Airworthiness directives › 2015-02-26
AD 2015-02-26 Airworthiness Directives; The Boeing Company Airplanes
Models named: 737-600, -700, -700C, -800, -900 series. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to the airplanes identified in paragraphs (c)(1) and (c)(2) of this AD, certificated in any category. (1) The Boeing Company Model 737-100, -200, -200C, -300,—400, and -500 series airplanes, as identified in Boeing Special Attention Service Bulletin 737-53-1260, Revision 1, dated May 23, 2013. (2) The Boeing Company Model 737-600, -700, -700C, -800, and -900 series airplanes, as identified in Boeing Service Bulletin 737-53-1244, Revision 5, dated July 27, 2011.
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 2013-24-13, Amendment 39-17687 (78 FR 72558, December 3, 2013), with no changes. Within 60 months after January 7, 2014 (the effective date of AD 2013-24-13), do the actions specified in paragraph (g)(1), (g)(2), (g)(3), or (g)(4) of this AD, as applicable. (1) For Model 737-600, -700, 700C, -800, and -900 series airplanes: Install new, improved pivot link assemblies, in accordance with the Accomplishment Instructions of Boeing Service Bulletin 737-53-1244, Revision 5, dated July 27, 2011. (2) For airplanes in Groups 1, 2, 3, and 4, as identified in Boeing Special Attention Service Bulletin 737-53-1260, Revision 1, dated May 23, 2013: Replace the seat track link assembly, in accordance with the Accomplishment Instructions of Boeing Special Attention Service Bulletin 737-53-1260, Revision 1, dated May 23, 2013. (3) For airplanes in Group 6, as identified in Boeing Special Attention Service Bulletin 737-53-1260, Revision 1, dated May 23, 2013: Inspect, change, or repair the seat track link assembly, as applicable, using a method approved in accordance with the procedures specified in paragraph (k) of this AD. (4) For airplanes in Group 5, as identified in Boeing Special Attention Service Bulletin 737-53-1260, Revision 1, dated May 23, 2013: Modify the existing seat track link assembly fastener, in accordance with the Accomplishment Instructions of Boeing Special Attention Service Bulletin 737-53-1260, Revision 1, dated May 23, 2013.
Unsafe condition
This AD was prompted by a report that a Boeing study found that the seat track attachment of body station 520 flexible joint is structurally deficient in resisting a 9g forward emergency load condition in certain seating configurations. We are issuing this AD to prevent seat detachment in an emergency landing, which could cause injury to occupants of the passenger compartment and affect emergency egress.
Affected ADs
This AD replaces AD 2013-24-13, Amendment 39-17687 (78 FR 72558, December 3, 2013).
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