Sometimes an aircraft, or component has an airworthiness concern that requires urgent attention. To achieve that, the Director issues an Emergency Airworthiness Directive (AD) notified directly to the registered operators of affected aircraft. Emergency ADs can be issued at any time, and are issued where compliance is required before further flight, or is less than 50 hours TIS, or 28 calendar days.
EASA AD 2023-0163 - AUSTRO E4 and E4P engines - Pistons - Oil Analysis [PDF 230 KB]
Effective: 1 September 2023
Applicability: E4 and E4P engines, all S/N listed in Table 1, 2, 3 and 4 of Austro Engine MSB MSB-E4-039 Revision 2, dated 26 July 2023.
These engines are known to be installed on, but not limited to, Diamond Aircraft Industries DA 40 NG, DA 42 NG, DA 42 M-NG and DA 62 aeroplanes.
EASA AD 2023-0159 Agusta A109 helicopters - Main Rotor Blade Tip Caps Inspection [PDF 196 KB]
Effective: 24 August 2023
Applicability: A109C, A109E, A109S and AW109SP helicopters, all S/N.
EASA Emergency AD 2023-0156-E Rotax 912 and 914 Certified Engines - Propeller Shaft [PDF 213 KB]
Effective: 04 Aug 2023
Applicability: Rotax 912 A, 912 F, 912 S and 912 iSc Sport (series) engines, all models, all S/N; and Rotax 914 F engines, all models, all S/N.
Effective: 02 Aug 2023
Applicability: Cameron fuel cylinders P/N CB2990 Issue A (Alugas) with S/N OC25001 to OC25202, and QI14001 to QI14496.
Note: P/N CB2990 Issue B (Alugas) cylinders are not affected by this AD
Effective: 03 Aug 2023
Applicability: AS 355 E, AS 355 F, AS 355 F1, AS 355 F2, AS 355 N and AS 355 NP helicopters, all S/N.
Effective: 24 July 2023
Applicability: Diamond DA 40, DA 40 D and DA 40 F aircraft, all S/N - NLG Leg Pivot Axle Inspection.
Effective: 14 June 2023
Applicability: Arcus M powered sailplanes, serial numbers (s/n) 215 to 269 inclusive; and Arcus T powered sailplanes, s/n 89 to 106 inclusive.
Effective: 18 May 2023
Applicability: AS 355 E, AS 355 F, AS 355 F1, AS 355 F2, AS 355 N and AS 355 NP helicopters, and all AS 350 B3 helicopters, except those helicopters that are embodied with modification (MOD) 073148 in production.
If you have any questions about this topic, use our contact form, or email certification@caa.govt.nz.
