Furnishings — Forward Lavatory Door Hinge Flexing
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected Bombardier DHC-8-400, -401, and -402 aircraft must modify the forward lavatory door hinge within 2000 flight hours or 12 months from the effective date of 21 March 2018, whichever occurs first. The modification must follow the instructions in Bombardier Service Bulletins 84-25-130 Revision B or 84-25-131 Revision B, or later approved revisions. Use of earlier revisions of these service bulletins does not comply with this directive.
Summary
Canadian Airworthiness Directive CF-2018-09 addresses the issue of forward lavatory door hinge flexing on Bombardier DHC-8-400, -401, and -402 aircraft models. This directive mandates modifications to the forward lavatory door hinge to ensure proper functioning of the cockpit door latch mechanism. The directive applies to aircraft with serial numbers listed in Bombardier Service Bulletins 84-25-130 Revision B and 84-25-131 Revision B.
What changed
This new Airworthiness Directive introduces a requirement to modify the forward lavatory door hinge on affected Bombardier DHC-8-400 series aircraft. The modification must be performed in accordance with the specified Bombardier Service Bulletins dated 9 January 2017 or later approved revisions. Previous revisions of these service bulletins do not satisfy the directive's requirements.
Why it matters
This directive is critical for maintaining the safety and proper operation of the cockpit door latch mechanism, which is essential for flight security and regulatory compliance. Operators and maintenance organizations must ensure timely compliance to avoid grounding or operational restrictions. Compliance also ensures adherence to Canadian Aviation Regulations concerning Airworthiness Directives.
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