FAA Proposes Stricter Checks for Gulfstream G150s
Published Date: 6/9/2026
Proposed Rule
Summary
If you own or work with Gulfstream G150 airplanes, the FAA wants you to update your maintenance plans with new safety rules. These changes make inspections tougher to keep the planes safer. You’ll need to act before July 24, 2026, and while it might cost some time and money, it’s all about flying safer and smarter!
Analyzed Economic Effects
5 provisions identified: 1 benefits, 4 costs, 0 mixed.
G150 operators must update maintenance programs
If you operate Gulfstream G150 airplanes, you must revise your maintenance or inspection program to incorporate new or more restrictive airworthiness limitations specified in CAAI AD ISR I-05-2025-10-1 and Section 05-10-10 (Gulfstream G150 Maintenance Manual Revision 30, dated September 15, 2025). These changes address fatigue damage in the horizontal stabilizer/elevator systems and the nose landing gear actuator-to-strut attachment pin.
Estimated affected fleet and per-operator costs
The FAA estimates this proposed AD would affect 82 U.S.-registered Gulfstream G150 airplanes. The FAA estimates the total cost per operator for the retained actions from AD 2025-15-04 is $7,650 (90 work-hours x $85/hour) and the total cost per operator for the new proposed actions is $7,650 (90 work-hours x $85/hour).
Initial inspection deadlines (90 days / 3 months)
The proposed AD sets initial compliance timing: for tasks in CAAI AD ISR I-32-24-10-01R1 the initial compliance is at the applicable 'discard' interval or within 3 months after September 10, 2025, whichever occurs later. For tasks in CAAI AD ISR I-05-2025-10-1, initial compliance is at the applicable initial inspection interval or within 90 days after the effective date of this AD, whichever occurs later.
Reporting burden: ~1 hour per response
Inspection reporting associated with this rule is subject to the Paperwork Reduction Act under OMB Control Number 2120-0056. Public reporting for this collection is estimated to take approximately 1 hour per response and all responses are mandatory.
FAA: no significant small-entity impact
The FAA certified that this proposed AD "would not have a significant economic impact, positive or negative, on a substantial number of small entities" under the Regulatory Flexibility Act.
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Key Dates
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