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AWO.B.CATIII.128 CS AWO.B.CATIII.128 Documentation required

All Weather Operations (CS-AWO) · CS-AWO · EAR revision 14 Aug 2026

IRImplementing rule

AWO.B.CATIII.128CS AWO.B.CATIII.128 Documentation required

Documentation providing the following information is required for certification:

- (a) A specification of the aeroplane and the airborne equipment. - (b) Evidence that the equipment and its installation comply with the applicable standards. - (c) A failure analysis and an assessment of system safety (see AMC 25.1309). - (d) A performance analysis demonstrating compliance with the performance criteria of CS AWO.B.CATIII.115, CS AWO.B.CATIII.116 and CS AWO.B.CATIII.117 (see CS AWO.A.ALS.106(b)). - (e) Flight test results including validation of any simulation. - (f) Limitations on the use of the system and crew procedures to be incorporated in the AFM; - (g) Evidence that the crew workload complies with CS 25.1523. - (h) Inspection and maintenance procedures shown to be necessary by the system safety assessment (see CS 25.1529).

[Issue: CS-AWO/2]

ED Decision 2022/007/R

SECTION 5 -AIRWORTHINESS CERTIFICATION OF AEROPLANES FOR OPERATIONAL CREDITS FOR VISUAL SEGMENT IN REDUCED RUNWAY VISUAL RANGE (RRVR)

IR · AWO.B.CATIII.128 — CS-AWO · CS-AWO Easy Access Rules · EAR revision 14 Aug 2026

All rules in SUBPART B -APPROACH AND LANDING SECTION 4 -AIRWORTHINESS CERTIFICATION OF AEROPLANES FOR OPERATIONS WITH DECISION HEIGHTS (DHs) BELOW 30 M (100 FT) OR NO DECISION HEIGHT (DH) -CATEGORY III (CAT III) OPERATIONS

Consolidated from the EASA Easy Access Rules (revision 14 Aug 2026, 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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