EASA SIB 2018-13: Airbus Helicopters with Single Hydraulic Power System — Hydraulic Emergency Procedure and Hydraulic Failure Training

What to do

Training organizations should review the Airbus Helicopters training video and risk assessments related to hydraulic failure procedures. National Airworthiness Authorities are advised to consider the updated RFM changes and training video when approving or renewing training programs. Instructor pilots and trainees should familiarize themselves with the revised procedures and use qualified full flight simulators or equivalent training devices when available. No mandatory compliance deadlines are specified.

Summary

EASA Safety Information Bulletin No. 2018-13 is an airworthiness bulletin addressing Airbus Helicopters equipped with a single hydraulic power system, specifically models AS 350 B, AS 350 BA, AS 350 BB, AS 350 B1, AS 350 B2, AS 350 B3, AS 350 D, and AS 355 E. The bulletin provides guidance on hydraulic emergency procedures and hydraulic failure training to improve safety during training operations. It highlights recent incidents related to hydraulic failure training and offers updated procedures and training materials.

What changed

The bulletin introduces a training video developed by Airbus Helicopters to assist instructor pilots and trainees in understanding hydraulic failure procedures. It also announces revisions to Rotorcraft Flight Manual Supplement 7 and Section 3 of the basic RFM for the AS 350 B3e model, which have been approved by EASA. These changes aim to enhance pilot awareness of risks and ensure better compliance with operational limitations, with plans to update other applicable models progressively.

Why it matters

This bulletin is important because previous incidents during hydraulic failure training have resulted from loss of control due to misunderstanding or non-compliance with procedures. By improving training materials and updating manuals, operators and training organizations can reduce the risk of accidents during hydraulic failure scenarios. It supports safer training practices and helps maintain regulatory compliance without imposing mandatory airworthiness directives.