Salinas Muni Airport
Aircraft Accident/Incident Report

Salinas, California 93905
Wednesday, July 30, 2003 10:56 PDT

NTSB Narrative Summary Released at Completion of Accident

The commercial helicopter pilot reported that while in cruise flight, the helicopter developed a severe vibration. The vibration was so extreme that he was not able to read any of his flight instruments. He declared an emergency, started a slow descent, and made a run-on landing to a dirt field. A post-incident inspection revealed that the right forward transmission lift link had failed at the lower rod end assembly. The failure point was in the threaded area of the rod end. The total time on the failed part (p/n 222-331-626-105) was 3,890.8 hours total time since new. The lift link assembly was the original part installed on the incident helicopter. The lift link assembly was shipped to the National Transportation Safety Board, Materials Laboratory and forwarded to Bell Helicopters for further analysis. It was determined that the link fracture was a result of fatigue in a thread root of the lower elastometric rod end bearing housing. No material discrepancies or deficiencies were found in the rod end bearing housing.

NTSB Probable Cause Narrative

The fatigue failure (fracture) of the right forward transmission lift link during cruise flight, which resulted in a severe vibration and an emergency landing.

Event Information

Type of Event Incident
Event Date 7/30/2003
Event Day of the Week Wednesday
Time of Event 1056
Event Time Zone Pacific Daylight Time
Event City SALINAS
Event State CALIFORNIA
Event Country --
Zipcode of the event site 93905
Event Date Year 2003
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 363900N
Event Location Longitude 1213600W
Event Location Airport SALINAS MUNI
Event Location Nearest Airport ID SNS
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 2
Degrees magnetic from airport 30
Airport Elevation --
Weather Briefing Completeness Not pertinent
Investigator's weather source Pilot
Time of the weather observation
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID --
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation --
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 6
Air Temperature at event time (in degrees celsius) 29
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 240
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 5
Wind Velocity Indicator --
Wind Gust Indicator Unknown
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.95
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 4
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 16887
NTSB Notification Source FAA
NTSB Notification Date Aug 4 2003 12:00AM
NTSB Notification Time 1200
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Dec 28 2004 12:45PM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office WP-FSDO-OAKLAND

Aircraft Involved

Aircraft #1

Aircraft Registration Number N29KH
NTSB Number LAX03IA252
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
Type of Flight Plan filed Company VFR
Flight plan Was Activated? No
Damage None
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Bell
Aircraft Model 222
Aircraft Series Identifier --
Aircraft Serial Number 47053
Certified Max Gross Weight 7850
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 6
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection May 20 2003 12:00AM
Airframe hours since last inspection 118.7
Airframe Hours 3890.8
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name CALIFORNIA SHOCK-TRAUMA AIR RESCUE
Aircraft Owner Street Address 20876B Corsair Blvd.
Aircraft Owner City Hayward
Aircraft Owner State CA
Aircraft Owner Country USA
Aircraft Owner Zipcode 94545
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 STRA
Owner has at least one certificate --
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
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 --
Departure Point Same as Event No
Departure Airport Code --
Departure City Hollister
Departure State CA
Departure Country USA
Departure Time 1050
Departure Time Zone PDT
Destination Same as Local Flt --
Destination Airport Code SNS
Destination City Salinas
Destination State CA
Destination Country USA
Specific Phase of Flight Cruise - normal
Report sent to ICAO? Yes
Evacuation occurred Yes
Date of most recent change to record Oct 27 2004 11:40AM
User who most recently changed record LABJ
Since inspection or accident Last Inspection
Event Location Runway Number and Location NA
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight Yes
Medical Flight Medical Emergency