Aircraft Accident/Incident Report

Tok, Alaska 99780
Friday, June 27, 1997 7:30 AKD

NTSB Narrative Summary Released at Completion of Accident

The second pilot was a rated float plane pilot, but did not meet the criteria to act as pilot-in-command (PIC) by his employer, the U.S. Fish and Wildlife Service (USFWS). The PIC, who was also employed by the USFWS, was a certifcated flight instructor, and was giving additional instruction to the second pilot to meet the USFWS standards for PIC. The second pilot was flying at the time of the accident. The two pilots had been practicing touch-and-go landings on a lake. During the approach to land, the airplane's floats inadvertently touched on a flat, grassy area short of the water. Engine power was applied, and the airplane continued to the lake to make an uneventful landing. Postflight inspection disclosed a damaged fuselage near the left float's rear attachment point. The PIC believes the airplane may have encountered a downdraft just prior to touching down on the grassy area.

NTSB Probable Cause Narrative

The second pilot/dual student's failure to maintain a proper glidepath, and the pilot-in-command/flight instructor's inadequate supervision. A factor associated with the accident was a downdraft.

Event Information

Type of Event Accident
Event Date 6/27/1997
Event Day of the Week Friday
Time of Event 730
Event Time Zone --
Event City TOK
Event State ALASKA
Event Country --
Zipcode of the event site 99780
Event Date Year 1997
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 50
Air Temperature at event time (in degrees celsius) 16
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 270
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 15
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1540
NTSB Notification Source --
NTSB Notification Date Jul 1 1997 12:00AM
NTSB Notification Time 1030
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 12:19PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N3685Z
NTSB Number ANC97TA095
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed Company VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Piper
Aircraft Model PA-18-180
Aircraft Series Identifier PA-18-180
Aircraft Serial Number 18-7417
Certified Max Gross Weight 1750
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Jun 15 1997 12:00AM
Airframe hours since last inspection 31
Airframe Hours 5000
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name U.S. DEPT. OF INTERIOR
Aircraft Owner Street Address 4837 AIRCRAFT DR.
Aircraft Owner City ANCHORAGE
Aircraft Owner State AK
Aircraft Owner Country
Aircraft Owner Zipcode 99502
Operator is an individual? --
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 P.O. BOX 779
Operator City TOK
Operator State AK
Operator Country
Operator Zip code 99780
Operator Code
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
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) Instructional
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 630
Departure Time Zone ADT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Approach
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:30AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --