Lake Palourde Base Heli Airport
Aircraft Accident/Incident Report

Amelia, Louisiana 70340
Thursday, July 17, 1997 6:30 CDT

NTSB Narrative Summary Released at Completion of Accident

After completing hover checks, the pilot initiated a takeoff through a cut in the trees. At about 60 feet AGL and 40 knots, a 'loud bang' occurred. The helicopter 'yawed left and the rotor rpm began to decay.' The pilot initiated an autorotation and made a 'hard/steep right turn' towards the only available landing area 75 yards to his right rear. The helicopter landed hard on its right skid and rolled over coming to rest on its right side. The engine was test run, and its performance exceeded new engine specifications. Following the test run, the engine was partially disassembled and inspected. Indications of blood and flesh were found in the impeller and through the compressor air discharge tubes. This finding was consistent with other engines that had been examined and found to have ingested green tree frogs. The pilot also reported that during his preflight inspection, he did not observe any green tree frogs.

NTSB Probable Cause Narrative

partial loss of engine power due to frog(s) being ingested into the engine. Factors relating to the accident were: the lack of altitude and lack of suitable terrain for a forced landing.

Event Information

Type of Event Accident
Event Date 7/17/1997
Event Day of the Week Thursday
Time of Event 630
Event Time Zone Central Daylight Time
Event City AMELIA
Event State LOUISIANA
Event Country --
Zipcode of the event site 70340
Event Date Year 1997
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport LAKE PALOURDE BASE HELI
Event Location Nearest Airport ID 7R3
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 5
Weather Briefing Completeness Not pertinent
Investigator's weather source Witness
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 3000
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 7
Air Temperature at event time (in degrees celsius) 24
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 100
Variable Wind Indicator Unknown
Wind Speed (knots) 5
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
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) 1141
NTSB Notification Source --
NTSB Notification Date Jul 17 1997 12:00AM
NTSB Notification Time 750
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 12:25PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N3892R
NTSB Number FTW97LA270
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 Bell
Aircraft Model 206L-1
Aircraft Series Identifier 206L-1
Aircraft Serial Number 45594
Certified Max Gross Weight 4150
Aircraft Category Helicopter
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 7
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection AAIP
Date of Last Inspection Jun 27 1997 12:00AM
Airframe hours since last inspection 73
Airframe Hours 25007
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name PETROLEUM HELICOPTERS, INC.
Aircraft Owner Street Address P.O. BOX 90808
Aircraft Owner City LAFAYETTE
Aircraft Owner State LA
Aircraft Owner Country
Aircraft Owner Zipcode 70509
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
Operator Code HEEA
Owner has at least one certificate Yes - certificate holder
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) Business
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code 7R3
Departure City
Departure State
Departure Country
Departure Time 630
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code
Destination City SHIP SHOAL 214
Destination State GM
Destination Country
Specific Phase of Flight Emergency landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
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 --