cases.md) - [Info processing/decision: decision making/judgment](https://openairdocs.org/ntsb-findings/02041520): Personnel issues › Action/decision · Pilot; cases with it: [Bellanca 17-30, 2 cases](https://openairdocs.org/ntsb-findings/02041520/cases.md?model=1220432), [All aircraft, 3,098 cases](https://openairdocs.org/ntsb-findings/02041520/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Enroute-climb to cruise: Fuel starvation](https://openairdocs.org/ntsb-events/191) (defining event); cases with it: [Bellanca 17-30, 3 cases](https://openairdocs.org/ntsb-events/191/sequence.md?model=1220432), [All aircraft, 733 cases](https://openairdocs.org/ntsb-events/191/sequence.md) ## Analysis The pilot departed with the intention of filling the airplane's fuel tanks at a nearby airport before proceeding to his destination. Shortly after takeoff, the pilot adjusted the engine controls for cruise flight and then noticed a loss of engine power. He initiated emergency procedures by switching from the right main fuel tank to the left main fuel tank, turning on the fuel boost pump, and maneuvering the airplane for a forced landing. During the landing, the airplane contacted trees and then impacted an open field. A postaccident examination of the engine and fuel system revealed that the right main fuel tank was about three-quarters full and the other three fuel tanks were nearly empty. No fuel was present in the line from the fuel manifold to the metering unit or to the engine driven fuel pump. When tested, the boost pump delivered fuel from the right main fuel tank to the main fuel line. Other than the absence of fuel, no anomalies were noted with the engine that would have precluded normal operation. ## Factual narrative On June 11, 2016, about 0915 central daylight time, a Bellanca 17-30 airplane, N7346V, made a forced landing after a loss of engine power in flight near Westport, Oklahoma. The private rated pilot sustained minor injuries and the airplane sustained substantial damage. The airplane was registered to and operated by a private individual under the provisions of 14 Code of Federal Regulations Part 91 as a personal flight. Visual meteorological conditions prevailed at the time of the accident and no flight plan was filed. The flight departed from Westport Airport (4F1), Westport, Oklahoma, about 0910 and was en route to William R Pogue Municipal Airport (OWP), Sand Springs, Oklahoma. The pilot reported that he intended to top off the fuel tanks at OWP, about 10 miles east of 4F1, and then proceed to another airport. After departure he made a turn to east then northeast over Keystone Lake. He had just adjusted the engine control for cruise flight when he noticed a loss of engine power. He initiated emergency procedures by switching from the right main fuel tank to left main fuel tank and then turned on the fuel boost pump. The pilot reported that at this point the engine "sounded like it was trying to make power but, wasn't enough to maintain altitude". During the forced landing the airplane contacted trees and then impacted an open field. The airplane came to rest upright and sustained damage to the engine mounts, both wings, the fuselage, and the empennage. Immediately after the accident the pilot reported to a Federal Aviation Administration (FAA) inspector that the fuel in the tanks on the day of the accident was remaining from a previous cross country flight in March of 2016 and the accident flight was the first flight since then. He sumped all four fuel tanks prior to departure and no contamination was found. He used a homemade, calibrated fuel measuring stick to measure three of fuel tanks. There were 4 gallons in the right outboard tank, 19 gallons in the right main tank, 12 gallons in the left outboard tank, and the left main tank half full, but was not measured using the stick. He departed 4F1 with the fuel selector on the right inboard tank. Another FAA inspector and an airplane mechanic conducted a postaccident examination of the airplane, which revealed the right main tank was about ¾ full, the right outboard auxiliary tank, left main tank, and left outboard auxiliary tank were almost empty. An examination of the engine revealed that the crankshaft rotated smoothly when the propeller was turned by hand and compression was noted in each cylinder. The engine oil sump was dented, but not breached and contained clean oil on the dip stick. No issues were noted with magneto timing, spark plugs, or engine driven fuel pump. No fuel was present in the line from the fuel manifold to the metering unit or to the engine driven fuel pump. The main fuel line to the fuel pump was pulled from firewall during the accident. The main fuel strainer was empty.The drain valve was found open and exhibited impact signatures. The fuel selector was found on the left main fuel tank. In order to test the fuel system the drain valve was closed, the fuel selector switched to the right main tank, and the boost pump was successfully tested on both high and low settings. After priming the fuel flowed freely from the main fuel line. Other than the absence of fuel, no anomalies were noted with the engine that would have precluded normal operation. ## Aircraft - Registration: [N7346V](https://openairdocs.org/deregistered/N7346V-2019-05-06), registration cancelled 2019-05-06, S/N 30223, built 1969 (OpenAirDocs) - Reported make and model: BELLANCA 17 30 (UNDESIGNAT) - Registry model: [Bellanca 17-30](https://openairdocs.org/model/bellanca-17-30) (registry code 1220432) (OpenAirDocs) - Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 30223 - Year built: 1969 - Engines: CONTINENTAL MOTORS IO-520-D 285 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Standard, Normal - Last inspection: Annual, February 13, 2016, 2,975 hours before - Departed: 4F1, Westport, OK - Destination: OWP, SAND SPRINGS, OK - Airport: 4F1, Westport - Equipment: Electronic flight bag or handheld device, Stall warning system ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 57; injuries: minor; private; airplane ratings: single-engine land; medical: class 3, with waivers/limitations; last flight review November 22, 2015; seat: left; restraint: lap only; flight hours: 251 total, 174 in this make and model, 165 as pilot in command ## Weather - Conditions: Visual (VMC), Day - Wind: 180° at 5 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 82 °F, dew point 70 °F - Altimeter: 30.06 inHg - Observed at: KOWP, 16 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 20160611008299A](https://openairdocs.org/incident/20160611008299A), Jun 11, 2016: Bellanca 17-30, Cleveland, OK, Substantial damage. The aircraft departed from westport airport, 4F1, on a flight to pogue Oklahoma, kowp. The nearest weather reporting station, kowp, indicated weather… ## Docket (6 files) The files NTSB released with the investigation on August 9, 2016, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=93386. 3.2 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 1.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40443025&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF - FAA Inspectors Statement (item 2, .PDF, 58 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40443026&FileExtension=.PDF&FileName=FAA%20Inspectors%20Statement-Master.PDF - Mechanic Statement (item 3, .PDF, 63 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40443027&FileExtension=.PDF&FileName=Mechanic%20Statement-Master.PDF - Release of Aircraft Wreckage, NTSB Form 6120.15 (item 4, .PDF, 50 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40443028&FileExtension=.PDF&FileName=Release%20of%20Aircraft%20Wreckage,%20NTSB%20Form%206120.15-Master.PDF - Maintenance Records - Annual Inspection (item 5, .PDF, 255 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40443029&FileExtension=.PDF&FileName=Maintenance%20Records%20-%20Annual%20Inspection-Master.PDF - Photos (Courtesy of FAA) (item 6, .PDF, 5 photos, 1.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40443030&FileExtension=.PDF&FileName=Photos%20(Courtesy%20of%20FAA)-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.