Example of SIFL Adjustment


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  • Example of SIFL Adjustment

    [Methodology for determining change in operating expense per available seat-mile]

    Year ended September 1979 Trunks Locals Trunks plus locals Total passenger/cargo16
    Total operating expense1 (millions) $16,455 $2,522 $18,977 $19,384
    Less:
    All-cargo expenses2 269 269 269
    Belly offset3 952 153 1,105 1,153
    Nonscheduled4 141 46 187 205
    Transport related5 379 31 410 416
    Plus: Capitalized lease adjustment10 119 2 121 121
    Passenger operating expense 14,833 2,294 17,127 17,462
    Passenger fuel cost11 4,103 N.A.
    Scheduled service ASM's (mils.) 281,671 33,051 314,722 318,459
    Passenger nonfuel operating expense per ASM (dollars) .04138 N.A.
    Passenger fuel expense per ASM (dollars) .01304 N.A.
    Total passenger expense per ASM (dollars) .05442 .05483
    Year ended September 1978
    Total operating expense1 (millions) 14,081 2,033 16,114 16,448
    Less:
    All-cargo expenses2 282 282 282
    Belly offset3 869 152 1,021 1,065
    Nonscheduled4 193 53 246 256
    Transport related5 419 30 449 454
    Plus: Capitalized lease adjustment10 78 1 79 79
    Passenger operating expense 12,396 1,799 14,195 14,470
    Passenger fuel cost11 3,129 N.A.
    Scheduled service ASM's (mils.) 262,068 27,067 289,135 292,255
    Passenger nonfuel operating expense per ASM (dollars) .03827 N.A.
    Passenger fuel expense per ASM (dollars) .01082 N.A.
    Total passenger expense per ASM (dollars) .04909 .04951
    Percent change in nonfuel operating expense per ASM (percent) 8.13 N.A.
    Projected change in nonfuel expense from April 1, 1979 to April 1, 19806 8.13 N.A.
    Estimated change in fuel cost, year ended September 1979 average to April 1, 198014 73.06 N.A.
    Nonfuel operating expense per ASM at April 1, 19807 (dollars) .04474 N.A.
    Fuel expense per ASM at April 1, 19807 (dollars) .02257 N.A.
    Total expense per ASM at April 1, 19807 (dollars) .06731 15 .06782
    Year ended March 1977
    Total operating expense1 (millions) $11,726 $1,520 $13,316 $13,601
    Less:
    All-cargo expense2 238 238 238
    Belly offset3 729 96 825 865
    Nonscheduled4 220 35 225 266
    Transport related5 427 111 538 554
    Passenger operating expense 10,112 1,348 11,460 11,678
    Passenger fuel cost 2,190 230 2,420 N.A.
    Scheduled service ASM's (mils.) 239,593 23,428 263,021 265,837
    Operating expense per ASM (dollars) .04221 .05754 .04357 .04393
    Projected expense per ASM (dollars) as at July 1, 197713 .04593
    Projected operating expense per ASM as at April 1, 1980 (page 1) (dollars) .06782
    Ceiling adjustment factor8 (percent) 47.66
    D.P.F.I. formula effective July 15, 197712:
    Terminal charge $16.16
    Plus .0884/mile (0-500 miles).
    Plus .0674/mile (501-1,500 miles).
    Plus .0648/mile (over 1,500 miles).
    Ceiling formula through April 30, 19809:
    Terminal charge $23.86
    Plus .1305/mile (0-500 miles).
    Plus .0995/mile (501-1,500 miles).
    Plus .0957/mile (over 1,500 miles).

    [PS-92, 45 FR 24119, Apr. 9, 1980]