Airworthiness directives › 2019-08-04
AD 2019-08-04 Airworthiness Directives; Bombardier, Inc., Airplanes
Applicability*9
This AD applies to Bombardier, Inc., Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes, certificated in any category, serial numbers 7002 through 8025 inclusive, 8030, and 8034.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
This paragraph restates the requirements of paragraph (i) of AD 2012-25-02, with minor changes. Except for the airplane having serial number 7002, within 60 days after January 16, 2013 (the effective date of AD 2012-25-02): Revise the maintenance program by incorporating the revised inspection requirements specified in airworthiness limitation section (AWL) 53-61-153 of Bombardier temporary revision (TR) 2B-2187, dated June 22, 2011, to Appendix B-Airworthiness Limitations, of Part 2 of the Bombardier CL-600-2B19 Maintenance Requirements Manual (MRM). The initial compliance times for the task are at the applicable time specified in paragraph (g)(1) or (g)(2) of this AD. (1) For airplanes on which the special detailed inspection specified in AWL 53-61-153 of Bombardier TR 2B-2187, dated June 22, 2011; or Canadair Regional Jet TR 2B-2109, dated October 13, 2005; has not been done as of January 16, 2013 (the effective date of AD 2012-25-02): The initial compliance time for AWL 53-61-153 is at the applicable time specified in paragraph (g)(1)(i) or (g)(1)(ii) of this AD. (i) For airplanes that have accumulated 10,500 total flight cycles or less as of January 16, 2013: Before the accumulation of 12,000 total flight cycles. (ii) For airplanes that have accumulated more than 10,500 total flight cycles as of January 16, 2013: Within 1,500 flight cycles after January 16, 2013 (the effective date of AD 2012-25-02). (2) For airplanes on which the special detailed inspection specified in AWL 53-61-153 of Bombardier TR 2B-2187, dated June 22, 2011; or Canadair Regional Jet TR 2B-2109, dated October 13, 2005; has been done as of January 16, 2013 (the effective date of AD 2012-25-02): The initial compliance time for AWL 53-61-153 is within 4,360 flight cycles after accomplishing the most recent special detailed inspection, or within 1,500 flight cycles after accomplishing the most recent detailed inspection as specified in AWL 53-61-153 of Canadair Regional Jet TR 2B-2109, dated October 13, 2005, whichever occurs later.
Unsafe condition
This AD was prompted by multiple reports of cracks on the forward face of the rear pressure bulkhead (RPB) web, and additional in-service crack findings that resulted in the development of a structural modification to the RPB. We are issuing this AD to address cracking in the RPB, which could result in reduced structural integrity and rapid decompression of the airplane.
Affected ADs
This AD replaces AD 2012-25-02, Amendment 39-17283 (77 FR 73902, December 12, 2012) (“AD 2012-25-02”).
Read the original on the Federal Register →
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1