Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Yuma, Arizona 85369
Tuesady, September 25, 1984 6:01 MST
NTSB Narrative Summary Released at Completion of Accident
THE PILOT STATED THAT HE WAS CARRYING A LOAD OF PESTICIDE FOR APPLICATION ON A BROCCOLI FIELD. THE AIRCRAFT WAS IN LEVEL FLIGHT, APPROXIMATELY 4 TO 8 FEET AGL WHEN IT BECAME UNCONTROLLABLE AND IMPACTED THE GROUND. THE AIRCRAFT WAS CONSUMED BY A POST CRASH FIRE. EXAMINATION OF THE AIRCRAFT AFTER THE ACCIDENT REVEALED THAT ONE OF THE TWO MAIN ROTOR BLADES HAD SEPARATED IN-FLIGHT. EXAMINATION OF THE SEPARATED ROTOR BLADE REVEALED A FATIGUE TYPE FRACTURE OF THE MAIN ROTOR BLADE SPAR TUBE THROUGH THE OUTBOARD RETENTION BOLT HOLES. THE FAILED MAIN ROTOR BLADE SPAR BORE EVIDENCE OF CORROSION. THE MAIN ROTOR BLADE CUFF WAS THE SUBJECT OF AN AIRWORTHINESS DIRECTIVE THAT ACCORDING TO THE AIRCRAFT LOGBOOKS HAD BEEN COMPLIED WITH AS REQUIRED. THE LAST THREE LOGBOOK NOTATIONS, DOCUMENTING COMPLIANCE WITH THE AD, WERE ENTERED AFTER THE ACCIDENT.
NTSB Probable Cause Narrative
Not Yet Reported
Event Information
| Type of Event | Accident |
| Event Date | 9/25/1984 |
| Event Day of the Week | Tuesday |
| Time of Event | 601 |
| Event Time Zone | Mountain Standard Time |
| Event City | YUMA |
| Event State | ARIZONA |
| Event Country | -- |
| Zipcode of the event site | 85369 |
| Event Date Year | 1984 |
| Event Date Month | 9 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | |
| Event Location Nearest Airport ID | |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 0 |
| Degrees magnetic from airport | 0 |
| Airport Elevation | -- |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 600 Mountain Standard Time |
| Direction of event from weather observation facility (degrees) | 255 |
| Weather Observation Facility ID | YUM |
| Elevation of weather observation facility | 213 |
| Distance of event from weather observation facility (units?) | 8 |
| Time Zone of the weather observation | MST |
| Lighting Conditions | Dawn |
| Lowest Ceiling Height | 5000 |
| Lowest Non-Ceiling Height | 3000 |
| Sky/Lowest/Cloud Conditions | Scattered |
| 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) | 25 |
| Dew Point at event time (in degress fahrenheit) | 14 |
| Wind Direction (degrees magnetic) | 50 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 7 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 29 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | Unknown |
| METAR weather report | -- |
| Event Highest Injury | Serious |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | 1 |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 2332 |
| NTSB Notification Source | -- |
| NTSB Notification Date | -- |
| NTSB Notification Time | 0 |
| Fiche Number and/or location -used to find docket information | 26264 |
| Date of most recent change to record | Jan 2 2001 9:15AM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N9278Z |
| NTSB Number | LAX84LA494 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 137: Agricultural |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | -- |
| Damage | Destroyed |
| Aircraft Fire | Ground |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | HILLER |
| Aircraft Model | UH12ET |
| Aircraft Series Identifier | UH12ET |
| Aircraft Serial Number | 1819 |
| Certified Max Gross Weight | 2850 |
| 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 | 4 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Feb 29 1984 12:00AM |
| Airframe hours since last inspection | 304 |
| Airframe Hours | 6376 |
| ELT Installed | No |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | VALLEY SPRAYERS/DUSTERS INC. |
| Aircraft Owner Street Address | P.O. BOX 837 |
| Aircraft Owner City | SOMERTON |
| Aircraft Owner State | AZ |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 85350 |
| 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 | |
| Owner has at least one certificate | Yes - certificate holder |
| Other Operator of large aircraft? | No |
| Certified for Part 133 or 137 Operation | Agriculture |
| Operator Certificate Number | -- |
| Indicates whether an air carrier operation was scheduled or not | Unknown |
| Indicates Domestic or International Flight | Unknown |
| Operator carrying Pax/Cargo/Mail | Unknown |
| Type of Flying (Per_Bus / Primary) | Aerial Application |
| Second Pilot on Board | No |
| Departure Point Same as Event | Yes |
| Departure Airport Code | |
| Departure City | YUMA |
| Departure State | AZ |
| Departure Country | |
| Departure Time | 0 |
| Departure Time Zone | |
| 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 | Maneuvering |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 2 2001 10:36AM |
| 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 | -- |