Lake Hood Seaplane Base Airport
Aircraft Accident/Incident Report

Anchorage, Alaska 99502
Sunday, September 30, 2012 15:45 AKD

NTSB Narrative Summary Released at Completion of Accident

The pilot was landing an amphibious, float-equipped airplane on a lake on the final leg of a 4-day, wildlife survey operation. The pilot stated that she had not conducted a water landing recently, so she elected to land on the water to maintain proficiency. She said that because the airplane had a tendency to turn left during water landings, she was not comfortable landing it in the lake’s water lane (a confined area). Before landing, the pilot set about 50% right rudder trim to compensate for the left-turning tendency and confirmed that the wheels were in the up position. She noted that her airspeed during the approach was slightly faster than normal. The pilot said that during touchdown, the airplane veered to the left, then to the right, then veered violently to the right, as though it "caught a float," and the right wing struck the water. The airplane then pivoted abruptly to the right, cartwheeled, and began to sink. The pilot was able to escape through a broken side window. Postaccident examination of the airframe and engine revealed no evidence of mechanical malfunctions or failures that would have precluded normal operation. The flight in the government-owned, government-operated airplane was a public aircraft operation (PAO). Because the Federal Aviation Administration (FAA) has no statutory authority to regulate PAOs, the agency’s training program was not subject to civil aircraft requirements. A review of the flight training program revealed that it did not include curriculums, events, or testing and checking procedures. No written maneuvers and procedures guide with acceptable performance standards had been developed. As a result, no standardization existed within the pilot group, and tribal knowledge and experimentation were accepted as part of the organization’s culture. Multiple checklists existed for the airplane, and pilots were allowed to use whichever checklist they preferred. The agency did not, nor was it required to, incorporate best practices and industry standards into its training program and airplane operations, and no FAA oversight was required or provided. The agency’s vendor pilot requirements were substantially higher with stricter standards, and required FAA oversight, compared to those for agency pilots flying similar missions. The pilot had logged 232 flight hours in the accident make and model airplane, including 68 water landings, only 2 of which were logged without an instructor on board. She stated that during her training in the accident make and model airplane, she completed only one step turn. She further stated that during her interagency pilot evaluation/qualification check, step turns were not completed. The pilot said that the check pilot was not comfortable performing the maneuver, so they agreed to sign off the maneuver on the check ride form but did not accomplish the task. Because performing step turns develops a pilot’s skill in maintaining directional control of a floatplane during high-speed water taxiing, if the pilot had received thorough training in performing step turns in the accident make and model airplane, she would have been less likely to lose control of the airplane during landing.

NTSB Probable Cause Narrative

The pilot's failure to maintain directional control while landing, which resulted in a collision with the water. Contributing to the accident were the pilot's lack of experience conducting waterborne operations in the accident make and model airplane and the public aircraft operator’s lack of training standardization.

Event Information

Type of Event Accident
Event Date 9/30/2012
Event Day of the Week Sunday
Time of Event 1545
Event Time Zone --
Event City Anchorage
Event State ALASKA
Event Country --
Zipcode of the event site 99502
Event Date Year 2012
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 611029N
Event Location Longitude 1495819W
Event Location Airport Lake Hood Seaplane Base
Event Location Nearest Airport ID PALH
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport --
Airport Elevation 71
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 2353 Atlantic Daylight Time
Direction of event from weather observation facility (degrees) 275
Weather Observation Facility ID PANC
Elevation of weather observation facility 151
Distance of event from weather observation facility (units?) 1
Time Zone of the weather observation ADT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 6000
Sky/Lowest/Cloud Conditions Few
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 7
Dew Point at event time (in degress fahrenheit) -2
Wind Direction (degrees magnetic) --
Variable Wind Indicator --
Wind Speed (knots) --
Wind Velocity Indicator Calm
Wind Gust Indicator --
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.02
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 32043
NTSB Notification Source FAA Alaskan Regional Operation
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Nov 20 2013 10:42AM
User who most recently changed record stam
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N745
NTSB Number ANC12GA114
Missing Aircraft Indicator --
Federal Aviation Reg. Part Public Use
Type of Flight Plan filed VFR
Flight plan Was Activated? Yes
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name QUEST AIRCRAFT COMPANY LLC
Aircraft Model KODIAK 100
Aircraft Series Identifier --
Aircraft Serial Number 100-0022
Certified Max Gross Weight 7255
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 10
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection May 31 2012 12:00AM
Airframe hours since last inspection --
Airframe Hours 284
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type C126
Aircraft Owner Name UNITED STATES DEPT OF THE INTERIOR
Aircraft Owner Street Address C/O NBC AVIATION MANAGEMENT
Aircraft Owner City BOISE
Aircraft Owner State ID
Aircraft Owner Country USA
Aircraft Owner Zipcode 83706-3991
Operator is an individual? No
Operator Name U.S. Fish and Wildlife Service
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Anchorage
Operator State AK
Operator Country USA
Operator Zip code 99517
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Public Use
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code PAEN
Departure City Kenai
Departure State AK
Departure Country USA
Departure Time 1520
Departure Time Zone ADT
Destination Same as Local Flt crash at destination city
Destination Airport Code PALH
Destination City Anchorage
Destination State AK
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Nov 20 2013 10:42AM
User who most recently changed record stam
Since inspection or accident Time of Accident
Event Location Runway Number and Location 28
Runway Length 4540
Runway Width 188
Sight Seeing flight No
Air Medical Flight No
Medical Flight --