# NTSB ANC01LA060: de Havilland DHC-2, N150PL, Alexander, AK, May 30, 2001 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: May 30, 2001, 11:55 local (19:55 UTC) - Place: Alexander, AK - Coordinates: 55.919406, -159.489669 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=55.9194&lon=-159.4897&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report February 20, 2002 - Report: Approved by Office Director - NTSB office: Alaska Regional Office - Parties: FAA-AL-ANC FSDO 03 - NTSB case key (mKey): 52388 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC01LA060 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/52388/pdf - Page: https://openairdocs.org/ntsb/ANC01LA060 ## Probable cause The instructor pilot's inadequate supervision of the flight. Factors in the accident were the dual student's selection of unsuitable terrain for landing, and the presence of a sand bar in the landing area. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - On ground/water encounter with terrain/water, landing - roll - unsuitable terrain or takeoff/landing/taxi area - selected, dual student (contributing factor) - terrain condition - sand bar (contributing factor) - supervision - inadequate, pilot in command(cfi) (cause) - On ground/water collision with object, landing - roll - object - tree(s) ## Analysis The commercial certificated pilot/flight instructor was conducting a local area instructional flight with the private certificated pilot/dual student in a float-equipped airplane. The airplane was owned by the student, and the flight was the second day of instruction to gain additional experience operating on lakes and rivers in Alaska. After departure on the training flight, the student proceeded to land on a creek. After touchdown on the creek in a northbound direction, the airplane was decelerating with the water rudders in the up position. The airplane suddenly veered to the right, and the floats collided with the creek bank. The left wing of the airplane collided with trees along the bank, and the propeller struck the bank. The student reported he thought the right float struck an unseen sand bar. The flight instructor reported that he was providing dual instruction to the already certificated student pilot, and did not know the reason why the airplane veered to the right. ## Factual narrative On May 30, 2001, about 1155 Alaska daylight time, a float-equipped de Havilland DHC-2 airplane, N150PL, sustained substantial damage during a landing on Alexander Creek, about 1.5 miles north-northeast of Alexander, Alaska. The airplane was being operated as a visual flight rules (VFR) local area instructional flight when the accident occurred. The airplane was owned and operated by the private certificated pilot/dual student. The commercial certificated pilot/flight instructor, and the student, were not injured. Visual meteorological conditions prevailed. The flight originated at the Lake Hood Seaplane Base, Anchorage, Alaska, about 1115. During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), on May 31, 2001, the owner/student pilot reported the flight was the second day of instruction, conducted to gain additional experience operating on lakes and rivers in Alaska. After departure from Lake Hood, the student did some aerial maneuvering, and then proceeded to land on Alexander Creek. After touchdown on the creek in a northbound direction, the airplane was decelerating with the water rudders in the up position. The airplane suddenly veered to the right, and the floats collided with the creek bank. The left wing of the airplane collided with trees along the bank, and the propeller struck the bank. The student reported he thought the right float struck an unseen sand bar. In a telephone conversation with the flight instructor on May 31st, he reported that he was providing dual instruction to the already certificated student pilot. The instructor said the touchdown on the creek was normal until the airplane veered to the right. He said he did not know the reason why the airplane veered to the right. ## Aircraft - Registration: N150PL (not matched to a registry record) - Reported make and model: de Havilland DHC-2 - Category: Airplane - Serial number: 1540 - Airframe hours: 6250 - Engines: P&W R-985-14B 450 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Registered owner: James N. Fry - Airworthiness certificate: Standard, Normal - Last inspection: 100 hour, May 24, 2001, 10 hours before - Departed: PALH, ANCHORAGE, AK ## Flight crew As NTSB recorded them. NTSB leaves out names. - Flight instructor; age 60; injuries: none; flight instructor, commercial; airplane ratings: single-engine sea, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; last flight review February 7, 2000; seat: right; flight hours: 13,631 total, 1 in this make and model, 13,000 as pilot in command, 57 in the last 90 days, 14 in the last 30 days, 2 in the last 24 hours - Student pilot; age 47; injuries: none; private; airplane ratings: single-engine land, single-engine sea; medical: class 3, valid medical--w/ waivers/lim; last flight review November 5, 2000; seat: left; flight hours: 126 total, 42 in this make and model, 60 as pilot in command, 51 in the last 90 days, 35 in the last 30 days, 2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: variable at 5 knots - Visibility: 20 statute miles - Lowest ceiling: none - Temperature: 64 °F 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.