# NTSB ANC14CA057: Dehavilland Beaver DHC 2, N87808, Illiamna, AK, August 1, 2014 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: August 1, 2014, 06:45 local (14:45 UTC) - Place: Illiamna, AK - Coordinates: 59.20639, -154.97055 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=59.2064&lon=-154.9706&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-landing roll: Landing area overshoot](https://openairdocs.org/ntsb-events/380) - Highest injury: No injuries - Injuries: 7 uninjured - Status: Completed, report December 15, 2014 - Report: Approved by Office Director - NTSB office: Alaska Regional Office - Parties: Federal Aviation Administration; ANC FSDO - NTSB case key (mKey): 89791 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC14CA057 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/89791/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=89791 - Page: https://openairdocs.org/ntsb/ANC14CA057 ## Probable cause The pilot's inadequate landing technique that resulted in a landing area overrun. Contributing was the glassy water conditions. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Performance/control parameters: pitch control](https://openairdocs.org/ntsb-findings/01062022): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [All aircraft, 526 cases](https://openairdocs.org/ntsb-findings/01062022/cases.md) - [Runway/land/takeoff/taxi surface: glassy surface](https://openairdocs.org/ntsb-findings/03023025): Environmental issues › Physical environment · Effect on operation (probable cause); cases with it: [All aircraft, 25 cases](https://openairdocs.org/ntsb-findings/03023025/cases.md) - [Action: incorrect action performance](https://openairdocs.org/ntsb-findings/02041015): Personnel issues › Action/decision · Pilot (probable cause); cases with it: [All aircraft, 1,386 cases](https://openairdocs.org/ntsb-findings/02041015/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Approach: Miscellaneous/other](https://openairdocs.org/ntsb-events/900); cases with it: [All aircraft, 1,556 cases](https://openairdocs.org/ntsb-events/900/sequence.md) - [Landing-landing roll: Landing area overshoot](https://openairdocs.org/ntsb-events/380) (defining event); cases with it: [All aircraft, 400 cases](https://openairdocs.org/ntsb-events/380/sequence.md) - [Landing-landing roll: Collision during takeoff/land](https://openairdocs.org/ntsb-events/490); cases with it: [All aircraft, 1,309 cases](https://openairdocs.org/ntsb-events/490/sequence.md) ## Analysis The pilot was landing a float-equipped airplane at a remote lake, during glassy water conditions. Glassy water landings usually consume a considerable landing area. The pilot stated that during the landing, the airplane touched down in the typical area as in previous landings; however, the airplane remained on the step (the float/hull is supported on top of the water surface as opposed to plowing through it) longer than usual and the floats subsequently impacted the shoreline. The airplane sustained substantial damage to the fuselage. The pilot stated that there were no preaccident mechanical malfunctions or anomalies that would have precluded normal operation. ## Factual narrative The pilot was landing a float-equipped airplane at a remote lake, during glassy water conditions. Glassy water landings usually consume a considerable landing area. The pilot stated that during the landing, the airplane touched down in the typical area as in previous landings; however, the airplane remained on the step (the float/hull is supported on top of the water surface as opposed to plowing through it) longer than usual and the floats subsequently impacted the shoreline. The airplane sustained substantial damage to the fuselage. The pilot stated that there were no preaccident mechanical malfunctions or anomalies that would have precluded normal operation. ## Aircraft - Registration: N87808 (not matched to a registry record) - Reported make and model: DEHAVILLAND BEAVER DHC 2 (MARKI) - Category: Airplane - Serial number: 56-0408 - Year built: 1957 - Airframe hours: 12575 - Engines: Pratt & Whitney R-985-AN-14B 450 horsepower reciprocating - Damage: Substantial damage - Flight: Business, Part 91 - Operator: Katmai Air LLC, doing business as Katmai Air and Kulik Lodge - Registered owner: Katmai Air LLC - Airworthiness certificate: Standard, Normal - Last inspection: 100 hour, July 21, 2014, 49 hours before - Departed: LKK, Kulik, AK - Destination: Illiamna, AK - Flight plan: Company VFR - Equipment: Handheld GPS, Satellite tracking device ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 64; injuries: none; airline transport, commercial; airplane ratings: single-engine sea, single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, with waivers/limitations; last flight review June 17, 2014; seat: left; restraint: 3-point; flight hours: 17,000 total, 2,400 in this make and model, 17,000 as pilot in command, 206 in the last 90 days, 134 in the last 30 days, 4 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: calm - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 54 °F, dew point 52 °F - Altimeter: 30.23 inHg - Observed at: PAIG, 30 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 20140801015229A](https://openairdocs.org/incident/20140801015229A), Aug 1, 2014: Dehavilland BEAVER DHC-2, Crosswinds Lake, AK, Substantial damage. PIC stated lake water was low with calm winds and conditions were glassy. Aircraft approach was normal and on speed with what he considered to be a normal… ## Docket (1 files) The files NTSB released with the investigation on December 5, 2014, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=89791. 814 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 814 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40419715&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.