ASN Wikibase Occurrence # 361792
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: | Saturday 26 June 1993 |
| Time: | 23:40 LT |
| Type: |  Enstrom F-28C |
| Owner/operator: | Falcon Helicopters, Inc. |
| Registration: | N625H |
| MSN: | 346 |
| Year of manufacture: | 1976 |
| Total airframe hrs: | 2161 hours |
| Engine model: | LYCOMING VHIO-360-EIAD |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Boulder, CO -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Unknown |
| Departure airport: | Longmont, CO (2V2) |
| (2V2) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
DURING A ONE TIME RENTAL PATROL FLIGHT, THE SHERIFF'S DEPUTIES AIR TAXIED THE HELICOPTER BY THE DISPATCH BUILDING AND AIMED THE HELICOPTER SPOTLIGHT IN THE WINDOW TO ALERT THE DISPATCHER THAT THEY WERE ATTEMPTING TO COMMUNICATE VIA PORTABLE RADIO. THE HELICOPTER BEGAN TO SPIN TO THE RIGHT AND AFTER SEVERAL REVOLUTIONS, THE PILOT IN COMMAND TOOK CONTROL FROM THE SECOND PILOT AND CUT POWER IN ORDER TO STOP THE SPIN. HE GUIDED THE HELICOPTER TO THE POLICE PARKING LOT BESIDE THE BUILDING AND COLLIDED WITH TWO VEHICLES PARKED IN THE LOT. THE TAIL ROTOR DRIVE AND CONTROL SYSTEM WERE NOT COMPROMISED IN THE ACCIDENT AND EXAMINATION PROVIDED NO EVIDENCE OF FAILURE OR MALFUNCTION. ACTUAL WIND CONDITIONS AT THE ACCIDENT SITE ARE UNKNOWN; HOWEVER, THE PILOT FLYING STATED THAT HE THOUGHT A WIND SHIFT OCCURRED AND HE WAS ATTEMPTING TO TURN INTO THE WIND WHEN CONTROL WAS LOST.
Probable Cause: A FAILURE BY THE PILOT FLYING TO ADEQUATELY COMPENSATE FOR WIND CONDITIONS WHICH LED TO A LOSS OF TAIL ROTOR CONTROL. A FACTOR WAS: INADEQUATE SUPERVISION BY THE PILOT IN COMMAND.
Accident investigation:
 |
|
Sources:
NTSB DEN93LA070
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 17-Mar-2024 07:47 | 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