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ASN Wikibase Occurrence # 40775
Last updated: 4 September 2020
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Date:09-DEC-1986
Time:15:30
Type:Silhouette image of generic H500 model; specific model in this crash may look slightly different
Hughes 369HS
Owner/operator:private
Registration: N8390F
C/n / msn: 860855S
Fatalities:Fatalities: 2 / Occupants: 2
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Category:Accident
Location:Zephyrhills, FL -   United States of America
Phase: Landing
Nature:Private
Departure airport:Tampa, FL
Destination airport:Jacksonville, FL
Investigating agency: NTSB
Narrative:
A WITNESS STATED THAT SHE HEARD THE ENG ON THE HELICOPTER QUIT. SHE LOOKED OUT HER WINDOW AND WATCHED THE HELICOPTER HIT THE GROUND, BOUNCE, HIT AGAIN, FLIP OVER AND THE TAIL BROKE OFF. THE HELICOPTER THEN BURST INTO FLAMES AND EXPLODED.EXAM OF THE ENG REVEALED THAT THE PC AIR FILTER ASSEMBLY WAS BROKEN AT THE FORWARD INLET SIDE OF THE FILTER BODY WHICH RESULTED IN THE LOSS OF PC AIR PRESSURE TO THE FUEL CONTROL.THIS CAUSED THE ENG POWER TO REDUCE TO FLIGHT IDLE. THE PC FILTER HOUSING BROKE DUE TO AN IMPROPER MODIFICATION TO THE FILTER BODY. CAUSE:

Sources:

NTSB: http://www.ntsb.gov/ntsb/brief.asp?ev_id=20001213X35388


Revision history:

Date/timeContributorUpdates
24-Oct-2008 10:30 ASN archive Added
21-Dec-2016 19:23 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]

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