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MODULE 6. MATERIALS AND HARDWARE

Annex III (Part-66) · Regulation (EU) No 1321/2014 · EAR revision 2 Sep 2025

IRImplementing rule

MODULE 6. MATERIALS AND HARDWARE

MODULE 6. MATERIALS AND HARDWARELEVEL
AB1 B3B2 B2L
6.1 Aircraft materials — ferrous
(a) Alloy steels used in aircraft;121
(b) Testing of ferrous materials;—11
(c) Repair and inspection procedures.—21
6.2 Aircraft materials — non-ferrous
(a) Characteristics;121
(b) Testing of non-ferrous materials;—11
(c) Repair and inspection procedures.—21
6.3 Aircraft materials – composite and non-metallic
6.3.1 Composite and non-metallic other than wood and fabric
(a) Characteristics;122
(b) Detection of defects12—
(c) Repairs and inspection procedures.—21
6.3.2 Wooden structures11—
6.3.3 Fabric covering—1—
6.4 Corrosion
(a) Chemical fundamentals;111
(b) Types of corrosion.232
6.5 Fasteners
6.5.1 Screw threads222
6.5.2 Bolts, studs and screws222
6.5.3 Locking devices222
6.5.4 Aircraft rivets121
6.6 Pipes and unions
(a) Identification;222
(b) Standard unions.221
6.7 Springs—21
6.8 Bearings122
6.9 Transmissions122
6.10 Control cables121
6.11 Electrical cables and connectors122

IR — Regulation (EU) No 1321/2014 · Regulation (EU) 2023/989 · Continuing Airworthiness Easy Access Rules · EAR revision 2 Sep 2025

All rules in APPENDICES TO ANNEX III (Part-66)

Consolidated from the EASA Easy Access Rules (revision 2 Sep 2025, extracted 17 Aug 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.

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