DATA Substantiate BOEING 727-31 Interior Modification on N5057, Serial Final Apgroval of the Modification will bepade by FM. No. 20115 ONLY. APPLICARLE AtOuisawas (Nat spat,* ...ow.) CAR 4b.202. 4b.301, 4b.306, 4b.260, 4b.358 and 4.101 CERTIFICATION • Thar ..lolly of mamma oda P.n 1ST km mad by anafte