TOMARK, s.r.o.
Airplane Maintenance Manual
Chapter 05 Inspection and Maintenance
Page 66 Issue: 04.APR 2016
The stall speed found in the tests should correlate to the stall speed
indicated in AFM.
05-50 Unscheduled Maintenance
In case of any event such as hard landing, structural overload, lighting
or propeller ground strike which warrants inspection or repair beyond
what is defined in this issue contact TOMARK.
05-50-01 Inspection after Spin-Event
The Viper SD-4 RTC is not approved for spinning. However if a spin-
event has occurred the following inspection must be performed prior
to the next flight.
This inspection can be performed as a pilot-owner inspection (Refer
to COMMISSION REGULATION (EC) No 2042/2003, M.A.803 Pilot-
owner authorization).
Inspection after Spin-Event
Check play in flap system (check in all flap positions and on both sides of
the aircraft).
No excessive play allowed (max. 3 mm movement of flap trailing edge).
Inspect rivet connections of torsion tube close to RH and LH fuselage
sidewall (use mirror).
Retract and extend flaps and inspect for smooth operation / inspect rivet
connections during operation
Inspect rivet connection at center bellcrank attachment (electric flap drive)
Inform in TOMARK in case of finding and request instructions.
Otherwise re-mount the seat.
Document the (pilot-owner) inspection after spin-event in aircraft logbook.
Perform Aircraft Geometry Check according to Chapter 05-50-02
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