# NTSB ANC25LA026: Aeronca 7CCM, N2527B, Kenai, AK, March 20, 2025 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 3 · Limited · Final report - Date: March 20, 2025, 14:00 local (22:00 UTC) - Place: Kenai, AK · Golf course service road - Coordinates: 60.559925, -151.16719 - Nearby events: https://openairdocs.org/map.md?lat=60.5599&lon=-151.1672&mi=10 - Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping) - Defining event: [Enroute: Fuel related](https://openairdocs.org/ntsb-events/190) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report April 29, 2026 - Report: Approved by Office Director - Investigation class: Class 3 - NTSB office: Alaska Regional Office - Parties: FAA - SAIBs cited in the narratives: [SAIB CE-09-35](https://openairdocs.org/saib/CE-09-35) (OpenAirDocs) - NTSB case key (mKey): 199891 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC25LA026 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/199891/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=199891 - Page: https://openairdocs.org/ntsb/ANC25LA026 ## Probable cause A total loss of engine power due to carburetor icing as a result of the pilot’s inadequate use of carburetor heat. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Temp/humidity/pressure: conducive to carburetor icing](https://openairdocs.org/ntsb-findings/03031030): Environmental issues › Conditions/weather/phenomena · Response/compensation (probable cause); cases with it: [Aeronca 7CCM, 1 case](https://openairdocs.org/ntsb-findings/03031030/cases.md?model=2110110), [All aircraft, 435 cases](https://openairdocs.org/ntsb-findings/03031030/cases.md) - [Use of equip/info: use of equip/system](https://openairdocs.org/ntsb-findings/02063015): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Aeronca 7CCM, 1 case](https://openairdocs.org/ntsb-findings/02063015/cases.md?model=2110110), [All aircraft, 1,391 cases](https://openairdocs.org/ntsb-findings/02063015/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Enroute: Fuel related](https://openairdocs.org/ntsb-events/190) (defining event); cases with it: [Aeronca 7CCM, 1 case](https://openairdocs.org/ntsb-events/190/sequence.md?model=2110110), [All aircraft, 361 cases](https://openairdocs.org/ntsb-events/190/sequence.md) ## Analysis The pilot reported that, during cruise flight about 1,500 ft mean sea level, the engine lost total power. The pilot initiated a forced landing to an abandoned access road. During the landing, the airplane collided with trees, which resulted in substantial damage to the left wing. The weather conditions near the accident location about the time of the accident were conducive to carburetor ice at glide or cruise power. The pilot had been flying in the area and had completed her flight review earlier in the day with no carburetor icing issues. Although she had been using carburetor heat throughout the day, she could not remember if the carburetor heat was in the On or Off position when the engine lost power. The carburetor heat control was found in the Off position after the accident. The pilot does not remember if the carburetor heat was in the on or off position. Postaccident examination of the engine revealed no evidence of any mechanical malfunction or failure that would have precluded normal operation. Based on the results of the engine examination and the postaccident position of the carburetor heat control, the loss of engine power was likely due to carburetor icing that had accrued due to an inadequate application of carburetor heat. ## Factual narrative On March 20, 2025, about 1400 Alaska daylight time, an Aeronca 7CCM airplane, N2527B, was substantially damaged when it was involved in an accident near Kenai, Alaska. The pilot was not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot reported that, during cruise flight at about 1,500 ft mean sea level, the engine lost total power. The pilot initiated a forced landing to an abandoned access road. During the landing the airplane collided with trees, which resulted in substantial damage to the left wing. Postaccident examination of the engine found fuel that was blue in color, consistent with aviation fuel. No water appeared to be present. Both magnetos and all of the sparkplugs were secure. There was no apparent damage to any wiring. The engine contained oil that was black in color and of thick viscosity. The engine primer was used twice and the engine started immediately and ran smoothly. The engine oil pressure operated in the green range on the instrument panel. The engine produced full power and operated on both the left and right magnetos individually with no hesitation. An engine run up check was performed and no abnormality was observed. Review of accident site photographs taken by FAA inspectors showed what appeared to be the carburetor heat control in the Off position. After recovery of the wreckage the carburetor heat control was found to be full forward in the Off position. There was no evidence of any mechanical malfunction or anomaly that would have precluded normal operation of the engine, fuel system, or propellers. The pilot had been flying in the area and had completed her flight review with no carburetor icing issues. She reported that she had been using carburetor heat throughout the day but she could not remember if the carburetor heat was in the On or Off position when the engine lost power. The reported temperature from a location about 2 miles from the accident site was 42.8°F, with a dew point of 24.8°F. A review of FAA Special Airworthiness Information Bulletin CE-09-35, Carburetor Icing and Prevention, shows the weather conditions were conducive to carburetor ice at glide or cruise power. ## Aircraft - Registration: [N2527B](https://openairdocs.org/aircraft/N2527B), registered now, S/N 48-507 (OpenAirDocs) - Reported make and model: AERONCA 7CCM - Registry model: [Aeronca 7CCM](https://openairdocs.org/model/aeronca-7ccm) (registry code 2110110) (OpenAirDocs) - Registry engine: [Continental C90 series](https://openairdocs.org/engine/continental-c90-series) (registry code 17009, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 48-507 - Year built: 1946 - Engines: Continental C-90-12 90 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Standard, Normal - Last inspection: Annual, July 31, 2024 - Departed: PASX, Soldotna, AK - Destination: PVT, Kenai, AK - Airport: ENA - Equipment: Handheld GPS ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 59; injuries: none; private; airplane ratings: single-engine land, single-engine sea; instrument ratings: airplane; medical: basicmed, without waivers/limitations; last flight review March 20, 2025; seat: front; flight hours: 1,011.2 total, 658 in this make and model, 26 in the last 90 days, 20 in the last 30 days, 3 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 80° at 8 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 43 °F, dew point 25 °F - Altimeter: 29.23 inHg - Icing: Unknown - Turbulence: Unknown - Observed at: PAEN, 2 nm away - METAR: PAEN 202153Z 08008KT 10SM CLR 06/M04 A2923 RMK AO2 SLP901 T00561044 ## 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 20250320005199A](https://openairdocs.org/incident/20250320005199A), Mar 20, 2025: Aeronca 7CCM, Kenai, AK, Substantial damage. From pilot's statement: "Departed pasx with 1/2 tank nose fuel. Turned off right tank transfer. Departed, just had received transition clearance from Kenai… ## Docket (4 files) The files NTSB released with the investigation on April 22, 2026, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=199891. 8.5 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 8 pages, 7.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=19042071&FileExtension=pdf&FileName=ANC25LA026%206120_Redacted-Rel.pdf - Engine examination (item 2, PDF, 8 pages, 634 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=19042405&FileExtension=pdf&FileName=ANC25LA026%20Engine%20exam-Rel.pdf - Release of aircraft wreckage, NTSB form 6120.15 (item 3, PDF, 1 page, 15 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=19042123&FileExtension=pdf&FileName=ANC25LA026%20Wreckage%20Release%20_Redacted-Rel.pdf - Investigative photographs (item 4, PDF, 3 pages, 617 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=19041957&FileExtension=pdf&FileName=ANC25LA026%20Photos-Rel.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.