# NTSB ANC10CA054: Dehavilland DHC-2 MK. I(L20A), N9RW, Igiugig, AK, June 28, 2010 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: June 27, 2010, 17:30 local (Jun 28, 2010, 01:30 UTC) - Place: Igiugig, AK - Coordinates: 59.139999, -155.554992 - Nearby events: https://openairdocs.org/map.md?lat=59.1400&lon=-155.5550&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Defining event: [Takeoff: Collision during takeoff/land](https://openairdocs.org/ntsb-events/490) - Highest injury: No injuries - Injuries: 7 uninjured - Status: Completed, report December 20, 2010 - Report: Approved by Office Director - NTSB office: Alaska Regional Office - Parties: FAA FSDO-03 - NTSB case key (mKey): 76451 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC10CA054 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/76451/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=76451 - Page: https://openairdocs.org/ntsb/ANC10CA054 ## Probable cause The pilot's decision to use only a portion of the available takeoff area, which resulted in a collision with terrain during takeoff. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Aircraft capability: takeoff distance](https://openairdocs.org/ntsb-findings/01061025): Aircraft › Aircraft oper/perf/capability · Related operating info (probable cause); cases with it: [Dehavilland DHC-2 MK. I(L20A), 1 case](https://openairdocs.org/ntsb-findings/01061025/cases.md?model=2808002), [All aircraft, 67 cases](https://openairdocs.org/ntsb-findings/01061025/cases.md) - [Info processing/decision: decision making/judgment](https://openairdocs.org/ntsb-findings/02041520): Personnel issues › Action/decision · Pilot (probable cause); cases with it: [Dehavilland DHC-2 MK. I(L20A), 4 cases](https://openairdocs.org/ntsb-findings/02041520/cases.md?model=2808002), [All aircraft, 3,098 cases](https://openairdocs.org/ntsb-findings/02041520/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Takeoff: Collision during takeoff/land](https://openairdocs.org/ntsb-events/490) (defining event); cases with it: [Dehavilland DHC-2 MK. I(L20A), 3 cases](https://openairdocs.org/ntsb-events/490/sequence.md?model=2808002), [All aircraft, 1,309 cases](https://openairdocs.org/ntsb-events/490/sequence.md) ## Analysis The commercial pilot was taking off on a passenger flight in conjunction with a remote lodge operation under Title 14, CFR Part 91. The pilot said he picked up passengers in the float-equipped airplane on a beach, and water-taxied out into the lake for takeoff. He said he taxied out about 1,200 feet, reversed course into the wind, and initiated a takeoff. He said when the airplane reached his predetermined abort point, the airplane was still on the water, and might not lift off in time to avoid the terrain ahead. The pilot said rather than abort the takeoff he elected to apply full power and continue the takeoff. He said the airplane collided with the bank, and nosed over. The pilot said there were no preaccident mechanical anomalies with the airplane. The owner of the company said the lake was about 1 mile wide where the pilot elected to takeoff. He said the airplane received substantial damage to the wings and fuselage. He also said the passengers related to him that the engine sounded fine, but they did not think the pilot taxied out very far into the lake. ## Factual narrative The commercial pilot was taking off on a passenger flight in conjunction with a remote lodge operation under Title 14, CFR Part 91. The pilot said he picked up passengers in the float-equipped airplane on a beach, and water-taxied out into the lake for takeoff. He said he taxied out about 1,200 feet, reversed course into the wind, and initiated a takeoff. He said when the airplane reached his predetermined abort point, the airplane was still on the water, and might not lift off in time to avoid the terrain ahead. The pilot said rather than abort the takeoff he elected to apply full power and continue the takeoff. He said the airplane collided with the bank, and nosed over. The pilot said there were no preaccident mechanical anomalies with the airplane. The owner of the company said the lake was about 1 mile wide where the pilot elected to takeoff. He said the airplane received substantial damage to the wings and fuselage. He also said the passengers related to him that the engine sounded fine, but they did not think the pilot taxied out very far into the lake. ## Aircraft - Registration: [N9RW](https://openairdocs.org/aircraft/N9RW), registered now, S/N 1095 (OpenAirDocs) - Reported make and model: DEHAVILLAND DHC-2 MK. I(L20A) - Registry model: [Dehavilland DHC-2 MK. I(L20A)](https://openairdocs.org/model/dehavilland-dhc-2-mk-i-l20a) (registry code 2808002) (OpenAirDocs) - Registry engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 1095 - Airframe hours: 8588 - Engines: P&W R-985 SERIES 450 horsepower reciprocating - Damage: Substantial damage - Flight: Other work use, Part 91 - Operator: Branham Adventures Inc., doing business as Royal Wolf Lodge - Registered owner: T-Corp - Airworthiness certificate: Standard, Normal - Last inspection: Annual, May 28, 2010 - Departed: Igiugig, AK - Destination: Igiugig, AK - Flight plan: Company VFR ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 58; injuries: none; commercial; airplane ratings: single-engine sea, multi-engine land, single-engine land, multi-engine sea; instrument ratings: airplane; medical: class 2, with waivers/limitations; last flight review July 20, 2009; seat: left; flight hours: 5,000 total, 2,000 in this make and model, 5,000 as pilot in command, 45 in the last 90 days, 45 in the last 30 days, 2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 190° at 10 knots, gusting 12 - Visibility: 10 statute miles - Lowest ceiling: 1,200 ft overcast - Temperature: 46 °F, dew point 45 °F - Altimeter: 29.97 inHg - Observed at: IGG, 22 nm away ## 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 20100627038129A](https://openairdocs.org/incident/20100627038129A), Jun 27, 2010: Dehavilland DHC-2 MK. I, Kukaklek Lake, AK, Substantial damage. Pilot initiated takeoff procedure on Kukaklek Lake, the aircraft did not become airborne and continued on land striking the lake shore causing substantial… ## Other investigations on N9RW (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 GAA18CA581](https://openairdocs.org/ntsb/GAA18CA581), Sep 24, 2018: De Havilland DHC 2 MK. I(L20A) (N9RW), Kukaklek Lake, AK, substantial damage. Probable cause: The pilot’s failure to see and avoid a sand bar during a water takeoff, which resulted in the airplane impacting a river bank. ## Docket (1 files) The files NTSB released with the investigation on September 16, 2010, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=76451. 842 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 842 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40335960&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.PDF 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.