Airworthiness Directive · Amendment 39-18672 · Flight controls
Gulfstream Aerospace Corporation Airplanes
This AD applies to all Gulfstream Aerospace Corporation Model G-1159, G-1159A, G-1159B, and G-IV airplanes, certificated in any category.
We are adopting a new airworthiness directive (AD) for all Gulfstream Aerospace Corporation Model G-1159, G-1159A, G-1159B, and G- IV airplanes. This AD requires revision of the maintenance or inspection program to establish the life limit of all elevator assemblies and skins on affected airplanes. This AD was prompted by the need to establish life limits for certain elevator assemblies and skins. We are issuing this AD to prevent failure of the elevator assembly and consequent loss of control of the airplane.
Within 30 days after the effective date of this AD, revise the maintenance or inspection program, as applicable, to incorporate the life limits identified in paragraphs (g)(1) through (g)(4) of this AD, as applicable. The initial compliance time to replace the elevator assembly and skins, as specified in the temporary revision (TR), is as specified in the applicable TR, or within 30 days after the effective date of this AD, or within 10 flight cycles after the effective date of this AD, whichever occurs latest.
(1) For Model G-1159 airplanes: Life limits for elevator skin part numbers 1159CS20002 and 1159SB30209 as specified in Gulfstream II Maintenance Manual TR 5-3, dated April 15, 2016.
(2) For Model G-1159B airplanes: Life limits for elevator part number 1159SB30209 as specified in Gulfstream IIB Maintenance Manual TR 5-3, dated April 15, 2016.
(3) For Model G-1159A airplanes: Life limit for elevator part number 1159SB30209 as specified in Gulfstream III Maintenance Manual TR 5-2, dated April 15, 2016.
(4) For Model G-IV airplanes: Life limit for elevator part number 1159SB40518 as specified in Gulfstream IV Maintenance Manual TR 5-7, dated April 29, 2016.
After the maintenance or inspection program has been revised as required by paragraph (g) of this AD, no alternative actions (e.g., inspections) or intervals may be used unless the actions or intervals are approved as an alternative method of compliance (AMOC) in accordance with the procedures specified in paragraph (j) of this AD.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
