Individually Owned: 150,657
Corporate Owned: 137,281
Juneau International Airport
Aircraft Accident/Incident Report
Juneau, Alaska 99801
Monday, July 25, 2005 12:06 AKD
NTSB Narrative Summary Released at Completion of Accident
The commercial certificated pilot was departing on a local area sightseeing flight under Title 14, CFR Part 135, in a skid-equipped helicopter. During the initial climb, the engine lost power about 75 feet above the ground. The pilot entered an autorotation and attempted to cushion the landing, but the helicopter landed hard, collapsing the landing gear, and wrinkling the tail boom. A post-touchdown fire was burning in the engine compartment as the occupants exited the helicopter. Postaccident examination of the engine revealed that a retaining leaf spring, normally installed within engine Module 1 to hold several oil tubes in place, became unclipped. The legs of the spring made contact with the adjacent rotating engine power shaft. The shaft was severed, which resulted in an overspeed and failure of the free turbine. The engine had accrued 737.9 hours since Modules 2 and 3 were repaired in 2003, and Module 1 underwent a visual inspection. No maintenance had been done on Module 1 since the 2003 inspection.
NTSB Probable Cause Narrative
A loss of engine power during takeoff initial climb due to the separation of the engine power turbine shaft, the failure of which was due to a disconnected adjacent leaf spring, which resulted in an emergency landing after takeoff and subsequent hard landing.
Event Information
| Type of Event | Accident |
| Event Date | 7/25/2005 |
| Event Day of the Week | Monday |
| Time of Event | 1206 |
| Event Time Zone | -- |
| Event City | Juneau |
| Event State | ALASKA |
| Event Country | -- |
| Zipcode of the event site | 99801 |
| Event Date Year | 2005 |
| Event Date Month | 7 |
| MidAir Collision Indicator | -- |
| On Ground Collision occurred ? | -- |
| Event Location Latitude | 582118N |
| Event Location Longitude | 1343435W |
| Event Location Airport | Juneau International |
| Event Location Nearest Airport ID | PAJN |
| 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 | 21 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1153 Atlantic Daylight Time |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | PAJN |
| Elevation of weather observation facility | 21 |
| Distance of event from weather observation facility (units?) | -- |
| Time Zone of the weather observation | ADT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 6500 |
| Lowest Non-Ceiling Height | 1500 |
| Sky/Lowest/Cloud Conditions | Few |
| Sky Condition for Lowest Ceiling | Overcast |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 15 |
| Dew Point at event time (in degress fahrenheit) | 12 |
| Wind Direction (degrees magnetic) | 70 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 9 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.26 |
| 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 | 7 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 19087 |
| NTSB Notification Source | FAA Regional Operations Center |
| NTSB Notification Date | Jul 25 2005 12:00AM |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Feb 28 2006 12:35PM |
| User who most recently changed record | NTSB\JOHB |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | FAA-AL JNU FSDO 05 |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N57958 |
| NTSB Number | ANC05LA107 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 135: Air Taxi & Commuter |
| Type of Flight Plan filed | Company VFR |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | Ground and In-flight |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Aerospatiale |
| Aircraft Model | AS-350BA |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 1512 |
| Certified Max Gross Weight | 4630 |
| Aircraft Category | Helicopter |
| Aircraft Registration Class | -- |
| 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 | 100 Hour |
| Date of Last Inspection | Jul 1 2005 12:00AM |
| Airframe hours since last inspection | 48 |
| Airframe Hours | 9232 |
| ELT Installed | Yes |
| ELT Activated | Yes |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Temsco Helicopters Inc. |
| Aircraft Owner Street Address | 1650 Maplesden Way |
| Aircraft Owner City | Juneau |
| Aircraft Owner State | AK |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 99801 |
| Operator is an individual? | No |
| 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 | HXS0 |
| Owner has at least one certificate | -- |
| Other Operator of large aircraft? | -- |
| Certified for Part 133 or 137 Operation | External Load |
| Operator Certificate Number | -- |
| Indicates whether an air carrier operation was scheduled or not | Non-scheduled |
| Indicates Domestic or International Flight | Domestic |
| Operator carrying Pax/Cargo/Mail | Passenger Only |
| Type of Flying (Per_Bus / Primary) | -- |
| Second Pilot on Board | No |
| Departure Point Same as Event | Yes |
| Departure Airport Code | PAJN |
| Departure City | Juneau |
| Departure State | AK |
| Departure Country | USA |
| Departure Time | 1205 |
| 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 | Takeoff - initial climb |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Dec 19 2005 2:54PM |
| User who most recently changed record | PETL |
| Since inspection or accident | Last Inspection |
| Event Location Runway Number and Location | NA |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | Yes |
| Air Medical Flight | No |
| Medical Flight | -- |