Airworthiness Directive · Amendment 39-18944 · Equipment/furnishings
The Boeing Company Airplanes
This AD applies to The Boeing Company Model 777-300ER series airplanes, certificated in any category, as identified in Boeing Alert Service Bulletin 777-25A0677, dated April 25, 2016.
We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 777-300ER series airplanes. This AD was prompted by a report that certain galley tripod mount assemblies were not connected to the tie rods in the overhead support structure. This AD requires an inspection of certain galleys for the presence of the hardware that connects the tripod mount assembly to the tie rods in the overhead support structure, and corrective actions if necessary. We are issuing this AD to address the unsafe condition on these products.
Within 12 months after the effective date of this AD: Do a detailed inspection of the area above the A2 and A3 galleys to make sure the hardware (i.e., pin assembly or bolt assembly) that connects the tripod mount assembly to the applicable T53 and T52 tie rods is installed, and do all applicable corrective actions, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 777-25A0677, dated April 25, 2016. Do all applicable corrective actions before further flight.
For the purposes of this AD, a detailed inspection is an intensive examination of a specific item, installation, or assembly to detect damage, failure, or irregularity. Available lighting is normally supplemented with a direct source of good lighting at an intensity deemed appropriate. Inspection aids such as mirror, magnifying lenses, etc., may be necessary. Surface cleaning and elaborate procedures may be required.
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.
