# NTSB ANC95LA013: Cessna 207, N9829M, Akiachak, AK, November 18, 1994 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: November 18, 1994, 17:30 local (21:30 UTC) - Place: Akiachak, AK - Coordinates: 60.899219, -161.420455 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=60.8992&lon=-161.4205&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 3 uninjured - Status: Completed, report June 29, 1995 - Report: Approved by Office Director - NTSB office: Alaska Regional Office - NTSB case key (mKey): 2612 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC95LA013 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/2612/pdf - Page: https://openairdocs.org/ntsb/ANC95LA013 ## Probable cause THE PILOT'S INADEQUATE COMPENSATION FOR CROSSWIND. CROSSWIND CONDITIONS AND AN ICY RUNWAY SURFACE WERE FACTORS IN THE ACCIDENT. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of control - on ground/water, landing - roll - airport facilities,runway/landing area condition - icy (contributing factor) - weather condition - crosswind (contributing factor) - compensation for wind conditions - inadequate, pilot in command (cause) - On ground/water encounter with terrain/water, landing - roll - terrain condition - snowbank (contributing factor) ## Analysis THE PILOT WAS LANDING A WHEEL EQUIPPED AIRPLANE AT A REMOTE AIRPORT AS PART OF A SCHEDULED CHARTER FLIGHT WITH TWO PASSENGERS. THE PILOT HAD LANDED AT THE AIRPORT EARLIER IN THE DAY AND WAS AWARE THAT THE RUNWAY SURFACE WAS COVERED WITH SNOW AND ICE. WHEN THE AIRPLANE TOUCHED DOWN, THE AIRPLANE WEATHERVANED TO THE LEFT INTO AN 18 KNOT CROSSWIND. THE PILOT'S INPUT OF RUDDER AND NOSE WHEEL STEERING HAD NO EFFECT. THE AIRPLANE SLID OFF THE DEPARTURE END OF THE RUNWAY AND DOWN AN EMBANKMENT INTO A SNOW BANK. ## Factual narrative On November 18, 1994, at 1730 Alaska standard time, a wheel equipped Cessna model 207 airplane, N9829M, operated by Ryan Air Service, Inc., overran the end of runway 29 at Akiakchak, Alaska and collided with terrain. The commercial certificated pilot-in-command and his two revenue passengers, the sole occupants, were not injured, and the airplane sustained substantial damage. The 14 CFR Part 135 scheduled flight last departed Akiak, Alaska at 1722 and the destination was Akiakchak. The pilot reported that visual meteorological conditions prevailed, and the flight was on a company VFR flight plan. On the morning of November 22, 1994, the NTSB investigator- in-charge interviewed the pilot at the NTSB's Northwest Field Office. The pilot said that he had been into the airport earlier in the day and knew that the runway was snow covered and very icy. The two flights were nearly identical with the exception being that the earlier approach and landing were performed in a nearly calm wind. On the flight in question, he made the approach/landing with the wind sock indicating a direct crosswind from the left of about 18 knots. The plane touched down within 75 feet of the approach end of the runway with full flaps and the stall horn blaring. Shortly thereafter, the airplane began to weathervane to the left into the wind. The input of rudder and nose wheel steering had no noticeable affect in aligning the nose of the airplane with the centerline of the runway. The airplane continued off the departure end of the runway and down a 20 degree embankment with resultant damage to the left horizontal stabilizer and elevator. The airport/facility directory indicated in part: "Airport unattended - Caution; runway condition not monitored, recommend visual inspection prior to using." ## Aircraft - Registration: [N9829M](https://openairdocs.org/aircraft/N9829M), registered now, S/N 20700741, built 1981 (OpenAirDocs) - Reported make and model: CESSNA 207 - Registry model: [Cessna 207A](https://openairdocs.org/model/cessna-207a) (registry code 2073605) (OpenAirDocs) - Registry engine: [Continental IO-520-F](https://openairdocs.org/engine/continental-io-520-f) (registry code 17237, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 20700741 - Airframe hours: 5661 - Engines: CONTINENTAL IO-520-F 300 horsepower reciprocating - Damage: Substantial damage - Flight: Part 135 - Registered owner: Ryan Air Service Inc. - Airworthiness certificate: Standard, Normal - Last inspection: AAIP, November 15, 1994, 5 hours before - Departed: AKI, AKIAK, AK - Flight plan: Company VFR - Airport: Z13, Akiakchak, runway 29, 1,600 × ft, gravel ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 24; flight instructor, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 1,496 total, 175 in this make and model, 1,280 as pilot in command, 220 in the last 90 days, 90 in the last 30 days, 3 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 200° at 18 knots - Visibility: 15 statute miles - Lowest ceiling: none - Temperature: 18 °F, dew point 16 °F ## 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 19941118040759A](https://openairdocs.org/incident/19941118040759A), Nov 18, 1994: Cessna 207, Akiachak, AK, Substantial damage. Overshot icy runway on crosswind landing. Weather vaned into wind and slid sideways off end runway. ## Other investigations on N9829M (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 ANC88LA106](https://openairdocs.org/ntsb/ANC88LA106), Aug 8, 1988: Cessna 207A (N9829M), Cooper Landing, AK, substantial damage 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.