# NTSB ANC25LA029: Cessna 172N, N733KV, Manley Hot Springs, AK, March 29, 2025 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Limited · Final report - Date: March 29, 2025, 09:10 local (17:10 UTC) - Place: Manley Hot Springs, AK - Coordinates: 64.997087, -150.64332 - Nearby events: https://openairdocs.org/map.md?lat=64.9971&lon=-150.6433&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed - Report: Approved by Office Director - Investigation class: Class 4 - Basic report with no Prelim publish - NTSB office: Alaska Regional Office - Parties: FAA - NTSB case key (mKey): 199938 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC25LA029 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/199938/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=199938 - Page: https://openairdocs.org/ntsb/ANC25LA029 ## Probable cause The student pilot’s failure to maintain directional control during the landing roll on a snow and ice-covered runway, which resulted in a runway excursion and subsequent nose over. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Performance/control parameters: directional control](https://openairdocs.org/ntsb-findings/01062020): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Cessna 172N, 82 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=2072434), [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Cessna 172N, 150 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=2072434), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Airport facilities/design: runway/landing area condition](https://openairdocs.org/ntsb-findings/03017035): Environmental issues › Operating environment · Contributed to outcome; cases with it: [Cessna 172N, 1 case](https://openairdocs.org/ntsb-findings/03017035/cases.md?model=2072434), [All aircraft, 61 cases](https://openairdocs.org/ntsb-findings/03017035/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Cessna 172N, 81 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=2072434), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) ## Analysis The student pilot reported that, during the landing roll on a snow and ice-covered runway, he lost directional control of the airplane. The airplane departed the left side of the runway, nosed over, and came to rest inverted which resulted in substantial damage to both wings. The student pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N733KV](https://openairdocs.org/aircraft/N733KV), registered now, S/N 17268360, built 1976 (OpenAirDocs) - Reported make and model: CESSNA 172N - Registry model: [Cessna 172N](https://openairdocs.org/model/cessna-172n) (registry code 2072434) (OpenAirDocs) - Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 17268360 - Year built: 1976 - Airframe hours: 8667.3 - Engines: Lycoming O-320-D2J 160 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Operator: Proflite of Alaska, LLC - Registered owner: Proflite of Alaska, LLC - Airworthiness certificate: Standard, Normal - Last inspection: Annual, March 6, 2025, 50 hours before - Departed: FAI, Fairbanks, AK - Destination: MLY, Manley Hot Springs, AK - Flight plan: VFR - Airport: MLY, Manley Hot Springs, runway 18/36, 3,400 × 60 ft, snow - Equipment: ADS-B ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 53; injuries: none; student; medical: class 3, with waivers/limitations; seat: left; restraint: 3-point; flight hours: 78 total, 20 in this make and model, 1 as pilot in command, 13 in the last 90 days, 7 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: calm - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: -8 °F, dew point -15 °F - Altimeter: 30.20 inHg - Observed at: PATA, 38 nm away - METAR: PATA 291652Z 00000KT 10SM CLR M22/M26 A3020 RMK AO2 SLP235 T12221256 $ ## 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 20250329004149A](https://openairdocs.org/incident/20250329004149A), Mar 29, 2025: Cessna 172N, Manley Hot Spri, AK, Substantial damage. During landing, and immediately upon touchdown, aircraft began to drift left on runway. Pilot was unable to counteract the drift with either flight control… ## Docket (3 files) The files NTSB released with the investigation on June 13, 2025, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=199938. 3.6 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 10 pages, 1.7 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=18590745&FileExtension=pdf&FileName=6120%20ANC24LA029_Redacted-Rel.pdf - Pilot's statement (item 2, PDF, 2 pages, 1.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=18570554&FileExtension=pdf&FileName=DLoweStmt032925-Rel.pdf - Photos (item 3, PDF, 3 pages, 561 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=18591881&FileExtension=pdf&FileName=Investigative%20Photographs-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.