DOCUMENT NUMBER:
L500-912.820 ISSUE JUL 20, 2016
AMENDMENT: 00
DATE:
CHAPTERPAGE 77
MAINTENANCE MANUAL STEMME S12
7.2 COCKPIT
Description: See section 3.2
Lubrication: See section 6.5
7.2.1 CANOPY
7.2.1.1 CONDITION AND FUNCTION
• Check canopy for scratches and cracks, especially in the area of the clear vision / vent win-
dows. Small cracks may be stop-drilled, long cracks must be repaired. (max. 200 mm length.)
• Check function and condition of the sliding window.
• Check canopy locks for smooth operation, clean bolts and bushings and observe section
6.5 Lubrication.
• Check equal and simultaneous opening of both lateral locking levers. If necessary adjust
cable tension so that both levers open completely and simultaneously.
• Check smooth function of lateral gas springs and whether they are able to balance the
canopy weight.
7.2.1.2 TEST OF CANOPY EMERGENCY JETTISON
Carry out jettisoning procedure as adopted from the instructions in the S12 Aircraft Flight Manual
• Detach lateral gas springs from the canopy frame and remove gas springs from cockpit.
• Support the canopy by two assistants standing to the right and to the left of the cockpit.
• Perform jettisoning procedure according to the S12 Aircraft Flight Manual.
NOTICE
The canopy must be supported by two assistants standing to the right and to the left at the front
of the aircraft.
• Check force of emergency release gas spring.
Force of Gas Spring Compressed 150 ± 30 N / 34 ± 7 lbf
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