GENERAL INFORMATION FOR NTSB REPORT: ANC00LA055
Data Source NTSB AVIATION ACCIDENT/INCIDENT DATABASE
NTSB Report Nbr ANC00LA055
Event Id 20001212X20934
Local Date 05/05/2000
Local Time 1400
State AK
Event Type ACCIDENT
Injury Severity NONE
Record Status
Mid Air Collision NO
Event Location OFF AIRPORT/AIRSTRIP

WEATHER INFORMATION
Weather Briefing Complete NOT PERTINENT
Basic Weather Conditions VISUAL METEOROLOGICAL COND
Light Condition DAY
Cloud Condition SCATTERED
Cloud Height above Ground Level (ft) 4700
Ceiling Height above Ground Level (ft) 7500
Cloud Type OVERCAST
Visibility RVR (ft) 0
Visibility RVV (sm) 0
Visibility (sm) 50
Wind Direction (deg) 0
Wind Condition Flag V
Wind Speed (knots) 0
Wind Condition Indicated Light and Variable

AIRCRAFT INFORMATION
Aircraft 1
Type of Operation PART 91: GENERAL AVIATION
Registration Number N49686
Aircraft Make BELL
Aircraft Model 206
Aircraft Series B
Aircraft Damage SUBSTANTIAL
Aircraft Fire NONE
Aircraft Explosion NONE
Aircraft Type HELICOPTER
Aircraft Homebuilt UNKNOWN
Phase of Flight LANDING
Aircraft Use POSITIONING
Flight Plan Filed COMPANY VFR
Operator Name COASTAL HELICOPTERS INC
Operator Doing Business As
Owner Name COASTAL HELICOPTERS, INC.
Number of Seats 5
Number of Engines 1
ELT Installed YES
ELT Operated NO
Departure Airport Id JNU
Departure City JUNEAU
Departure State ALASKA
Last Departure Point NO
Destination Local DEST & DEPARTURE SAME, ACCIDENT CAN OCCUR ANYWHERE
Destination Airport Id
Destination City
Runway Id 0
Air Carrier Operating Certificates YES
Air Carrier Other Operating Certificates UNKNOWN
Rotocraft/Agriculture Operating Certificate EXTERNAL LOAD
Cert Max Gross Wgt 3200

ENGINE INFORMATION

Aircraft 1 - Engine : #1
Engine Manufactuer Allison
Engine Model 250-C20
Engine Horsepower 425
Engine Thrust HP

INJURY INFORMATION
Injury Summary for Aircraft 1
Fatal Serious Minor None
Crew 0 0 0 0
Pass 0 0 0 0
Total 0 0 0 1
Sequence of Events for Aircraft 1
Occurrence #1
UNDERSHOOT
Phase of Operation: LANDING

Events Sequence for Occurrence #1 of Aircraft 1
Event Seq # Event Group Code Subject Modifier Personnel Cause/Factor
1 2 PROPER TOUCHDOWN POINT NOT ATTAINED PILOT IN COMMAND CAUSE

Occurrence #2
ON GROUND/WATER ENCOUNTER WITH TERRAIN/WATER
Phase of Operation: LANDING

Events Sequence for Occurrence #2 of Aircraft 1
Event Seq # Event Group Code Subject Modifier Personnel Cause/Factor
1 1 ROTOR SYSTEM, TAIL ROTOR BLADE BLADE STRIKE




AIRCRAFT 1 PRELIMINARY REPORT


On May 5, 2000, about 1400 Alaska daylight time, a high skid, pop-out float equipped Bell 206B helicopter, N49686, sustained substantial damage while landing, about 20 miles southeast of Haines, Alaska, at latitude 58 degrees, 55 minutes north, and longitude 135 degrees, 11 minutes west. The helicopter was being operated as a visual flight rules (VFR) positioning flight under Title 14, CFR Part 91, when the accident occurred. The helicopter was operated by Coastal Helicopters Inc., Juneau, Alaska. The solo certificated commercial pilot was not injured. Visual meteorological conditions prevailed, and a company flight plan was in effect. The flight originated at the Juneau International Airport, Juneau, about 1325. During a telephone conversation with the National Transportation Safety Board investigator-in-charge on May 5, the pilot reported that she was landing on an elevated landing platform, at a remote radio repeater site. She said that after landing, as she retarded the throttle to the flight idle position, the helicopter began to shake violently, and tip backwards. She added that she opened the throttle in an attempt to restore rotor rpm, but the helicopter continued to tip backwards, and the tail rotor blades struck the ground. The helicopter sustained substantial to the tail rotor gearbox assembly, and vertical fin. According to a Federal Aviation Administration (FAA) operations inspector, Juneau Flight Standards District Office on May 5, the pilot stated to him that after she had an opportunity to think about the events surrounding the accident, she felt that she had landed the helicopter with the rear skid cross-tube over the aft edge of the elevated platform.

AIRCRAFT 1 FINAL REPORT


The certificated commercial helicopter pilot was landing on an elevated landing platform. After landing, as the throttle was retarded to the flight idle position, the helicopter began to shake violently, and tip backwards. The pilot opened the throttle in an attempt to restore rotor rpm, but the helicopter continued to tip backwards, and the tail rotor blades struck the ground. The helicopter sustained substantial to the tail rotor gearbox assembly, and vertical fin. According to a FAA operations inspector, the pilot stated to him that after she had an opportunity to think about the events surrounding the accident, she felt that she had landed the helicopter with the rear skid cross-tube over the aft edge of the elevated platform.

AIRCRAFT 1 CAUSE REPORT


The pilot's failure to attain a proper touchdown point.


END REPORT