# NTSB ANC22LA058: Piper PA-18-150, N14LD, Port Alsworth, AK, July 15, 2022 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Limited · Final report - Date: July 14, 2022, 16:25 local (Jul 15, 2022, 00:25 UTC) - Place: Port Alsworth, AK - Coordinates: 59.913512, -154.2461 - Nearby events: https://openairdocs.org/map.md?lat=59.9135&lon=-154.2461&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-landing roll: Nose over/nose down](https://openairdocs.org/ntsb-events/096) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed - Report: Approved by Office Director - Investigation class: Class 4 - Basic report with no Prelim publish - NTSB office: Alaska Regional Office - Parties: Federal Aviation Administration - NTSB case key (mKey): 105526 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC22LA058 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/105526/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=105526 - Page: https://openairdocs.org/ntsb/ANC22LA058 ## Probable cause The pilot’s excessive use of brakes which resulted in a nose-over. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Landing gear system: brake](https://openairdocs.org/ntsb-findings/01023242): Aircraft › Aircraft systems · Incorrect use/operation (probable cause); cases with it: [Piper PA-18-150, 10 cases](https://openairdocs.org/ntsb-findings/01023242/cases.md?model=7101828), [All aircraft, 297 cases](https://openairdocs.org/ntsb-findings/01023242/cases.md) - [Performance/control parameters: surface speed/braking](https://openairdocs.org/ntsb-findings/01062045): Aircraft › Aircraft oper/perf/capability · Incorrect use/operation (probable cause); cases with it: [Piper PA-18-150, 14 cases](https://openairdocs.org/ntsb-findings/01062045/cases.md?model=7101828), [All aircraft, 238 cases](https://openairdocs.org/ntsb-findings/01062045/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: [Piper PA-18-150, 20 cases](https://openairdocs.org/ntsb-findings/02063015/cases.md?model=7101828), [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. - [Landing-landing roll: Nose over/nose down](https://openairdocs.org/ntsb-events/096) (defining event); cases with it: [Piper PA-18-150, 83 cases](https://openairdocs.org/ntsb-events/096/sequence.md?model=7101828), [All aircraft, 2,287 cases](https://openairdocs.org/ntsb-events/096/sequence.md) ## Analysis The pilot reported that, after evaluating an off-airport landing site he proceeded with an approach to landing. During the landing rollout, excessive braking was applied and the airplane subsequently nosed-over which resulted in substantial damage to the right wing, right lift strut, vertical stabilizer, and rudder. The pilot reported that there were no preaccident mechanical malfunctions or anomalies with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N14LD](https://openairdocs.org/aircraft/N14LD), registered now, S/N 18-4450, built 1955 (OpenAirDocs) - Reported make and model: PIPER PA-18-150 - Registry model: [Piper PA-18-150](https://openairdocs.org/model/piper-pa-18-150) (registry code 7101828) (OpenAirDocs) - Registry engine: [Lycoming O-320 series](https://openairdocs.org/engine/lycoming-o-320-series) (registry code 42389, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 18-4450 - Year built: 1955 - Engines: Lycoming O-320 160 horsepower reciprocating - Damage: Substantial damage - Flight: Business, Part 135 - Operator: Copper Mountain Aviation LLC - Registered owner: Copper Mountain Aviation LLC - Airworthiness certificate: Standard, Normal - Last inspection: 100 hour, May 29, 2022 - Destination: Same as departure - Flight plan: Company VFR - Airport: PVT, Private ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 43; injuries: none; commercial, airline transport, private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, without waivers/limitations; seat: front; restraint: 4-point; flight hours: 15,000 total, 1,500 in this make and model, 14,700 as pilot in command, 280 in the last 90 days, 100 in the last 30 days, 6 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 250° at 7 knots - Visibility: 30 statute miles - Lowest ceiling: 8,000 ft overcast - Temperature: 66 °F, dew point 54 °F - Altimeter: 29.83 inHg - Observed at: PALJ, 1 nm away - METAR: PALJ 150050Z 25007KT 30SM FEW030 OVC080 19/12 A2983 RMK EST PASS OPEN NOSPECI ## Docket (2 files) The files NTSB released with the investigation on November 7, 2022, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=105526. 5.4 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 9 pages, 4.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=14266217&FileExtension=pdf&FileName=6120_Redacted-Rel.pdf - Photos (source unknown) (item 2, PDF, 2 pages, 802 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=14267252&FileExtension=pdf&FileName=Photo%20Array-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.