Wings — Missing or Under Torqued Fasteners on Slat 2 Cove Rib 6 Bracket
- Published
- Effective
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of Bombardier BD-700-2A12 aircraft with serial numbers 70006 through 70089 and 70091 must inspect the slat 2 cove rib 6 brackets on both sides within 48 months from 16 September 2025. They must verify all fasteners are installed and properly torqued, installing and torquing new fasteners if any are missing. Compliance must follow Bombardier Service Bulletin 700-57-7530 or later approved revisions.
Summary
Canadian Airworthiness Directive CF-2025-46 addresses missing or under torqued fasteners on the slat 2 cove rib 6 bracket of Bombardier Inc. model BD-700-2A12 aeroplanes, serial numbers 70006 through 70089 and 70091. This directive mandates inspection and correction of fasteners on both left-hand and right-hand side brackets to ensure structural integrity. The directive is effective from 16 September 2025.
What changed
CF-2025-46 introduces a new requirement for inspecting and rectifying fasteners on the slat 2 cove rib 6 bracket of affected Bombardier BD-700-2A12 aircraft. It mandates checking for missing or under torqued fasteners and correcting any deficiencies within 48 months of the effective date. This is a new regulation addressing a previously unmonitored maintenance step.
Why it matters
This directive is critical for maintaining the structural safety of the slat 2 assembly on affected Bombardier aircraft. Missing or improperly torqued fasteners can reduce load carrying capability and structural redundancy, potentially compromising flight safety. Operators and maintenance teams must comply to prevent possible structural failures and ensure continued airworthiness.
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