Instruments – Fuse Cover Attachment of Circuit Breaker Panel – Modification
- Published
- Effective
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must modify and reidentify the affected fuse cover parts according to the updated Airbus Helicopters Alert Service Bulletin within the specified compliance times: within 330 flight hours or 6 months for EC 130 B4 helicopters, and within 660 flight hours or 9 months for AS 350 B2 and B3 helicopters, all counted from 26 March 2026. After modification, installation of pre-modification affected parts is prohibited. Stakeholders should refer to the latest service bulletins for detailed instructions and coordinate with Airbus Helicopters or EASA for any alternative compliance methods.
Summary
EASA Airworthiness Directive 2026-0052R1 is a regulatory update addressing a safety issue in Airbus Helicopters AS 350 B2, AS 350 B3, and EC 130 B4 models. The directive mandates modification of the fuse cover attachment on the circuit breaker panel to prevent interference with the pilot pedal, which could impair yaw control. This AD applies to specific affected parts identified by part numbers and requires compliance with updated service bulletin instructions.
What changed
This revision updates the original AD 2026-0052 by incorporating Issue 02 of the Airbus Helicopters Alert Service Bulletin AS350-31-10-0002, which provides amended modification instructions for AS 350 helicopters. It extends the compliance time for AS 350 models and clarifies that no AS 350 helicopter has been modified under the original instructions. Additionally, administrative and editorial improvements were made to enhance clarity and compliance with current EASA standards.
Why it matters
This directive is critical for maintaining safe helicopter operation by eliminating the risk of partial pilot pedal blockage caused by a detached fuse cover. Operators and maintenance organizations must ensure timely modification to avoid reduced yaw control, which could lead to hazardous flight conditions. Compliance teams need to track the updated compliance times and revised service bulletin requirements to meet regulatory obligations and maintain airworthiness.
More for Airbus Helicopters AS 350
All 98- EASA AD 2026-0052R2Instruments – Fuse Cover Attachment of Circuit Breaker Panel – ModificationSep 24, 2026
- EASA AD 2023-0214R1Fuselage – Tail Rotor Drive Shaft / Rear Transmission Bearing Support – Inspections / ModificationSep 16, 2026
- EASA AD 2024-0144R1Tail Rotor Drive – Shaft-Line – Check / Measurement / ModificationSep 16, 2026
- EASA AD 2026-0146Equipment / Furnishings – Mechanical Dropping Control – InspectionJul 24, 2026
- EASA AD 2026-0132
Get the next one by email
New ADs and bulletins for these 5 aircraft types, summarized like this page, every Monday.