# NTSB WPR10LA280: Beech F33, N1565A, Marana, AZ, June 5, 2010 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: June 5, 2010, 15:01 local (22:01 UTC) - Place: Marana, AZ - Coordinates: 32.471942, -111.164718 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=32.4719&lon=-111.1647&mi=10 - Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping) - Defining event: [Approach-VFR pattern final: Loss of engine power (total)](https://openairdocs.org/ntsb-events/341) - Highest injury: No injuries - Injuries: 3 uninjured - Status: Completed, report September 19, 2011 - Report: Approved by Office Director - NTSB office: Western Pacific Region - Parties: Federal Aviation Administration - NTSB case key (mKey): 76220 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR10LA280 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/76220/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=76220 - Page: https://openairdocs.org/ntsb/WPR10LA280 ## Probable cause The loss of engine power while maneuvering to land for undetermined reasons. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Not determined](https://openairdocs.org/ntsb-findings/05000000): Not determined › Not determined · Unknown/Not determined (probable cause); cases with it: [Beech F33A, 8 cases](https://openairdocs.org/ntsb-findings/05000000/cases.md?model=1151425), [All aircraft, 2,247 cases](https://openairdocs.org/ntsb-findings/05000000/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Approach-VFR pattern final: Loss of engine power (total)](https://openairdocs.org/ntsb-events/341) (defining event); cases with it: [Beech F33A, 14 cases](https://openairdocs.org/ntsb-events/341/sequence.md?model=1151425), [All aircraft, 3,820 cases](https://openairdocs.org/ntsb-events/341/sequence.md) - [Emergency descent: Off-field or emergency landing](https://openairdocs.org/ntsb-events/440); cases with it: [Beech F33A, 8 cases](https://openairdocs.org/ntsb-events/440/sequence.md?model=1151425), [All aircraft, 3,365 cases](https://openairdocs.org/ntsb-events/440/sequence.md) - [Landing-landing roll: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Beech F33A, 21 cases](https://openairdocs.org/ntsb-events/470/sequence.md?model=1151425), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis While maneuvering to enter the traffic pattern prior to landing, the airplane's engine experienced a partial power loss. The flight instructor took control of the airplane from the student pilot and turned on the fuel pump, which resulted in power being temporarily restored to the engine, followed about 10 seconds later by a total loss of engine power. During the off-airport forced landing, the left wing's leading edge struck a tree, resulting in substantial damage. A postaccident inspection of the engine's fuel control unit and engine driven fuel pump revealed no anomalies that would have precluded normal operation. Additionally, a technician who examined the engine reported that the engine did not exhibit any abnormalities that would have prevented normal operation and production of rated horsepower. The reason for the total power loss could not be determined. ## Factual narrative On June 5, 2010, about 1501 mountain standard time, a Beech F33A airplane, N1565A, was substantially damaged following a forced landing after experiencing a loss of engine power near the Marana Regional Airport (AVQ), Marana, Arizona. The airplane was registered to Airline Training Center Arizona, Inc., of Goodyear, Arizona. The certified flight instructor and two student pilots were not injured. Visual meteorological conditions prevailed for the instructional cross-country flight, which was operated in accordance with 14 Code of Federal Regulations (CFR) Part 91, and a flight plan was not filed. The flight departed the Phoenix Goodyear Airport (GYR), Goodyear, Arizona, about 1304. In a written statement submitted to the Safety Board investigator-in-charge (IIC), the flight instructor reported that due to conflicting company traffic entering the airport traffic pattern, he elected to proceed to the northeast to wait for the traffic to clear. The instructor further reported that while maneuvering about 6 miles to the northeast of the airport "...we experienced a partial power loss, [and] the aircraft [engine] surged. I took command of the aircraft and turned the fuel pump on. The aircraft started a slow descent due to the power loss." The instructor pilot stated that power was temporarily restored but not to full power, and then about 10 seconds later the airplane's engine experienced a total power failure. The instructor reported that he maneuvered about 30 degrees to the right, established a glide angle to the selected forced landing site, rolled the wings level and placed the landing gear and flaps in the down position, while at the same time pulling the throttle and mixture controls back to idle and setting the propeller control to low rpm. The pilot stated that during the forced landing the airplane's leading edge of the left wing struck a tree just seconds before touching down, which turned the airplane about 90 degrees to the left. The instructor added, "We touched down on a dirt embankment and slid approximately 30 to 50 feet, and the aircraft came to rest against a small tree at the trailing edge of the right wing root." At the request of the IIC, a Federal Aviation Administration (FAA) aviation safety inspector took possession of both the engine's fuel control unit and engine driven fuel pump, both of which were examined and bench tested at the facilities of Varga Enterprises, Phoenix, Arizona. The inspector reported that when compared to the appropriate acceptable allowance parameter charts, both components tested were found to be within acceptable operating limits and showed no indications of an in-flight failure. Under the supervision of the FAA inspector, the airplane's engine underwent a field inspection conducted by a Teledyne-Continental Motors field technician at the operator's facility in Goodyear, Arizona. The technician's inspection report revealed that the inspection of the engine did not reveal any abnormalities that wouldhave prevented normal operation and production of rated horsepower. ## Aircraft - Registration: [N1565A](https://openairdocs.org/deregistered/N1565A-2011-02-28), registration cancelled 2011-02-28, S/N CE-1331, built 1989 (OpenAirDocs) - Reported make and model: BEECH F33 (A) - Registry model: [Beech F33A](https://openairdocs.org/model/beech-f33a) (registry code 1151425) (OpenAirDocs) - Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: CE-1331 - Airframe hours: 21546 - Engines: CONTINENTAL IO520 285 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Operator: Airline Transport Training Center Arizona Inc. - Registered owner: Airline Transport Training Center Arizona Inc. - Airworthiness certificate: Standard, Normal; Standard, Utility - Last inspection: AAIP, June 4, 2010, 2 hours before - Departed: GYR, Goodyear, AZ - Destination: AVQ, Marana, AZ - Flight plan: VFR - Airport: AVQ, Marana Regional, runway 30, 6,901 × 100 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Flight instructor; age 53; injuries: none; airline transport, flight instructor; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, with waivers/limitations; last flight review October 21, 2009; seat: right; flight hours: 5,835 total, 3,267 in this make and model, 115 in the last 90 days, 62 in the last 30 days, 2 in the last 24 hours - Student pilot; age 22; injuries: none; student; medical: class 3, without waivers/limitations; seat: left; flight hours: 47 total, 47 in this make and model, 6 as pilot in command, 47 in the last 90 days, 30 in the last 30 days, 2 in the last 24 hours - Student pilot; injuries: none; student; seat: rear; flight hours: 42 total ## Weather - Conditions: Visual (VMC), Day - Wind: 260° at 7 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 102 °F, dew point 28 °F - Altimeter: 29.95 inHg - Observed at: TUS, 19 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 20100605037779A](https://openairdocs.org/incident/20100605037779A), Jun 5, 2010: Beech F33A, Marana, AZ, Substantial damage. N1565A was conducting a cross country flight from phx goodyear airport to Marana Northwest Regional Airport (avq). Various private pilot certification… ## Other investigations on N1565A (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 LAX00LA074](https://openairdocs.org/ntsb/LAX00LA074), Jan 11, 2000: Beech F-33A (N1565A), Mobile, AZ, substantial damage. Probable cause: the manufacturer representative's improper reinstallation of the crankshaft counterweight snap rings which subsequently separated, allowing the crankshaft counterweight to contact the crankshaft… ## Docket (7 files) The files NTSB released with the investigation on June 29, 2011, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=76220. 1.3 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 662 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40349302&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.PDF - Weather Report (item 2, .PDF, 57 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40349303&FileExtension=.PDF&FileName=Weather%20Report-Master.PDF - FAA Inspector's Report (item 3, .PDF, 39 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40349304&FileExtension=.PDF&FileName=FAA%20Inspector%27s%20Report-Master.PDF - Teledyne-Continental Field Report (item 4, .PDF, 133 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40349305&FileExtension=.PDF&FileName=Teledyne-Continental%20Field%20Report-Redacted.PDF - Certification of Party Representative (item 5, .PDF, 332 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40349306&FileExtension=.PDF&FileName=Certification%20of%20Party%20Representative-Redacted.PDF - NTSB Release of Wreckage Form (item 6, .PDF, 40 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40349307&FileExtension=.PDF&FileName=NTSB%20Release%20of%20Wreckage%20Form-Redacted.PDF - NTSB Receipt of Parts Form (item 7, .PDF, 42 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40349308&FileExtension=.PDF&FileName=NTSB%20Receipt%20of%20Parts%20Form-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.