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pdf Gfa ad 257 issue 2 Popular

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gfa ad 257 issue 2.pdf

Gfa ad 257 issue 2

ALL GROB TWINS SHOWN ABOVE ARE TO HAVE THE FRONT PILOT SHOULDER HARNESS CROSS OVER ANCHORAGE MODIFIED IAW GROB RECOMMENDATIONS EMBODIED IN THIS AD

Applicable to all Grob Twin Astir Gliders (Not G 103). Insecure attachment of the front pilots shoulder harness strap attachment to the fibreglass structure has been observed. Grob has changed the anchoring detail at the factory from serial number 3210 onward. Serial numbers 3223 and 3224 both modified at the factory. Issue 2 adds an Alternate Means Of Compliance IAW GFA Engineering Order MB19-2-1 to comply with the airworthiness directive.