Code of Federal Regulations (Last Updated: November 8, 2024) |
Title 14 - Aeronautics and Space |
Chapter II - Office of the Secretary, Department of Transportation (Aviation Proceedings) |
SubChapter F - Policy Statements |
Part 399 - Statements of General Policy |
Example of SIFL Adjustment
Latest version.
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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]