ASN Wikibase Occurrence # 371852
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information.
If you feel this information is incomplete or incorrect, you can submit corrected information.
| Date: | Thursday 19 November 1987 |
| Time: | 16:45 LT |
| Type: |  Bell 206L-3 |
| Owner/operator: | William Lyon Company |
| Registration: | N66WL |
| MSN: | 51041 |
| Year of manufacture: | 1982 |
| Total airframe hrs: | 817 hours |
| Engine model: | Allison 250-C30 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Rialto, CA -
 United States of America
|
| Phase: | Take off |
| Nature: | Ferry/positioning |
| Departure airport: | Rialto, CA (L67) |
| Santa Ana, CA (KSNA) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PILOT LOST CONTROL OF THE RECENTLY PAINTED HELICOPTER DURING THE TAKEOFF. THE PAINT SHOP PERSONNEL HAD MOVED THE HELO TO A AIRPLANE PARKING SPOT. THE HELO SKIDS STRADDLED THE TIE-DOWN CHAINS. TWO WING TIE-DOWN CHAINS WERE INCORRECTLY ATTACHED TO THE RIGHT LANDING GEAR SKID. ONE WITNESS INDICATED THAT HE WALKED AROUND THE HELO EXAMINING THE NEW PAINT BEFORE THE ARRIVAL OF THE PLT AND PAX. HE STATED THAT HE DID NOT NOTICE ANY TIE-DOWN CHAINS ON THE ACFT. THE PLT DID NOT NOTICE THE TIE-DOWN CHAINS DURING THE PREFLIGHT CHECK AND DID NOT REMOVE THEM. THE CHAINS WERE ATTACHED WITHOUT TENSION. AS THE HELO CAME TO A HOVER, THE SLACK WAS TAKEN UP. WITH THE RIGHT SKID TUBE TETHERED, THE HELO ROLLED RIGHT ALLOWING THE MAIN ROTOR BLADES TO STRIKE THE GROUND. AC 20-35C STATES, 'FASTEN THE TIE-DOWN ROPES TO THE FUSELAGE MOORING POINTS AND EXTEND THEM TO THE GROUND MOORING ANCHORS'. THE CHAINS WERE DARK BROWN IN COLOR AND DID NOT CLEARLY CONTRAST WITH THE ASPHALT SURFACE.
Probable Cause:
Accident investigation:
 |
|
Sources:
NTSB LAX88FA033
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 26-Mar-2024 10:56 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2024 Flight Safety Foundation