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Yak-50: Service Bulletins |
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| The full list contains above a hundred entries, in PDF format (Adobe Acrobat). The spar reinforcment was introduced as N16 with further development as N79. Without this last crucial modification, your aircraft is probably unsafe and can not be legally recognized operational. Needless to say, this modification is complex and can be duly performed only by a certified overhaul facility. | ||||||||||
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