# NTSB LAX01LA021: Cessna 172P, N5226K, Half Moon Bay, CA, October 22, 2000 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Limited investigation · Final report - Date: October 22, 2000, 11:40 local (18:40 UTC) - Place: Half Moon Bay, CA - Coordinates: 37.513889, -122.501113 - Nearby events: https://openairdocs.org/map.md?lat=37.5139&lon=-122.5011&mi=10 - Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping) - Highest injury: Minor injuries - Injuries: 2 minor, 1 uninjured - Status: Completed, report December 6, 2002 - Report: Approved by Office Director - Parties: FAA FLT STANDARDS DIST OFC - NTSB case key (mKey): 50505 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX01LA021 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/50505/pdf - Page: https://openairdocs.org/ntsb/LAX01LA021 ## Probable cause A local windshear condition that exceeded the airplane's climb performance capability during landing approach and resulted in the runway overrun during an attempted go-around. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Overrun, go-around (vfr) - weather condition - crosswind (contributing factor) - climb - not possible, pilot in command (cause) - weather condition - windshear (cause) - On ground/water collision with object, landing - roll - object - fence ## Analysis The airplane collided with a fence during a forced landing. The pilot reported that as he initiated his approach to runway 30 he noticed strong gusty winds and low-level shear conditions. To compensate, he increased his approach airspeed and left the flaps in their retracted position. While continuing over the approach end of the runway, he encountered an area with a high sink rate. He immediately added full power to stop his descent. With full power, and with the airplane's nose about 5 degrees above the horizon, the airplane began to climb slowly. At this point, the pilot encountered a strong, gusting, right quartering headwind that lifted the right wing and resulted in a loss of altitude. In response, as the airplane touched down beyond the departure end of the runway, he closed the throttle. The airplane rolled through a fence before coming to a stop. Winds at the closest weather reporting station San Francisco International Airport (SFO), were 360 at 18 knots gusting to 22 knots. ## Factual narrative On October 22, 2000, at 1140 hours Pacific daylight time, a Cessna 172P, N5226K, overran the runway during landing, and collided with a fence at the Half Moon Bay Airport, Half Moon Bay, California. The airplane sustained substantial damage, and the certificated commercial pilot and one of his two passengers received minor injuries. The second passenger was not injured. The airplane owner, d.b.a. Coast Flight, operated the sightseeing flight under the provisions of 14 CFR Part 91. The local flight had originated from the Half Moon Bay airport about 1030. Visual meteorological conditions prevailed at the time, and no flight plan was filed. The pilot reported that as he initiated his approach to runway 30 he noticed strong gusty winds and low-level shear conditions. To compensate, he increased his approach airspeed and left the flaps in their retracted position. While continuing over the approach end of the runway, he encountered an area with a high sink rate. He immediately added full power to stop his descent. With full power, and with the airplane's nose about 5 degrees above the horizon, the airplane began to climb slowly. At this point, the pilot encountered a strong, gusting, right quartering headwind that lifted the right wing and resulted in a loss of altitude. In response, as the airplane touched down beyond the departure end of the runway, the closed the throttle. The airplane rolled through a fence before coming to a stop. Winds at the closest weather reporting station San Francisco International Airport (SFO), were 360 at 18 knots gusting to 22 knots. ## Aircraft - Registration: [N5226K](https://openairdocs.org/deregistered/N5226K-2002-09-13), registration cancelled 2002-09-13, S/N 17274019, built 1980 (OpenAirDocs) - Reported make and model: Cessna 172P - Registry model: [Cessna 172P](https://openairdocs.org/model/cessna-172p) (registry code 2072436) (OpenAirDocs) - Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 17274019 - Airframe hours: 2811 - Engines: Lycoming O-360-AHM 180 horsepower reciprocating - Damage: Substantial damage - Flight: Business, Part 91 - Registered owner: Christopher Lee Gideon - Airworthiness certificate: Standard, Normal - Last inspection: Annual, January 9, 2000, 74 hours before - Departed: HAF, HALF MOON BAY, CA - Destination: HAF, HALF MOON BAY, CA - Airport: KHAF, Half Moon Bay, runway 30, 4,237 × 150 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 42; injuries: minor; flight instructor, commercial; airplane ratings: single-engine sea, single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; last flight review December 12, 1999; seat: left; flight hours: 933 total, 600 in this make and model, 801 as pilot in command, 56 in the last 90 days, 19 in the last 30 days, 2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 20° at 19 knots, gusting 24 - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 66 °F, dew point 34 °F - Altimeter: 29.95 inHg - Observed at: SFO ## 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 20001022024839A](https://openairdocs.org/incident/20001022024839A), Oct 22, 2000: Cessna 172P, Half Moon Bay, CA, Substantial damage. (-23) On October 22, 2000, Cessna CE-172-P, N5226K, conducting a sight seeing tour within 25 miles of Half Moon Bay attempted to land at Half Moon Bay. The PIC… 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.