AA Aircraft

AA Aircraft. Means, as the context requires, (i) a Firm Aircraft, (ii) a Rights Aircraft, (iii) a Substitute Aircraft or (iv) any aircraft described in Section 2.2 of this Letter Agreement once price terms have been established for such aircraft pursuant to Section 8 of this Letter Agreement. The first three categories of aircraft in the preceding sentence are defined in Letter Agreements 6-1162-AKP-075, 6-1162-AKP-089, 6-1162-AKP-100, 6-1162-AKP-110 and 6-1162-TRW-0664 or as may be subsequently amended.