Airworthiness directives › 2019-20-08
AD 2019-20-08 Airworthiness Directives; Gulfstream Aerospace Corporation Airplanes
Models named: G-IV, GIV-X. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Gulfstream Aerospace Corporation Model G-IV airplanes, certificated in any category, serial numbers 1000 through 1535; and Model GIV-X airplanes, certificated in any category, serial numbers 4001 through 4363. Note 1 to paragraph (c) of this AD: Model G-IV airplanes are also referred to by the marketing designations G300 and G400. Model GIV-X airplanes are also referred to by the marketing designations G350 and G450.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Within 12 months after December 13, 2019 (the effective date of this AD), revise the ALS of your maintenance or inspection program ( e.g., maintenance manual) to incorporate the airworthiness limitations specified in Gulfstream Document No. GIV-GER-0008, Summary of Changes to the GIV Series and GIV-X Series Airworthiness Limitations, Revision D, dated August 20, 2018, as applicable to your model and serial number airplane.
Unsafe condition
This AD was prompted by a revision to the airworthiness limitations section (ALS) of the Model G-IV and Model GIV-X aircraft maintenance manuals based on fatigue and damage tolerance testing and updated analysis. The FAA is issuing this AD to detect and correct fatigue cracking of principal structural elements (PSEs). This unsafe condition, if unaddressed, could result in reduced structural integrity of a PSE or critical component and lead to loss of control of the airplane.
Affected ADs
None.
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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