# NTSB ANC06CA077: Christen Industries A-1, N9622V, Takotna, AK, June 19, 2006 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: June 19, 2006, 10:00 local (18:00 UTC) - Place: Takotna, AK - Coordinates: 62.598609, -157.163894 - Nearby events: https://openairdocs.org/map.md?lat=62.5986&lon=-157.1639&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report November 29, 2006 - Report: Approved by Office Director - NTSB office: Alaska Regional Office - NTSB case key (mKey): 64439 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC06CA077 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/64439/pdf - Page: https://openairdocs.org/ntsb/ANC06CA077 ## Probable cause The pilot's excessive use of brakes during the landing roll. A factor associated with the accident was soft terrain. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Nose over, landing - roll - terrain condition - soft (contributing factor) - brakes(normal) - excessive, pilot in command (cause) ## Analysis The private certificated pilot reported that he was landing his tundra tire-equipped airplane at an off-airport site during a Title 14, CFR Part 91 local flight. He said during a telephone conversation with the NTSB investigator-in-charge that during the landing roll on the soft and wet surface, he applied heavy braking. The airplane subsequently nosed over and sustained substantial damage to the vertical stabilizer and one left wing strut. The pilot indicated that there were no preaccident mechanical problems with the airplane, and that he just applied excessive braking during the landing roll. ## Factual narrative The private certificated pilot reported he was landing his tundra tire-equipped airplane at an off-airport site during a Title 14, CFR Part 91 local flight. He said during a telephone conversation with the NTSB investigator-in-charge that during the landing roll on the soft and wet surface, he applied heavy braking. The airplane subsequently nosed over and sustained substantial damage to the vertical stabilizer and one left wing strut. The pilot indicated that there were no preaccident mechanical problems with the airplane, and that he just applied excessive braking during the landing roll. ## Aircraft - Registration: [N9622V](https://openairdocs.org/aircraft/N9622V), registered now, S/N 1154, built 1990 (OpenAirDocs) - Reported make and model: Christen Industries A-1 - Registry model: [Christen Industries A-1](https://openairdocs.org/model/christen-industries-a-1) (registry code 221020X) (OpenAirDocs) - Registry engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 1154 - Airframe hours: 1385.2 - Engines: Lycoming IO-360 180 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Nicholas S. Van Wyck - Airworthiness certificate: Standard, Normal - Last inspection: Annual, May 1, 2006, 28 hours before - Departed: 99AK, Moore Creek, AK - Destination: Takotna, AK ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 41; injuries: none; private; medical: class 3, without waivers/limitations; last flight review May 1, 2006; flight hours: 600 total, 550 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 20060619012629A](https://openairdocs.org/incident/20060619012629A), Jun 19, 2006: Chris A1, Mcgrath, AK, Substantial damage. (-23) The airplane nosed over while landing at a remote mining strip. (-23 amendment) according to the pilot, he was attempting a wheel landing on an airstrip… ## Other investigations on N9622V (2) 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 ANC22LA072](https://openairdocs.org/ntsb/ANC22LA072), Sep 1, 2022: Christen Industries A-1 (N9622V), Point MacKenzie, AK, substantial damage. Probable cause: The pilot’s improper monitoring and failure to maintain airspeed during a critical phase of flight, which resulted in an exceedance of the airplane’s critical angle of attack, an aerodynamic stall,… - [NTSB ANC95LA069](https://openairdocs.org/ntsb/ANC95LA069), Jun 11, 1995: Christen Industries A-1 (N9622V), Tyonek, AK, substantial damage. Probable cause: THE PILOT'S SELECTION OF AN UNSUITABLE LANDING SITE. A FACTOR ASSOCIATED WITH THE ACCIDENT IS THE ROUGH AND UNEVEN SANDBAR. 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.