AIRCRAFT MAINTENANCE MANUAL
DFE-AMM-AR1
Rev. 1 – 07/24/2014
10-4
10.2.6. Recommended reading
Many useful information you can find in the document:
Acceptable Methods, Techniques, and Practices – Aircraft Inspections, Repair & Alternations
AC 43.13-1B, AC 43.13-2A
10.3. INSTRUCTIONS FOR AUTHORIZED MAINTENANCE, REPAIR OR ALTERATIONS
10.3.1. SKIN REPAIR
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Tools needed: metalworker tools, drills, riveting pliers
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Parts needed: sheet metal, rivets
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Type of maintenance: Line
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Level of Certification needed:
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Repairman (LS-M) or Mechanic (A&P) – both with the minimum level of certification to
perform heavy maintenance of SLSA in the U.S.
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FAA approved Part 145 Repair station
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Instructions:
1 - To prevent small cracks (max. 0.2 in (5 mm)) from spreading, drill a hole of 0.06 in (1.5
mm), diameter at the end of the crack
2 - Small holes (up to Ø 0.16 in (4 mm)) can be repaired by a "POP" rivets
More extensive skin damage is repaired by means of a patch. Per standard repair
procedures: Ref. AC 43.13-1B
Use a sheet of the same thickness as the repaired skin for the patch and frame.
A single row of rivets is used to rivet a small patch (patch area max. 7.75 sq in. 50 cm2). Use
a double row for greater patches. Paint the internal side of the patch and frame before riveting and then paint
the outside surface.
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Task proper accomplishment check: None