Airworthiness directives › 2022-12-03
AD 2022-12-03 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.) airplanes, certificated in any category, as identified in paragraphs (c)(1) through (3) of this AD. (1) Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes equipped with inertial reference system (IRS) part number (P/N) 465020-0400-0400, 465020-0400-0401, 465020-0400-0402, or 465020-0400-0403. (2) Model CL-600-2C10 (Regional Jet Series 700, 701 & 702) airplanes, Model CL-600-2C11 (Regional Jet Series 550) airplanes, Model CL-600-2D15 (Regional Jet Series 705) airplanes, and Model CL-600-2D24 (Regional Jet Series 900) airplanes, equipped with IRS P/N 465020-0400-0401, 465020-0400-0402 or 465020-0400-0403. (3) Model CL-600-2E25 (Regional Jet Series 1000) airplanes, equipped with IRS P/N 465020-0400-0402 or 465020-0400-0403.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Within 30 days after the effective date of this AD: Revise the existing AFM to incorporate the information specified in Section 05-15—Instrument Systems, Chapter 5, ABNORMAL PROCEDURES, of the applicable AFM identified in figure 1 to paragraph (g) of this AD. ER29SE22.001
Unsafe condition
This AD was prompted by reports of displayed headings changing from MAG to TRU with no pilot action, which may result in misleading heading information on both primary function displays (PFDs) and multi-function displays (MFDs), and misleading course information on flight management systems (FMSs). The FAA is issuing this AD to prevent operation outside the terrain and obstacle protection provided in instrument procedure and route designs, which could result in reduced operational safety margins.
Affected ADs
None.
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