# NTSB ANC06TA002: Aviat A-1B, N792, Fairbanks, AK, October 6, 2005 - Type: NTSB accident investigation - Classification: Accident · No injuries · Final report - Date: October 6, 2005, 11:30 local (19:30 UTC) - Place: Fairbanks, AK - Coordinates: 64.708335, -148.300003 - Nearby events: https://openairdocs.org/map.md?lat=64.7083&lon=-148.3000&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report April 25, 2006 - Report: Approved by Office Director - NTSB office: Alaska Regional Office - Parties: Fairbanks FSDO-01 - NTSB case key (mKey): 62622 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC06TA002 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/62622/pdf - Page: https://openairdocs.org/ntsb/ANC06TA002 ## Probable cause The flight instructor's inadequate supervision of the dual student during the landing roll, which resulted in the dual student applying the brakes excessively, and the airplane nosing over. A factor associated with the accident was the excessive braking by the dual student. ## 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 - brakes(normal) - excessive, dual student (contributing factor) - supervision - inadequate, pilot in command(cfi) (cause) - Nose over, landing - roll ## Analysis The certificated flight instructor was giving landing instruction to a pilot-rated dual student during a public use flight at an off airport landing site. During the landing roll, the student applied the brakes excessively, and the airplane nosed over. The flight instructor indicated he felt his expectations and the outcome of the maneuver had not been properly communicated to the student, and that prior to the accident, there were no known mechanical problems with the airplane. The airplane sustained substantial damage to the vertical stabilizer, wings, lift-struts, and windshield. ## Factual narrative On October 6, 2005, about 1130 Alaska daylight time, a tundra tire-equipped Aviat A-1B airplane, N792, sustained substantial damage when it nosed over during the landing roll at an off airport landing site, about 13 miles southwest of Fairbanks, Alaska. The airplane was being operated as a visual flight rules (VFR) public use instructional flight by the U.S. National Park Service, Fairbanks, when the accident occurred. The certificated flight instructor and dual student were not injured. Visual meteorological conditions prevailed, and company flight following procedures were in effect. During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC) on October 9, the flight instructor, who was an employee of the National Park Service, said the Park Service was conducting a pilot training seminar where a mentor pilot (instructor) familiarizes other qualified pilots (dual student) with Park Service flight procedures, such as aerial animal surveys. He said he and the student performed the maneuvers discussed during the pre-mission briefing, and while returning to the airport, he asked the student if he wanted to do any other maneuvers. The student requested to practice off airport landings at the site where the accident occurred. The flight instructor said he felt his expectations and the outcome of the maneuver had not been properly communicated to the student, and that during the landing roll the student applied the brakes excessively, and the airplane nosed over. The instructor said prior to the accident there were no known mechanical anomalies with the airplane. The airplane sustained substantial damage to the vertical stabilizer, wings, lift-struts, and windshield. ## Aircraft - Registration: N792 (not matched to a registry record) - Reported make and model: Aviat A-1B - Category: Airplane - Serial number: 2266 - Airframe hours: 367 - Engines: Lycoming O-360 180 horsepower reciprocating - Damage: Substantial damage - Flight: Public aircraft - federal, Part 91 - Operator: U.S. National Park Service - Registered owner: U. S. department of the Interior - Airworthiness certificate: Standard, Normal - Last inspection: 100 hour, April 1, 2005, 98 hours before - Departed: FAI, Fairbanks, AK - Destination: Fairbanks, AK - Flight plan: Company VFR ## Flight crew As NTSB recorded them. NTSB leaves out names. - Flight instructor; age 30; injuries: none; airline transport, flight instructor, commercial; airplane ratings: single-engine land, multi-engine land, single-engine sea; instrument ratings: airplane; medical: class 2, without waivers/limitations; seat: rear; flight hours: 5,500 total - Student pilot; age 38; injuries: none; flight instructor, commercial; airplane ratings: single-engine sea, single-engine land; instrument ratings: airplane; medical: class 2, without waivers/limitations; seat: front; flight hours: 2,000 total ## Weather - Conditions: Visual (VMC), Day - Wind: 360° at 8 knots - Visibility: 10 statute miles - Lowest ceiling: 8,000 ft overcast - Temperature: 39 °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 20051006024749A](https://openairdocs.org/incident/20051006024749A), Oct 6, 2005: Aviat A1B, Fairbanks, AK, Substantial damage. (-23) During a resource training clinic a nps pilot landed on an unimproved air strip and over nosed the aircraft (on it's back). Damage was substantial. A… 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.