Airworthiness Directive · Amendment 39-22887 · Wings
Bombardier, Inc., Airplanes
This AD applies to Bombardier, Inc., Model BD-700-1A10 and BD-700-1A11 airplanes, certificated in any category, serial numbers 9861, 9872, 60001 through 60004 inclusive, 60006 through 60023 inclusive, 60025 through 60029 inclusive, 60031, 60033 through 60036 inclusive, 60038 through 60042 inclusive, 60044, 60046 through 60048 inclusive, 60050 through 60055 inclusive, 60058 through 60060 inclusive, 60062 through 60067 inclusive, 60069 through 60071 inclusive, 60073 through 60086 inclusive, and 60088 through 60101 inclusive.
The FAA is adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model BD-700-1A10 and BD-700-1A11 airplanes. This AD was prompted by reports of missing or damaged inboard flap seal plate assemblies. This AD requires repetitive inspections for cracks of the attaching angles of the inboard flap seal plates and replacement. The FAA is issuing this AD to address the unsafe condition on these products.
At the applicable time specified in figure 1 to paragraph (g) of this AD, perform a detailed inspection for cracks of the attaching angles of the inboard flap seal plates, in accordance with Section 2.B. (Part A) of the Accomplishment Instructions of Bombardier Service Bulletin 700-27-5509 or 700-27-6509, both Revision 01, both dated May 5, 2023, as applicable, except do corrective actions as specified in paragraph (h) of this AD.
| Total flight hours as of the effective date of this AD | Compliance time after the effective date of this AD |
|---|---|
| Less than or equal to 750 | Within 250 flight hours. |
| More than 750 | Within 100 flight hours. |
(1) If no crack is found during any inspection required by paragraph (g) of this AD, repeat the inspection thereafter at intervals not to exceed 250 flight hours, except as specified in paragraph (i) of this AD.
(2) If any crack is found during any inspection required by paragraph (g) of this AD, do the actions specified in paragraph (i) of this AD before further flight.
Unless already done as specified in paragraph (h)(2) of this AD: Within 12 months after the effective date of this AD, do the actions specified in paragraphs (i)(1) through (3) of this AD, in accordance with Section 2.C. (Part B) of the Accomplishment Instructions of Bombardier Service Bulletin 700-27-5509 or 700-27-6509, both Revision 01, both dated May 5, 2023, as applicable.
(1) Replace the inboard flap seal plates with redesigned plates.
(2) Do a detailed visual inspection for damage of the flap inboard closing ribs and trailing edges.
(3) Do an eddy current or liquid penetrant inspection for cracks running out of the flap inboard closing rib holes common to the outboard stiffener and angle.
If any crack or other damage is found during any inspection required by paragraph (i)(2) or (3) of this AD, repair before further flight using a method approved by the Manager, International Validation Branch, FAA; or Transport Canada; or Bombardier, Inc.'s Transport Canada Design Approval Organization (DAO). If the method is approved by the DAO, the approval must include the DAO-authorized signature.
Accomplishment of the actions required by paragraph (i) of this AD terminates the requirements of paragraph (h)(1) of this AD.
