# NTSB ANC21LA035: Cessna 172P, N3929, Lanai City, HI, May 1, 2021 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Class 4 · Limited · Final report - Date: May 1, 2021, 11:20 local (21:20 UTC) - Place: Lanai City, HI - Coordinates: 20.7906, -156.9499 - Nearby events: https://openairdocs.org/map.md?lat=20.7906&lon=-156.9499&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-flare/touchdown: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - Highest injury: Minor injuries - Injuries: 1 minor - Status: Completed - Report: Approved by Office Director - Investigation class: Class 4 - Basic report with no Prelim publish - NTSB office: Alaska Regional Office - Parties: FAA FSDO (OPS) - NTSB case key (mKey): 103025 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC21LA035 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/103025/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=103025 - Page: https://openairdocs.org/ntsb/ANC21LA035 ## Probable cause The solo student pilot’s failure to maintain directional control during landing in crosswind conditions, which resulted in a runway excursion and a 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 172P, 28 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=2072436), [All aircraft, 3,971 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 172P, 76 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=2072436), [All aircraft, 9,310 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Wind: crosswind](https://openairdocs.org/ntsb-findings/03034040): Environmental issues › Conditions/weather/phenomena · Effect on operation; cases with it: [Cessna 172P, 10 cases](https://openairdocs.org/ntsb-findings/03034040/cases.md?model=2072436), [All aircraft, 1,015 cases](https://openairdocs.org/ntsb-findings/03034040/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing-flare/touchdown: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Cessna 172P, 37 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=2072436), [All aircraft, 4,590 cases](https://openairdocs.org/ntsb-events/230/sequence.md) ## Analysis The solo student pilot reported that, after an uneventful cross-country flight, she arrived at her destination airport with the intent of conducting touch-and-go landings. During the landing flare the airplane encountered a gust of wind, drifted left, and the left main tire contacted the runway’s surface. Subsequently, the airplane settled onto the runway and veered to the left, she applied rudder inputs to correct for the veer to no avail. The airplane then exited the left side of the runway, the nose gear collapsed, and the airplane nosed over sustaining substantial damage to the vertical stabilizer, rudder, and right-wing lift strut. The student pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N3929](https://openairdocs.org/aircraft/N3929), registered now, S/N 17276061 (OpenAirDocs) - Reported make and model: CESSNA 172P - Registry model: [Cessna 172P](https://openairdocs.org/model/cessna-172p) (registry code 2072436) (OpenAirDocs) - Registry engine: [Lycoming O-320-D2J](https://openairdocs.org/engine/lycoming-o-320-d2j) (registry code 41595, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 17276061 - Year built: 1984 - Airframe hours: 3738.8 - Engines: LYCOMING O-320-D2J 160 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Lani Lea Sky Tours LLC - Airworthiness certificate: Standard, Normal - Last inspection: 100 hour, April 23, 2021, -33 hours before - Departed: PHNL, Honolulu, HI - Destination: Same as departure - Airport: LNY, Lanai, runway 03/21, 5,001 × 150 ft, grass/turf - Equipment: Stall warning system, ADS-B ## Flight crew As NTSB recorded them. NTSB leaves out names. - Student pilot; age 26; injuries: none; student; medical: class 3, with waivers/limitations; seat: left; restraint: 3-point; flight hours: 63 total, 63 in this make and model, 3 as pilot in command, 6 in the last 90 days, 4 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 300° at 7 knots - Visibility: 10 statute miles - Temperature: 73 °F, dew point 72 °F - Altimeter: 30.14 inHg - Observed at: PHNY - METAR: PHNY 012156Z AUTO 30007KT 10SM 23/22 A3014 RMK AO2 SLP187 T02330217 $ ## 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 20210501004839A](https://openairdocs.org/incident/20210501004839A), May 1, 2021: Cessna 172P, Lanai City, HI, Substantial damage. On may 1, 2021, just before 11:30AM HST [privacy data omitted] approached the airport at Lanai.[privacy data omitted] Approached the VOR from the west and… ## Docket (2 files) The files NTSB released with the investigation on November 12, 2021, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=103025. 1.6 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 9 pages, 1.5 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=12291860&FileExtension=pdf&FileName=6120%20dms_Redacted-Rel.pdf - Photo (source unknown) (item 2, PDF, 1 page, 133 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=12292504&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.