Airworthiness Directive · Amendment 39-18850 · Fuel
Gulfstream Aerospace Corporation Airplanes
This AD applies to all Gulfstream Aerospace Corporation Model GV and GV-SP airplanes, certificated in any category.
We are superseding Airworthiness Directive (AD) 2013-22-19 for all Gulfstream Aerospace Corporation Model GV and GV-SP airplanes. AD 2013-22-19 required inspecting to determine if fuel boost pumps having a certain part number were installed, replacing the fuel boost pumps having a certain part number, and revising the airplane maintenance program to include revised Instructions for Continued Airworthiness. This new AD reduces the compliance time for revising the airplane maintenance or inspection program. This AD was prompted by reports of two independent types of failure of the fuel boost pump with overheat damage found on the internal components and external housing on one of the failure types, and fuel leakage on the other. We are issuing this AD to address the unsafe condition on these products.
This paragraph restates the actions required by paragraph (g) of AD 2013-22-19, with revised service information. Within 36 months after January 7, 2014 (the effective date of AD 2013-22-19), inspect the fuel boost pumps to determine whether Gulfstream part number (P/N) 1159SCP500-5 is installed, in accordance with the Accomplishment Instructions of the applicable service information identified in paragraphs (g)(1), (g)(2), and (g)(3) of this AD; and Triumph Aerostructures Service Bulletin SB-TAGV/GVSP-28-JG0162, dated August 30, 2011, and GE Service Bulletin 31760-28-100, dated February 15, 2011. A review of airplane maintenance records is acceptable in lieu of this inspection if the part number of the fuel boost pumps can be conclusively determined from that review.
(1) For Model GV airplanes: Gulfstream V Customer Bulletin 197, dated April 11, 2012.
(2) For Model GV-SP airplanes designated as G500: Gulfstream G500 Customer Bulletin 122, dated April 11, 2012.
(3) For Model GV-SP airplanes designated as G550: Gulfstream G550 Customer Bulletin 122, dated April 11, 2012.
This paragraph restates the actions required by paragraph (h) of AD 2013-22-19, with revised service information. If the inspection required by paragraph (g) of this AD reveals a fuel boost pump with Gulfstream P/N 1159SCP500-5: Within 36 months after January 7, 2014 (the effective date of AD 2013-22-19), replace the fuel boost pump with a serviceable pump having Gulfstream P/N 1159SCP500-7, in accordance with the applicable service information identified in paragraphs (h)(1), (h)(2), and (h)(3) of this AD; and Triumph Aerostructures Service Bulletin SB-TAGV/GVSP-28-JG0162, dated August 30, 2011, and GE Service Bulletin 31760-28-100, dated February 15, 2011.
(1) For Model GV airplanes: Gulfstream V Customer Bulletin 197, dated April 11, 2012.
(2) For Model GV-SP airplanes designated as G500: Gulfstream G500 Customer Bulletin 122, dated April 11, 2012.
(3) For Model GV-SP airplanes designated as G550: Gulfstream G550 Customer Bulletin 122, dated April 11, 2012.
Within 30 days after the effective date of this AD, revise the airplane maintenance or inspection program, as applicable, to include the fuel leak check inspection of the fuel boost pumps specified in the applicable task identified in paragraph (j) of this AD.
(1) For airplanes on which fuel boost pump Gulfstream P/N 1159SCP500-5 has been replaced in accordance with paragraph (h) of this AD: The initial compliance time for the leak check inspection specified in the applicable task identified in paragraph (j) of this AD is within 550 flight hours after doing the replacement specified in paragraph (h) of this AD, or within 30 days after the effective date of this AD, whichever occurs later.
(2) For airplanes on which the inspection required by paragraph (g) of this AD reveals that a fuel boost pump with Gulfstream P/N 1159SCP500-7 has been installed: The initial compliance time for the leak check inspection specified in the applicable task identified in paragraph (j) of this AD, is at the later of the times specified in paragraphs (i)(2)(i) and (i)(2)(ii) of this AD.
(i) Within 550 flight hours after the installation of the P/N 1159SCP500-7 pump; except if 550 flight hours have accumulated since installation of the P/N 1159SCP500-7 pump and an initial leak check of the pump has not been accomplished, the compliance time is within 50 flight hours after doing the inspection required by paragraph (g) of this AD.
(ii) Within 30 days after the effective date of this AD.
Use the applicable service information specified in paragraph (j)(1), (j)(2), or (j)(3) of this AD, as applicable, to revise the airplane maintenance or inspection program, as applicable, as required by paragraph (i) of this AD.
(1) For Model GV airplanes: Use table 12, Certification Maintenance Requirements (CMR), in section 05-10-10, Airworthiness Limitations, of chapter 05, Time Limits/Maintenance Checks; and task 28-26-01, Fuel Boost Pumps—Fuel Leak Check, of section 28-26-01, Fuel Boost Pumps—Inspection/Check, of chapter 28, Fuel; of the Gulfstream V Maintenance Manual, Revision 44, dated June 15, 2016.
(2) For Model GV-SP airplanes designated as G500: Use task 28-26-01, Fuel Boost Pumps—Fuel Leak Check, in table 12, Certification Maintenance Requirements (CMR), in section 05-10-10, Airworthiness Limitations, of chapter 05, Time Limits/Maintenance Checks; and task 28-26-01, Fuel Boost Pumps—Fuel Leak Check, of section 28-26-01, Fuel Boost Pumps—Inspection/Check, of chapter 28, Fuel; of the Gulfstream G500 Maintenance Manual, Revision 25, dated June 15, 2016.
(3) For Model GV-SP airplanes designated as G550: Use task 28-26-01, Fuel Boost Pumps—Fuel Leak Check, in table 12, Certification Maintenance Requirements (CMR), in section 05-10-10, Airworthiness Limitations, of chapter 05, Time Limits/Maintenance Checks; and task 28-26-01, Fuel Boost Pumps—Fuel Leak Check, of section 28-26-01, Fuel Boost Pumps—Inspection/Check, of chapter 28, Fuel; of the Gulfstream G550 Maintenance Manual, Revision 25, dated June 15, 2016.
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.
Aircraft
