DOCUMENT NUMBER:
L500-912.820 ISSUE JUL 20, 2016
AMENDMENT: 00
DATE:
CHAPTERPAGE 73
MAINTENANCE MANUAL STEMME S12
7.1.2 FUSELAGE
Description: See section 3.1.2
Lubrication: See section 6.5
7.1.2.1 CRACKS AND STRUCTURAL DAMAGE
•
Check forward fuselage and the tail boom for cracks and abnormal surface (local buckling,
roughness, holes and delamination), especially at the connection points to the center steel
frame, along the adhesive bindings of the tail boom and at the vertical tail root.
• Check the lower sides of forward fuselage and tail boom for gravel strike damage. Deep
damage to the coating, which may allow water to penetrate into the composite structure,
should be repaired.
See also section 6.6 and Annex A Small Repairs of Composite Materials.
7.1.2.2 DRAINAGE HOLES
• Check holes for cleanness, clean if necessary.
Positions: See position plan in section 6.7
7.1.2.3 NOSECONE
• Check proper t of nose-cone on front fuselage.
• Check condition of composite structure, especially edge and bonding to nose-cone tube.
•
Check operating lever for proper locking in both, forward and rear locked position. The force
to unlock must be sucient to secure locking even under vibrations, ground and ight loads.
• Check condition and backlash of nose-cone sliding tube.
Allowable Backlash of Nose-cone: At the top, perpendicular to ight direction, 3 mm / 0.12 in.
NOSECONE HANDLE ADJUSTMENT
• Remove left and right coverings of instrument panel.
• Loosen forward connection of handle and nose-cone sliding tube.
• Loosen counter nut and adjust the eyebolt.
• Tighten nut to secure the eyebolt.
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