ASN Wikibase Occurrence # 379718
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| Date: | Saturday 14 April 1984 |
| Time: | 10:10 LT |
| Type: |  Hughes 369D |
| Owner/operator: | Auto Publications,inc. |
| Registration: | N1092L |
| MSN: | 410940D |
| Total airframe hrs: | 1411 hours |
| Engine model: | Allison 250-C20B |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Kent, WA -
 United States of America
|
| Phase: | Approach |
| Nature: | Ferry/positioning |
| Departure airport: | Pendleton, OR (KPDT) |
| Seattle, WA (KBFI) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PLT REQUESTED CLEARANCE TO TRANSIT THE SEATTLE TCA FOR A LANDING AT BOEING FIELD. HE WAS ADVISED OF A DC-10 DEPARTING THE SEATTLE-TACOMA INTL ARPT & WAS CAUTIONED ABOUT POSSIBLE WAKE TURBULENCE. THE DC-10 PASSED THE HELICOPTER WITH ABOUT 1 1/2 MI LATERAL SEPARATION & WAS ABOUT 600 FT HIGHER THAN THE HELICOPTER. SHORTLY AFTER THAT, THE HELICOPTER ENCOUNTERED VIOLENT VORTEX TURBULENCE. IT EXCEEDED 90 DEG OF BANK & 90 DEG OF NOSE DOWN ATTITUDE, AT WHICH TIME, THE ENG FLAMED OUT. THE TURBULENCE CONTINUED THRU-OUT THE ENSUING AUTOROTATION, BUT DIMINISHED DURING THE LAST 100 TO 200 FT. THE PLT TRIED TO FLARE FOR A LANDING, BUT THE MAIN ROTOR BLADES FLEXED DOWNWIND & CONTACTED THE TAIL BOOM. DURING RECOVERY, LESS THAN 1 QT OF FUEL WAS FOUND IN THE HELICOPTER.
Probable Cause:
Accident investigation:
 |
|
Sources:
NTSB SEA84LA083
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 01-Apr-2024 08:47 | ASN Update Bot | Added |
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