Hydraulic Power – Ground Service Manifold Manual Valve Attachment Bolts – Replacement
Superseded. Comply with 2020-0093, which replaces this document.
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected Airbus A330 and A340 aircraft must replace the four manual valve attachment bolts before exceeding 10,000 flight cycles or within 1,300 flight hours after 3 January 2020, whichever is later, and repeat this replacement every 10,000 flight cycles. Installation of affected parts is restricted unless bolts are new and replaced as required. Alternatively, operators can perform the terminating modification as per Airbus Service Bulletins A330-29-3104 or A340-29-4080.
Summary
EASA Airworthiness Directive 2019-0314 is an airworthiness directive addressing Airbus A330 and A340 aeroplanes. It mandates the replacement of attachment bolts on the ground service manifold manual valve to prevent hydraulic system failures. The directive applies to specific Airbus A330 and A340 models with affected ground service manifold parts.
What changed
This directive introduces a requirement for repetitive replacement of the four bolts attaching the manual valve of affected ground service manifold units. It also prohibits installation of affected parts on certain aircraft unless the bolts are new and replaced accordingly. Additionally, it provides a terminating action through specific Airbus service bulletins that modify the affected parts.
Why it matters
This directive is critical for maintaining hydraulic system integrity on affected Airbus A330 and A340 aircraft, preventing potential loss of hydraulic systems and associated control issues. Compliance ensures continued airworthiness and safety, reducing the risk of in-flight hydraulic failures and protecting maintenance personnel. Operators and maintenance organizations must track and perform bolt replacements to avoid operational disruptions and regulatory non-compliance.
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