Airworthiness directives › 2015-05-07
AD 2015-05-07 Airworthiness Directives; Bombardier, Inc. Airplanes
Applicability*9
This AD applies to Bombardier, Inc. Model CL-600-2B16 (CL-604 Variant) airplanes, certificated in any category, serial numbers 5301 and subsequent, equipped with horizontal stabilizer trim actuator (HSTA) part number (P/N) 604-92305-3 (vendor P/N 8454-1) or P/N 604-92305-5 (vendor P/N 8454-2).
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
This paragraph restates the requirements of paragraph (g) of AD 2015-02-06, Amendment 39-18073 (80 FR 5017, January 30, 2015), with no changes. Within 30 days after March 6, 2015 (the effective date of AD 2015-02-06: Revise the Normal Procedures section of the applicable Bombardier AFM to include the information in the applicable temporary revision (TR) specified in paragraph (g)(1) or (g)(2) of this AD. The TRs introduce revised procedures for the stabilizer trim system check. Operate the airplane according to the limitations and procedures in the applicable TR. The revision may be done by inserting a copy of the applicable TR specified in paragraph (g)(1) or (g)(2) of this AD into the AFM. When the TR has been included in the general revisions of the AFM, the general revisions may be inserted into the AFM, provided the relevant information in the general revision is identical to that in the applicable TR, and the TR may be removed. (1) Bombardier Temporary Revision (TR) 604/37, dated May 21, 2013, to the Bombardier Challenger CL-604 Airplane Flight Manual, PSP 604-1. (2) Bombardier TR 605/18, dated May 21, 2013, to the Bombardier Challenger CL-605 Airplane Flight Manual, PSP 605-1.
Unsafe condition
This AD was prompted by the discovery of three typographical errors in AD 2015-02-06. We are issuing this AD to detect and correct loose spur gear bolts on the HSTA, which, if combined with the failure of the primary load path, could lead to failure of the HSTA and subsequent loss of the airplane.
Affected ADs
This AD replaces AD 2015-02-06, Amendment 39-18073 (80 FR 5017, January 30, 2015).
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