Airworthiness directives › 2024-14-01
AD 2024-14-01 Airworthiness Directives; MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.) Airplanes
Applicability*9
This AD applies to MHI RJ Aviation ULC (Type Certificate previously held by Bombardier, Inc.) Model CL-600-2D15 (Regional Jet Series 705) and CL-600-2D24 (Regional Jet Series 900) airplanes, certificated in any category, as identified in Transport Canada AD CF-2023-75, dated November 28, 2023 (Transport Canada AD CF-2023-75).
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Except as specified in paragraph (h) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, Transport Canada AD CF-2023-75.
Unsafe condition
This AD was prompted by a report that torque wrenches used during production installation of bulkhead fittings on the oxygen lines of the flightcrew oxygen mask stowage boxes and adapter fitting on the oxygen pressure gauge were out of calibration, which resulted in a higher torque level setting than required. The FAA is issuing this AD to address this over-torque, which could cause damage to the oxygen line fittings. The unsafe condition, if not addressed, could result in oxygen leakage before being annunciated and result in lack of oxygen to the flightcrew when needed.
Affected ADs
None.
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