@vilas
"why not your company seeks clarification from the manufacturer?"
They don't want to do some request they didn't discovered themselves!
I had such a very bad experience after I discovered a wrong N2 (MD83) in our FCOM, to use in case of UAS : missing 13% , Landing configuration, MLW, 3000ft... After two months of correction procedure question, using the appropriate form, without feedback from my company, our engineer sent a fax from his own, and quickly the manufacturer answered with thanks and congratulations. It was a storm for me, accused (!) to contact the manufacturer myself...
At that time more than 60 airlines "used" the wrong figure since 13 years. Happily no plane had such an UAS!
The company is afraid too to explain to the DGAC why they didn't see the mistake
