# NTSB ANC18CA054: Curtiss Wright C46, N1822M, Manley Hot Springs, AK, July 16, 2018 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Data collection · Final report - Date: July 16, 2018, 09:25 local (17:25 UTC) - Place: Manley Hot Springs, AK - Coordinates: 64.988891, -150.646942 - Nearby events: https://openairdocs.org/map.md?lat=64.9889&lon=-150.6469&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing: Runway excursion](https://openairdocs.org/ntsb-events/300) - Highest injury: Minor injuries - Injuries: 2 minor - Status: Completed, report March 18, 2019 - Report: Approved by Office Director - NTSB office: Alaska Regional Office - Parties: FAA - NTSB case key (mKey): 97796 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC18CA054 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/97796/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=97796 - Page: https://openairdocs.org/ntsb/ANC18CA054 ## Probable cause The pilot's failure to attain the proper touchdown speed and his decision to land with a tailwind without ensuring that there was adequate runway length for the touchdown. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Performance/control parameters: airspeed](https://openairdocs.org/ntsb-findings/01062010): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Curtiss Wright C-46F, 1 case](https://openairdocs.org/ntsb-findings/01062010/cases.md?model=2622608), [All aircraft, 1,681 cases](https://openairdocs.org/ntsb-findings/01062010/cases.md) - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Curtiss Wright C-46F, 1 case](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=2622608), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Info processing/decision: decision making/judgment](https://openairdocs.org/ntsb-findings/02041520): Personnel issues › Action/decision · Pilot (probable cause); cases with it: [Curtiss Wright C-46F, 1 case](https://openairdocs.org/ntsb-findings/02041520/cases.md?model=2622608), [All aircraft, 3,098 cases](https://openairdocs.org/ntsb-findings/02041520/cases.md) - [Wind: tailwind](https://openairdocs.org/ntsb-findings/03034015): Environmental issues › Conditions/weather/phenomena · Effect on operation; cases with it: [Curtiss Wright C-46F, 1 case](https://openairdocs.org/ntsb-findings/03034015/cases.md?model=2622608), [All aircraft, 594 cases](https://openairdocs.org/ntsb-findings/03034015/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing: Miscellaneous/other](https://openairdocs.org/ntsb-events/900); cases with it: [Curtiss Wright C-46F, 1 case](https://openairdocs.org/ntsb-events/900/sequence.md?model=2622608), [All aircraft, 1,556 cases](https://openairdocs.org/ntsb-events/900/sequence.md) - [Landing: Runway excursion](https://openairdocs.org/ntsb-events/300) (defining event); cases with it: [Curtiss Wright C-46F, 1 case](https://openairdocs.org/ntsb-events/300/sequence.md?model=2622608), [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md) ## Analysis The pilot reported that, following a precautionary shutdown of the No. 2 engine, he diverted to an alternate airport that was closer than the original destination. During the landing in tailwind conditions, the airplane touched down "a little fast." The pilot added that, as the brakes faded from continuous use, the airplane was unable to stop, and it overran the end of the runway, which resulted in substantial damage to the fuselage. The pilot reported that there were no mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Factual narrative The pilot reported that following a precautionary shutdown of the number 2 engine, he diverted to an alternate airport that was closer than the original destination. During the landing in tailwind conditions, the airplane touched down "a little fast." The pilot added that, as the brakes faded from continuous use, the airplane was unable to stop and overran the end of the runway, which resulted in substantial damage to the fuselage. The pilot reported that there were no mechanical malfunctions or anomalies that would have precluded an uneventful single engine landing. ## Aircraft - Registration: [N1822M](https://openairdocs.org/aircraft/N1822M), registered now, S/N 22521, built 1945 (OpenAirDocs) - Reported make and model: Curtiss Wright C46 (UNDESIGNAT) - Registry model: [Curtiss Wright C-46F](https://openairdocs.org/model/curtiss-wright-c-46f) (registry code 2622608) (OpenAirDocs) - Registry engine: [Pratt & Whitney R-2800 series](https://openairdocs.org/engine/pratt-whitney-r-2800-series) (registry code 52026, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 22521 - Year built: 1945 - Airframe hours: 37049.6 - Engines: Pratt & Whitney R2800-51M1 2000 horsepower reciprocating; Pratt & Whitney R2800-51M1 2000 horsepower reciprocating - Damage: Substantial damage - Flight: Business, Part 91 - Operator: Everts Air Fuel Inc - Registered owner: Everts Air Fuel Inc - Airworthiness certificate: Special, Restricted (Special); Special, Special flight (Special) - Last inspection: AAIP, May 5, 2018 - Departed: PAFA, Fairbanks, AK - Destination: PAEN, Kenai, AK - Flight plan: VFR - Airport: MLY, Manley Hot Springs, runway 36, 3,400 × 60 ft, gravel - Equipment: Electronic multifunction display, Electronic flight bag or handheld device ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 40; injuries: none; airline transport, flight engineer; airplane ratings: single-engine land, multi-engine land, single-engine sea; medical: class 1, with waivers/limitations; last flight review May 3, 2018; seat: left; restraint: 4-point; flight hours: 6,500 total, 3,500 in this make and model, 4,500 as pilot in command, 62 in the last 90 days, 31 in the last 30 days - Co-pilot; age 39; injuries: none; commercial; airplane ratings: single-engine sea, single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2; last flight review April 17, 2018; seat: right; restraint: 4-point; flight hours: 300 total, 135 in the last 90 days, 66 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 210° at 10 knots - Visibility: 10 statute miles - Lowest ceiling: 4,000 ft broken - Observed at: PAFA ## Other investigations on N1822M (2) 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 ANC01LA009](https://openairdocs.org/ntsb/ANC01LA009), Oct 5, 2000: Curtis-Wright C-46F (N1822M), Port Alsworth, AK, substantial damage. Probable cause: The pilot's failure to maintain clearance during taxi. A factor associated with the accident was trees. - [NTSB ANC83FA080](https://openairdocs.org/ntsb/ANC83FA080), May 21, 1983: Curtiss-Wright C-46F (N1822M), King Salmon, AK, substantial damage ## Docket (4 files) The files NTSB released with the investigation on December 3, 2018, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=97796. 2.9 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 945 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40468822&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF - PIC Statement (item 2, .PDF, 251 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40468823&FileExtension=.PDF&FileName=PIC%20Statement-Master.PDF - FO Statement (item 3, .PDF, 163 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40468824&FileExtension=.PDF&FileName=FO%20Statement-Master.PDF - Photos (item 4, .PDF, 2 photos, 1.5 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40468825&FileExtension=.PDF&FileName=Photos-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.