Aircraft Operating Statistics- Cost Per Block Hour (Unadjusted)
Northwest Airlines
1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007
  Small Narrowbodies $1,787 $1,884 $1,846 $1,991 $1,881 $2,116 $2,343 $2,212 $2,275 $2,540 $3,066 $2,980 $3,014
(Ex Fuel) $1,309 $1,308 $1,290 $1,514 $1,427 $1,412 $1,668 $1,635 $1,628 $1,622 $1,725 $1,421 $1,413
Pilots $625 $561 $524 $591 $583 $581 $648 $674 $731 $716 $701 $546 $523
Salaries and Wages $476 $386 $354 $405 $381 $401 $443 $454 $468 $460 $400 $323 $360
Pilot Training $30 $36 $44 $43 $40 $39 $41 $35 $38 $35 $28 $20 $29
Benefits and Payroll Taxes $89 $107 $91 $103 $124 $100 $125 $151 $192 $190 $240 $167 $98
Per Diem/ Personnel $31 $33 $35 $39 $39 $41 $39 $35 $32 $31 $33 $35 $36
Purchased Goods $525 $646 $623 $542 $518 $774 $741 $646 $712 $978 $1,413 $1,637 $1,681
Fuel/Oil $477 $576 $556 $477 $454 $704 $674 $576 $647 $919 $1,341 $1,559 $1,601
Insurance $6 $5 $4 $4 $3 $3 $4 $7 $4 $3 $3 $3 $2
Other (inc. Tax) $42 $65 $63 $60 $61 $67 $63 $63 $61 $56 $69 $75 $78
Maintenance $373 $411 $447 $580 $492 $432 $487 $504 $446 $460 $549 $444 $492
Labor $54 $53 $48 $51 $47 $46 $43 $50 $39 $35 $22 $1 $1
Materials $138 $145 $157 $200 $165 $124 $117 $114 $75 $111 $93 $56 $58
Third Party $66 $85 $116 $170 $143 $112 $156 $145 $159 $159 $280 $314 $340
Total Direct $230 $270 $317 $420 $341 $281 $315 $306 $270 $304 $392 $364 $389
Burden $143 $141 $132 $161 $152 $151 $172 $198 $175 $155 $164 $80 $102
Aircraft Ownership $260 $259 $243 $270 $280 $320 $451 $359 $384 $383 $399 $348 $310
Rentals $165 $146 $122 $124 $111 $144 $146 $137 $141 $140 $146 $98 $114
Depreciation and Amortization $94 $112 $121 $146 $169 $176 $305 $222 $243 $242 $253 $250 $196
Other $5 $7 $9 $9 $8 $10 $15 $28 $3 $4 $4 $5 $9
Indicies
Aircraft In Fleet             267             277             275             284             283             285             295             307             298             302             287             247              239
Seats Per Departure             126             125             124             125             126             125             124             124             123             125             126             128              129
Average Stage Length             612             612             614             622             633             639             648             657             658             660             669             675              665
Gallons of Fuel Per Block Hour             902             895             887             883             869             854             848             825             794             787             781             773              775
Load Factor 65.8% 65.8% 67.7% 67.7% 67.6% 70.0% 68.2% 69.5% 70.6% 73.2% 76.8% 80.8% 80.9%
Daily Utilization per Aircraft
Block Hours            8.85            8.66            8.64            7.86            8.71            8.88            8.39            8.07            8.05            8.10            8.12            8.52             8.38
Airborne Hours            7.16            6.98            6.92            6.27            6.91            7.04            6.70            6.47            6.51            6.51            6.49            6.79             6.55
Departures            4.82            4.69            4.62            4.12            4.49            4.53            4.26            4.06            4.08            4.08            4.03            4.16             4.02
  Large Narrowbodies $2,341 $2,533 $2,362 $2,429 $2,260 $2,794 $3,002 $2,928 $2,807 $3,332 $3,911 $4,354 $4,116
(Ex Fuel) $1,818 $1,893 $1,740 $1,900 $1,735 $1,968 $2,213 $2,233 $1,980 $2,100 $2,106 $2,202 $1,949
Pilots $661 $624 $616 $687 $675 $657 $717 $727 $804 $824 $792 $619 $588
Salaries and Wages $508 $431 $422 $474 $447 $458 $491 $491 $517 $542 $464 $377 $411
Pilot Training $33 $40 $51 $50 $47 $44 $45 $37 $42 $41 $31 $24 $33
Benefits and Payroll Taxes $93 $124 $110 $126 $146 $116 $144 $167 $213 $210 $264 $182 $106
Per Diem/ Personnel $26 $29 $32 $36 $36 $39 $37 $32 $31 $31 $33 $36 $38
Purchased Goods $582 $725 $706 $614 $606 $912 $875 $790 $918 $1,319 $1,910 $2,261 $2,273
Fuel/Oil $522 $640 $622 $529 $525 $825 $789 $695 $827 $1,232 $1,805 $2,152 $2,166
Insurance $14 $15 $12 $9 $5 $4 $6 $13 $9 $7 $6 $5 $2
Other (inc. Tax) $46 $70 $73 $75 $76 $83 $80 $82 $83 $80 $99 $104 $105
Maintenance $638 $646 $501 $595 $474 $719 $868 $852 $472 $567 $549 $938 $891
Labor $61 $60 $46 $53 $42 $38 $65 $74 $35 $47 $19 $1 $1
Materials $317 $333 $245 $240 $231 $440 $410 $374 $198 $223 $112 $129 $72
Third Party $104 $94 $81 $137 $73 $114 $137 $116 $77 $84 $273 $735 $719
Total Direct $473 $487 $373 $429 $339 $592 $612 $564 $310 $353 $401 $865 $792
Burden $165 $159 $128 $166 $135 $128 $256 $288 $162 $214 $147 $74 $99
Aircraft Ownership $453 $534 $536 $524 $496 $496 $532 $551 $605 $615 $653 $529 $359
Rentals $306 $395 $390 $408 $382 $382 $395 $370 $349 $339 $323 $171 $114
Depreciation and Amortization $147 $139 $146 $116 $114 $114 $137 $181 $255 $277 $330 $358 $245
Other $6 $5 $3 $10 $9 $9 $10 $8 $9 $6 $8 $8 $4
Indicies
Aircraft In Fleet               33               42               48               48               48               48               50               56               65               67               66               62                72
Seats Per Departure             184             190             191             191             191             191             185             183             190             194             195             196              193
Average Stage Length          1,103          1,127          1,126          1,150          1,137          1,118          1,180          1,207          1,189          1,191          1,243          1,249            1,331
Gallons of Fuel Per Block Hour             980             980             986             995             998             999          1,001          1,001          1,020          1,039          1,050          1,060            1,046
Load Factor                 1                 1                 1                 1                 1                 1                 1                 1                 1                 1                 1                 1                  1
Daily Utilization per Aircraft
Block Hours                11               11               12               11               12               12               11               10                 9                 9               10               11                10
Airborne Hours                 9               10               10                 9               10               10                 9                 9                 8                 8                 9                 9                  9
Departures                 4                 4                 4                 4                 4                 4                 4                 3                 3                 3                 3                 3                  3
  Widebodies $5,264 $5,891 $5,883 $6,059 $5,605 $6,777 $6,709 $7,411 $6,982 $7,803 $8,680 $8,880 $8,271
(Ex Fuel) $3,399 $3,654 $3,746 $4,351 $3,855 $4,122 $4,235 $5,188 $4,416 $4,237 $3,888 $3,297 $3,019
Pilots $1,226 $1,219 $1,248 $1,408 $1,339 $1,303 $1,404 $1,463 $1,706 $1,605 $1,519 $1,160 $1,050
Salaries and Wages $950 $870 $896 $1,029 $938 $954 $1,010 $1,040 $1,162 $1,084 $918 $714 $733
Pilot Training $62 $77 $105 $103 $91 $86 $88 $75 $91 $80 $60 $44 $57
Benefits and Payroll Taxes $158 $219 $195 $220 $253 $202 $248 $291 $388 $378 $483 $342 $198
Per Diem/ Personnel $56 $53 $52 $56 $58 $60 $58 $57 $65 $64 $58 $59 $62
Purchased Goods $1,931 $2,308 $2,196 $1,761 $1,804 $2,714 $2,525 $2,274 $2,605 $3,600 $4,829 $5,614 $5,277
Fuel/Oil $1,865 $2,237 $2,137 $1,707 $1,750 $2,655 $2,474 $2,223 $2,567 $3,566 $4,792 $5,583 $5,253
Insurance $21 $18 $12 $10 $6 $5 $7 $16 $10 $8 $8 $8 $5
Other (inc. Tax) $45 $53 $47 $43 $48 $53 $44 $34 $28 $25 $29 $23 $19
Maintenance $1,307 $1,580 $1,670 $2,031 $1,567 $1,612 $1,727 $1,499 $1,207 $740 $1,089 $1,221 $1,123
Labor $150 $146 $166 $174 $131 $152 $137 $117 $62 $21 $8 $1 $1
Materials $385 $581 $539 $733 $506 $460 $401 $329 $241 $201 $186 $167 $128
Third Party $261 $383 $406 $482 $385 $431 $458 $444 $509 $347 $677 $821 $759
Total Direct $791 $1,085 $1,109 $1,374 $1,014 $1,009 $995 $890 $807 $572 $871 $941 $869
Burden $516 $496 $561 $657 $553 $603 $732 $610 $400 $185 $219 $280 $254
Aircraft Ownership $767 $741 $732 $810 $850 $1,114 $1,011 $2,049 $1,400 $1,765 $1,248 $884 $818
Rentals $604 $564 $555 $555 $556 $596 $617 $735 $870 $888 $809 $396 $340
Depreciation and Amortization $163 $177 $176 $255 $294 $517 $393 $1,314 $530 $878 $440 $488 $478
Other $33 $43 $37 $50 $45 $36 $44 $125 $63 $93 -$5 $1 $4
Indicies
Aircraft In Fleet               70               72               76               80               84               87               90               81               66               65               67               64                59
Seats Per Departure             300             305             305             303             302             304             292             295             287             276             272             266              275
Average Stage Length          2,832          2,894          2,934          3,040          2,997          2,978          3,027          3,241          3,513          3,577          3,579          3,475            3,497
Gallons of Fuel Per Block Hour          3,178          3,185          3,179          3,175          3,168          3,151          3,098          3,190          3,178          2,979          2,868          2,743            2,571
Load Factor 76.2% 78.9% 79.2% 77.0% 80.0% 81.7% 79.0% 83.6% 82.3% 86.3% 87.3% 88.1% 86.5%
Daily Utilization per Aircraft
Block Hours           11.54          11.76          11.61          10.44          10.88          11.10          10.49            9.94          10.80          11.59          11.71          11.57            12.49
Airborne Hours          10.64          10.84          10.68            9.63            9.98          10.17            9.62            9.19          10.12          10.82          11.07          10.74            11.45
Departures            1.93            1.93            1.88            1.64            1.72            1.76            1.64            1.47            1.50            1.57            1.58            1.60             1.71
  Total Fleet $2,638 $2,880 $2,858 $2,998 $2,798 $3,319 $3,468 $3,406 $3,267 $3,705 $4,383 $4,486 $4,361
(Ex Fuel) $1,839 $1,917 $1,926 $2,228 $2,034 $2,134 $2,351 $2,468 $2,222 $2,214 $2,242 $1,965 $1,867
Pilots $766 $719 $705 $794 $772 $763 $836 $847 $930 $909 $887 $689 $648
Salaries and Wages $587 $502 $490 $560 $519 $541 $584 $582 $609 $596 $519 $416 $450
Pilot Training $38 $46 $59 $58 $53 $51 $52 $44 $49 $45 $35 $26 $36
Benefits and Payroll Taxes $105 $135 $118 $134 $157 $126 $157 $183 $233 $230 $295 $207 $121
Per Diem/ Personnel $36 $37 $39 $43 $43 $45 $44 $39 $38 $37 $38 $40 $42
Purchased Goods $852 $1,035 $1,000 $835 $828 $1,254 $1,182 $1,008 $1,110 $1,549 $2,212 $2,595 $2,568
Fuel/Oil $799 $962 $933 $770 $764 $1,185 $1,117 $938 $1,045 $1,491 $2,141 $2,521 $2,494
Insurance $10 $9 $7 $6 $4 $4 $5 $10 $6 $5 $5 $5 $3
Other (inc. Tax) $43 $63 $61 $59 $60 $66 $61 $60 $58 $54 $66 $69 $71
Maintenance $613 $707 $739 $919 $738 $752 $833 $764 $596 $532 $661 $701 $711
Labor $76 $75 $75 $80 $66 $70 $68 $67 $43 $34 $19 $1 $1
Materials $213 $268 $259 $329 $254 $248 $225 $198 $127 $147 $116 $93 $76
Third Party $114 $154 $178 $237 $189 $188 $225 $203 $213 $184 $362 $501 $510
Total Direct $384 $484 $509 $642 $497 $497 $517 $467 $380 $365 $493 $580 $577
Burden $231 $224 $231 $276 $242 $255 $316 $298 $216 $171 $172 $121 $134
Aircraft Ownership $395 $404 $399 $432 $443 $533 $595 $741 $615 $693 $620 $495 $428
Rentals $280 $273 $262 $265 $253 $284 $292 $297 $315 $320 $315 $175 $162
Depreciation and Amortization $115 $130 $138 $167 $190 $249 $303 $444 $300 $373 $305 $321 $266
Other $11 $15 $15 $18 $17 $16 $21 $45 $15 $22 $3 $5 $7
Indicies
Aircraft In Fleet             370             392             399             412             414             420             435             444             429             434             420             373              370
Seats Per Departure             183             186             188             188             188             189             184             179             176             176             178             179              184
Average Stage Length             846             862             882             899             905             914             928             921             915             925             961             978            1,003
Gallons of Fuel Per Block Hour          1,430          1,428          1,434          1,431          1,420          1,421          1,402          1,346          1,289          1,259          1,263          1,243            1,213
Load Factor 71.5% 73.1% 74.3% 73.1% 74.6% 76.6% 74.3% 77.1% 77.2% 80.2% 82.6% 84.8% 84.6%
Daily Utilization per Aircraft
Block Hours             9.56            9.50            9.56            8.73            9.49            9.67            9.12            8.69            8.67            8.83            9.00            9.40             9.42
Airborne Hours            8.02            7.97            7.98            7.28            7.87            8.01            7.60            7.26            7.30            7.41            7.56            7.86             7.79
Departures            4.19            4.09            4.02            3.59            3.86            3.90            3.64            3.49            3.53            3.55            3.50            3.59             3.47