Accident Grob G103 Twin Astir N153SS,
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ASN Wikibase Occurrence # 69908
 
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Date:Saturday 4 September 1993
Time:12:30 LT
Type:Silhouette image of generic gr13 model; specific model in this crash may look slightly different    
Grob G103 Twin Astir
Owner/operator:Silvercreek Aviation, Ltd.
Registration: N153SS
MSN: 3094
Total airframe hrs:208 hours
Engine model:Lycoming%20O-320-D2J
Fatalities:Fatalities: 0 / Occupants: 2
Aircraft damage: Substantial
Category:Accident
Location:New Douglas, IL -   United States of America
Phase: Take off
Nature:Training
Departure airport:(NONE)
Destination airport:(NONE)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
THE DUAL INSTRUCTIONAL GLIDER FLIGHT WAS BEING WINCH LAUNCHED. THE INSTRUCTOR REPORTED THERE WAS AN APPARENT CABLE BREAK, WHEN THE GLIDER WAS APPROXIMATELY 20 FEET AGL. THE STUDENT PILOT INITIALLY LOWERED THE NOSE, THEN RETURNED TO A CLIMB ATTITUDE. THE INSTRUCTOR TOOK CONTROL OF THE GLIDER, AND INITIATED A LANDING. THE LANDING WAS HARD AND THE GLIDER SUSTAINED SUBSTANTIAL DAMAGE. THE DOUBLE RING ON THE GLIDER TOW ATTACHMENT POINT WAS FOUND SEPARATED.

Probable Cause: FAILURE OF THE GLIDER TOW ATTACHMENT. FACTORS RELATED TO THE ACCIDENT WERE THE IMPROPER EMERGENCY PROCEDURE BY THE STUDENT, AND THE FLIGHT INSTRUCTOR'S DELAYED REMEDIAL ACTION..

Accident investigation:
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Investigating agency: NTSB
Report number: CHI93LA353
Status: Investigation completed
Duration: 1 year
Download report: Final report

Sources:

NTSB CHI93LA353

History of this aircraft

Other occurrences involving this aircraft
4 August 2005 N153SS Private 1 Driggs, ID sub

Location

Revision history:

Date/timeContributorUpdates
07-Nov-2009 00:48 DColclasure Added
21-Dec-2016 19:25 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
10-Apr-2024 11:24 ASN Update Bot Updated [Time, Cn, Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative, Category, Accident report]

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