Zlin Aviation
Section 1
Maintenance Manual Aircraft Maintenance Manual
Issued: 01/02/2006
QAP-AMM-Rev02
Date of latest Revision: 23/01/2013
Page Number: 1-15
If there is any doubt a fastener has been under-torqued, the nut shall be backed off one
complete rotation (360°) maximum and retightened to the specified value; the bolt, screw or stud
must not be allowed to rotate.
Bolt Installation
Bolts should be installed with the head forward, upward, or outward to the extent possible. Bolts
typically are not installed with the head toward the rear, bottom, or inside except where clearance or
access issues require such installation, or when specifically directed to do so by manufacturer's
instructions.
AN Bolts Torque
See AC43.13.1B Table 7-1 and text for more information.
Circular Torque Pattern
Follow the indicated torque pattern when applicable (ex. Propeller)