Schedule I Available Combinations(1) REMIC Securities MX Securities Class Original Class Principal Balance or Class Notional Balance Related MX Class Maximum Original Class Principal Balance or Class Notional Balance(2) Principal Type(3) Interest Rate Interest Type(3) CUSIP Number Final Distribution Date(4) Security Group 2 Combination 1(7) FA $70,446,792 MD $  83,255,300 PAC 4.00% FIX 38374LLH2         September 2030 OA 12,808,508 ME 83,255,300 PAC 4.25 FIX 38374LLJ8          September 2030 SA 70,446,792 MG 83,255,300 PAC 4.50 FIX 38374LLK5         September 2030 MH 83,255,300 PAC 4.75 FIX 38374LLL3         September 2030 MI 22,705,990 NTL (PAC) 5.50 FIX/IO     38374LLQ2         September 2030 MJ 83,255,300 PAC 5.00 FIX 38374LLM1        September 2030 MK 83,255,300 PAC 5.25 FIX 38374LLN9         September 2030 ML 83,255,300 PAC 5.50 FIX 38374LLP4         September 2030 Combination 2(7) FB $20,504,000 ND $  24,232,000 PAC 4.00% FIX 38374LLR0         September 2032 OB 3,728,000 NE 24,232,000 PAC 4.25 FIX 38374LLS8         September 2032 SB 20,504,000 NG 24,232,000 PAC 4.50 FIX 38374LLT6        September 2032 NH 24,232,000 PAC 4.75 FIX 38374LLU3        September 2032 NI 6,608,727 NTL (PAC) 5.50 FIX/IO     38374LLY5         September 2032 NJ 24,232,000 PAC 5.00 FIX 38374LLV1         September 2032 NK 24,232,000 PAC 5.25 FIX 38374LLW9        September 2032 NL 24,232,000 PAC 5.50 FIX 38374LLX7         September 2032 Combination 3(7) FJ $17,121,584 KB $  20,234,600 PAC 5.00% FIX 38374LMM0 June 2035 OJ 3,113,016 QD 20,234,600 PAC 4.00 FIX 38374LMH1 June 2035 SJ 17,121,584 QE 20,234,600 PAC 4.25 FIX 38374LMJ7 June 2035 QG 20,234,600 PAC 4.50 FIX 38374LMK4 June 2035 QH 20,234,600 PAC 4.75 FIX 38374LML2 June 2035 QI 5,518,527 NTL (PAC) 5.50 FIX/IO     38374LMQ1 June 2035 QK 20,234,600 PAC 5.25 FIX 38374LMN8 June 2035 QL 20,234,600 PAC 5.50 FIX 38374LMP3 June 2035 S-I-1