Airworthiness Directive · Amendment 39-9784 · Short Brothers PLC Airplanes
Short Brothers PLC Airplanes
This AD applies to Short Brothers PLC SD3-30, SD3-60, SD3-60 SHERPA, SD3-SHERPA.
The models as the FAA's AD index lists them. The serial ranges, installed parts and exceptions are in the AD itself: read it at the FAA.
This amendment adopts a new airworthiness directive (AD), applicable to all Shorts Model SD3-30, -60, and -SHERPA series airplanes, that requires a visual inspection to detect signs of exfoliation corrosion on the brackets of the flap hydraulic units, and rework or replacement of corroded brackets. This amendment is prompted by a report that exfoliation corrosion was found on the brackets of the flap hydraulic units. The actions specified by this AD are intended to prevent such corrosion, and consequent reduced structural integrity of the brackets of the flap hydraulic units, which could result in the loss of the flap control and consequent reduced controllability of the airplane.
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.
