# NTSB CHI08CA130: Cessna 150, N22997, Pulaski, WI, May 14, 2008 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: May 14, 2008, 18:00 local (23:00 UTC) - Place: Pulaski, WI - Coordinates: 44.641109, -88.215278 - Nearby events: https://openairdocs.org/map.md?lat=44.6411&lon=-88.2153&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report July 30, 2008 - Report: Approved by Office Director - Parties: Milwaukee, WI - NTSB case key (mKey): 68262 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI08CA130 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/68262/pdf - Page: https://openairdocs.org/ntsb/CHI08CA130 ## Probable cause The student pilot's failure to take remedial action in response to a porpoise/pilot-induced oscillation during landing. Factors were the porpoise, the pilot's lack of experience, and the separation of the nose landing gear. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Action: lack of action](https://openairdocs.org/ntsb-findings/02041030): Personnel issues › Action/decision · Pilot (probable cause); cases with it: [Cessna 150H, 1 case](https://openairdocs.org/ntsb-findings/02041030/cases.md?model=2071818), [All aircraft, 792 cases](https://openairdocs.org/ntsb-findings/02041030/cases.md) - [Experience/qualifications: total experience](https://openairdocs.org/ntsb-findings/02031015): Personnel issues › Experience/knowledge · Pilot (probable cause); cases with it: [Cessna 150H, 1 case](https://openairdocs.org/ntsb-findings/02031015/cases.md?model=2071818), [All aircraft, 126 cases](https://openairdocs.org/ntsb-findings/02031015/cases.md) - [Landing gear system: nose/tail landing gear](https://openairdocs.org/ntsb-findings/01023220): Aircraft › Aircraft systems · Failure (probable cause); cases with it: [Cessna 150H, 1 case](https://openairdocs.org/ntsb-findings/01023220/cases.md?model=2071818), [All aircraft, 185 cases](https://openairdocs.org/ntsb-findings/01023220/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Cessna 150H, 11 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=2071818), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Cessna 150H, 27 cases](https://openairdocs.org/ntsb-events/470/sequence.md?model=2071818), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) - [Landing: Nose over/nose down](https://openairdocs.org/ntsb-events/096); cases with it: [Cessna 150H, 7 cases](https://openairdocs.org/ntsb-events/096/sequence.md?model=2071818), [All aircraft, 2,287 cases](https://openairdocs.org/ntsb-events/096/sequence.md) ## Analysis The student pilot related that he was on his first solo landing when the airplane began to porpoise. He said he did not have the experience or knowledge to correct the porpoise. The porpoise oscillation continued until the nose landing gear collapsed, and the airplane nosed over, sustaining substantial damage. ## Factual narrative The airplane sustained substantial damage when it nosed over during landing. The student pilot confirmed that during his first solo landing the airplane began to porpoise. He confirmed that he did not have the experience or knowledge as to how to recover from this condition. The airplane continued to porpoise and the nose landing gear separated from the airplane and it nosed over. ## Aircraft - Registration: [N22997](https://openairdocs.org/deregistered/N22997-2009-04-20), registration cancelled 2009-04-20, S/N 15068669, built 1968 (OpenAirDocs) - Reported make and model: Cessna 150 - Registry model: [Cessna 150H](https://openairdocs.org/model/cessna-150h) (registry code 2071818) (OpenAirDocs) - Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 15068669 - Engines: Continental O-200 100 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Registered owner: Blue Skies Aviation of Wisconsin, Inc. - Airworthiness certificate: Standard, Normal - Departed: 92C, Pulaski, WI ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 48; injuries: none; student; medical: class 3, without waivers/limitations; seat: left; flight hours: 10 total, 10 in this make and model ## Weather - Conditions: Visual (VMC), Day ## 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 20080514838789A](https://openairdocs.org/incident/20080514838789A), May 14, 2008: Cessna 150H, Pulaski, WI, Substantial damage. (-23) The student pilot on his first solo flight experienced the aircraft porpoising down the runway as he was landing. The pilot did not possess the knowledge… ## Other investigations on N22997 (1) 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 MKC89LA051](https://openairdocs.org/ntsb/MKC89LA051), Jan 14, 1989: Cessna 150 (N22997), Clarion, IA, substantial damage. Probable cause: FAILURE OF THE PILOT TO PROPERLY USE THE CARBURETOR HEAT DURING ICING CONDITIONS RESULTING IN CARBURETOR ICE FORMATION AND SUBSEQUENT LOSS OF ENGINE POWER. 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.