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ASN Wikibase Occurrence # 43144
Last updated: 18 November 2021
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Date:15-OCT-1988
Time:13:30
Type:Arlington SISU 1A
Owner/operator:private
Registration: N252JB
MSN: 105
Fatalities:Fatalities: 1 / Occupants: 1
Other fatalities:0
Aircraft damage: Substantial
Category:Accident
Location:Borrego Springs, CA -   United States of America
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Nature:Private
Departure airport:Borrego Spring , CA (L08)
Destination airport:
Investigating agency: NTSB
Narrative:
WHILE THERMAL SOARING, THE ACFT ENTERED A STEEP SPINNING DESCENT, THREE TURNS TO THE RIGHT FOLLOWED BY TWO TURNS TO THE LEFT AND GROUND IMPACT IN A NEAR VERTICAL ATTITUDE. NO EVIDENCE WAS FOUND OF AIRCRAFT STRUCTURAL FAILURE OR CONTROL MALFUNCTION. THE PILOT'S PARTNER IN OWNERSHIP OF THE GLIDER AND LONG-TIME CLOSE FRIEND STATED THAT HE HAD INADVERTENTLY ENTERED A SPIN IN THE AIRCRAFT SEVERAL YEARS EARLIER. HE INDICATED THAT HE HAD TROUBLE RECOVERING FROM IT, SPEED BRAKES WERE INEFFECTIVE AND HE COULD NOT RECOVER FROM IT UNTIL FLAPS WERE RETRACTED AND THE CONTROL STICK WAS PUSHED FULL FORWARD. ALTHOUGH THE WRECKAGE WAS FOUND WITH THE SPEED BRAKES RETRACTED AND FLAPS EXTENDED ABOUT 10 DEGREES, BOTH SYSTEMS DISPLAYED SUBSTANTIAL DAMAGE AND IT COULD NOT BE DETERMINED WHAT THEIR PRE-IMPACT POSITIONS WERE. CAUSE:

Sources:

NTSB: http://www.ntsb.gov/ntsb/brief.asp?ev_id=20001213X27067


Revision history:

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

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