Sub-chapters

• 51-00 - General
• 51-01 - Aircraft Structures
• 51-02 - Balloon/dirigible Reports
• 51-10 - Investigation, Cleanup and Aerodynamic Smoothness
• 51-20 - Processes
• 51-30 - Materials
• 51-40 - Fasteners
• 51-50 - Support Of Airplane For Repair and Alignment
• 51-60 - Control-surface Balancing
• 51-70 - Repairs
• 51-80 - Electrical Bonding