Airworthiness directives › 2013-15-11
AD 2013-15-11 Airworthiness Directives; The Boeing Company Airplanes
Models named: 727, 727C, 727-100, 727-100C, 727-200, 727-200F series. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to all The Boeing Company Model 727, 727C, 727-100, 727-100C, 727-200, and 727-200F series airplanes, certificated in any category.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Within 24 months after the effective date of this AD: Do a detailed inspection for cracking and corrosion of the left- and right-side chords of the fin closure rib, and do a HFEC inspection of the left- and right-side chords for cracking, in accordance with the Accomplishment Instructions of Boeing Special Attention Service Bulletin 727-55-0095, dated September 24, 2012. If any cracking or corrosion is found, before further flight, repair or replace the affected right- or left-side chord using a method approved in accordance with the procedures specified in paragraph (h) of this AD. Repeat the detailed inspection and HFEC inspection thereafter at intervals not to exceed 26 months.
Unsafe condition
This AD was prompted by a report of cracking in the left-side chord of the fin closure rib on the vertical stabilizer. We are issuing this AD to detect and correct cracking and corrosion in the left- and right-side chords of the fin closure rib, which could lead to widespread cracking in the chords that might weaken the fin closure rib structure, and result in loss of airplane control due to lack of horizontal stabilizer support.
Affected ADs
None.
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