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ASN Wikibase Occurrence # 70450
Last updated: 23 January 2021
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Date:11-DEC-2009
Time:09:45 UTC
Type:Silhouette image of generic YK52 model; specific model in this crash may look slightly different
Yakovlev Yak-52
Owner/operator:Flightime CC
Registration: ZU-YAC
C/n / msn: 811315
Fatalities:Fatalities: 0 / Occupants: 2
Other fatalities:0
Aircraft damage: Substantial
Location:Bisho Airport, Eastern Cape -   South Africa
Phase: Landing
Nature:Training
Departure airport:FABE (Bisho)
Destination airport:FABE (Bisho)
Narrative:
The aircraft was being used for advanced and aerobatic pilot training. After coming out of a loop a few thousand feet AGL, the elevator controls jammed and evidently only after applying significant power did the plane pull out of the loop at around 800 feet AGL. An expert landing was perfomed by the instructor under very difficult circumstances. The aircraft was brought in fast to reduce sink and the over the numbers speed was estimated as 220km/h During the hard landing the nose wheel broke off and the propeller struck the runway.

The engine caught fire and the aircraft suffered considerable damage. The Instructor and pupil were uninjured. During the subsequent inspection of the aircraft a co-owner found a rubber knob off one of the controls, that had gone missing some time ago, and which could not be located after an intensive search, had ended up getting wedged in the elevator controls.

Probable cause of the accident: An engine cowling lever knob had jammed the elevator bell crank, thereby restricting movement of the elevator control surface.

Sources:

1. South African CAA: http://209.203.9.244/resource%20center/accidents%20&%20incid/reports/2009/8720.pdf


Revision history:

Date/timeContributorUpdates
12-Dec-2009 12:28 Topaz Added
19-Sep-2010 07:21 TB Updated [Aircraft type]
08-Feb-2013 08:47 TB Updated [Source]
08-Aug-2016 16:05 Dr.John Smith Updated [Time, Source, Narrative]

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