STEMME S12, Maintenance Manual

Page: 162 / 290

DOCUMENT NUMBER:
L500-912.820 ISSUE JUL 20, 2016
AMENDMENT: 00
DATE: --
CHAPTER- PAGE 7-4
MAINTENANCE MANUAL STEMME S12
RENEWAL OF LOCKING SPRING OF NOSE-CONE HANDLE
• Disassemble nose-cone operation.
• Change both locking springs and reassemble.
ADJUSTMENT OF ENGINE MASTER SWITCH
• Remove left and right coverings of instrument panel.
• Re-bend electrical contacts or change if necessary.
7.1.2.4 CENTER FUSELAGE
• Check the steel frame for damages. Repair damage of the paint and remove corrosion. If
damage from chafing has occurred, determine and eliminate the cause of chafing.
• Check parts of the frame near to the force transmitting fittings (forward fuselage, tail
boom, wings, landing gear), especially the welding seams, for cracks.
• Check the bolt connections of forward fuselage and tail boom to steel frame for tight
connection.
• Check condition of tail boom composite structure close to the force transmission points.
• Check condition of upper and lower attachment points “framework to forward fuselage”.
• Check condition of force transmission points in the front fuselage composite structure
(cracks) and bonding of upper shear sleeves for tight fit.
Tightening Torques: See section »6.8«
NOTICE
Original paint of steel frame has got a defined brittleness by design. It facilitates deflection of
cracks.
7.1.3 EMPENNAGE
Description: See section »3.1.3«
Lubrication: See section »6.5«
7.1.3.1 GENERAL CONDITION
• Check surface of vertical and horizontal tail (fins and stabilizer/rudder) for abnormal con-
dition or cracks, especially near force transmission points (fittings, control links, hinges).
• Check condition and attachment of gap sealing / zigzag (turbulator) tape.
See also section »6.6« and Annex A »Small Repairs of Composite Materials«