Airworthiness Directive · Amendment 39-21535 · Flight controls
Bombardier, Inc., Airplanes
Superseded. A later AD replaced this one: AD 2024-26-09. Comply with the one in force.
This AD applies to all Bombardier, Inc., Model BD-700-1A10 and BD-700-1A11 airplanes, certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for all Bombardier, Inc., Model BD-700-1A10 and BD-700-1A11 airplanes. This AD was prompted by reports indicating that the left- and right-hand elevator torque tube bearings were contaminated with sand and corrosion, restricting free rotation. This AD requires repetitive general visual inspections of the left- and right-hand elevator torque tube bearings for any sand, dust, or corrosion; repetitive functional tests of the elevator control system; and replacement of the elevator torque tube bearings if necessary. The FAA is issuing this AD to address the unsafe condition on these products.
Within 36 months from the effective date of this AD or within 63 months from the date of airplane manufacture, as identified on the identification plate of the airplane, whichever occurs later: Do a general visual inspection of the left- and right-hand elevator torque tube bearings for any sand, dust, or corrosion; perform a functional test of the elevator control system; and do all applicable corrective actions; in accordance with the Accomplishment Instructions of paragraphs 2.B., 2.C., and 2.D. of the applicable service information specified in figure 1 to paragraph (g) of this AD. Applicable corrective actions must be done before further flight. Repeat the general visual inspection and functional test thereafter at intervals not to exceed 63 months.
At the applicable time specified in paragraph (h)(1) or (2) of this AD, submit a report of all findings, positive and negative, of each of the first three inspections required by paragraph (g) of this AD. Submit the report to Bombardier, in accordance with the details specified in the applicable service information specified in figure 1 to paragraph (g) of this AD.
(1) If the inspection was done on or after the effective date of this AD: Submit the report within 30 days after the inspection.
(2) If the inspection was done before the effective date of this AD: Submit the report within 30 days after the effective date of this AD.
