ANC83LA078

NTSB accident investigation · Cessna U206 · Twin Hills, AK · May 8, 1983

Accident · No injuriesLimited investigationFinal report
Date
May 8, 1983, 08:00 local (16:00 UTC)
Place
Twin Hills, AK
Injuries
5 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N49HHCessna U206
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19830508018339A
Case key
4116

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - on ground/waterTakeoff - roll/run
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandCause
Self-induced pressurePilot in commandFactor
Terrain condition - rough/unevenFactor
Terrain condition - loose gravel/sandyFactor
Directional control - not possiblePilot in command
Ground loop/swerve - uncontrolledPilot in command
On ground/water encounter with terrain/waterTakeoff

Analysis

The plt was dispatched to a beach area to pick up passengers. After landing, the passengers & baggage were loaded & the plt attempted to takeoff. The top & bottom of the beach area had some humps of gravel that blended into the beach sand. During the takeoff roll, the down beach wheel hit a hump. The acft bounced in the air, settled in a yaw, encountered loose gravel & subsequently went into the water. Reportedly, there was fierce competition among air taxi operators for lucrative business in this area. Also, the beach conditions reportedly changed with the tides.

Aircraft

Registration
N49HH
Reported as
Cessna U206
Category
Airplane
Serial number
U20604477
Airframe hours
4,850
Engine
Continental IO-520-L, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 135
Registered owner
Yute Air Alaska
Airworthiness certificate
Standard, Normal
Destination
DLG · Dillingham, AK
Flight plan
Company VFR

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
21
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
2,190 total · 2,090 as pilot in command · 210 in the last 90 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
30 statute miles
Lowest ceiling
None
Temperature
43 °F, dew point 37 °F
Altimeter
29.00 inHg

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.