Form 41 Filings Compared to SEC Filings
Northwest
1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006
Revenue  
Passenger Revenue ($Millions)
   F41  $     7,762  $     8,598  $     8,722  $     7,513  $     8,587  $     9,523  $     8,219  $     7,753  $     7,617  $     8,432  $     8,838  $     9,051
   SEC  $     7,762  $     8,598  $     8,822  $     7,607  $     8,692  $     9,653  $     8,417  $     8,025  $     7,632  $     8,432  $     8,902  $     9,230
   % Diff. (0.0%) (0.0%) (1.1%) (1.2%) (1.2%) (1.3%) (2.4%) (3.4%) (0.2%) (0.0%) (0.7%) (1.9%)
Total Revenue ($Millions)
   F41  $     8,909  $     9,751  $     9,984  $     8,707  $     9,868  $    10,957  $     9,592  $     9,152  $     9,184  $    11,266  $    12,316  $    12,555
   SEC  $     9,085  $     9,881  $    10,226  $     9,045  $    10,276  $    11,240  $     9,905  $     9,489  $    10,077  $    11,279  $    12,286  $    12,568
   % Diff. (1.9%) (1.3%) (2.4%) (3.7%) (4.0%) (2.5%) (3.2%) (3.6%) (8.9%) (0.1%) 0.2% (0.1%)
1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006
Expenses  
Fuel ($Millions)
   F41  $     1,084  $     1,397  $     1,383  $     1,087  $     1,182  $     1,859  $     1,704  $     1,405  $     1,497  $     2,166  $     3,045  $     3,318
   SEC  $     1,084  $     1,397  $     1,394  $     1,097  $     1,191  $     1,872  $     1,727  $     1,439  $     1,554  $     2,203  $     3,132  $     3,386
   % Diff. 0.0% 0.0% (0.8%) (0.9%) (0.8%) (0.7%) (1.3%) (2.4%) (3.6%) (1.7%) (2.8%) (2.0%)
Labor ($Millions)  
   F41 (No Personnel Expense)  $     2,864  $     2,915  $     2,964  $     3,200  $     3,334  $     3,537  $     3,878  $     3,786  $     3,794  $     3,735  $     3,662  $     2,604
   SEC  $     2,890  $     2,952  $     3,024  $     3,261  $     3,393  $     3,610  $     3,963  $     3,878  $     3,905  $     3,796  $     3,721  $     2,662
   % Diff. (0.9%) (1.2%) (2.0%) (1.9%) (1.7%) (2.0%) (2.1%) (2.4%) (2.9%) (1.6%) (1.6%) (2.2%)
Maintenance $Millions)      
   F41 (No Labor)  $        693  $        861  $        923  $     1,100  $        966  $        992  $     1,107  $        982  $        752  $        689  $     1,034  $        897
   SEC  $        395  $        556  $        620  $        761  $        635  $        640  $        669  $        576  $        474  $        463  $        703  $        796
   % Diff. 75.3% 54.9% 48.9% 44.6% 52.1% 55.0% 65.5% 70.4% 58.6% 48.7% 47.1% 12.6%
Regional (SEC)/Transport Related (F41) ($Millions)
   F41  $        102  $        100  $        101  $          64  $          78  $        112  $        147  $        163  $        186  $     1,431  $     1,895  $     1,626
   SEC  $        567  $     1,210  $     1,576  $     1,406
   % Diff. (67.3%) 18.2% 20.2% 15.6%
Total Operating Expense ($Millions)
   F41  $     7,999  $     8,643  $     8,780  $     8,836  $     9,099  $    10,293  $    10,388  $     9,935  $     9,460  $    11,700  $    13,211  $    11,773
   SEC  $     8,172  $     8,827  $     9,069  $     9,236  $     9,562  $    10,671  $    10,773  $    10,335  $    10,342  $    11,784  $    13,205  $    11,828
   % Diff. (2.1%) (2.1%) (3.2%) (4.3%) (4.8%) (3.5%) (3.6%) (3.9%) (8.5%) (0.7%) 0.0% (0.5%)
Pre-Tax Income ($Millions)
   F41 $726 $924 $990 ($366) $474 $449 ($646) ($1,200) $448 ($756) ($2,241) ($2,791)
   SEC $544 $872 $985 ($430) $487 $435 ($670) ($1,220) $218 ($861) ($2,457) ($2,864)
   % Diff. 33.6% 5.9% 0.5% (14.8%) (2.6%) 3.2% (3.5%) (1.6%) 105.6% (12.2%) (8.8%) (2.6%)
1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006
Traffic  
Revenue Passenger Miles (Millions)
   F41       62,668       68,719       72,174       66,828       74,263       79,252       73,280       72,142       68,762       73,403       75,920       72,690
   SEC       62,515       68,639       72,031       66,738       74,168       79,128       73,126       72,027       68,476       73,312       75,820       72,606
   % Diff. 0.2% 0.1% 0.2% 0.1% 0.1% 0.2% 0.2% 0.2% 0.4% 0.1% 0.1% 0.1%
Available Seat Miles (Millions)
   F41       87,673       94,021       97,152       91,444       99,575      103,527       98,565       93,583       89,077       91,510       91,915       85,716
   SEC       87,472       93,914       96,964       91,311       99,446      103,356       98,356       93,417       88,593       91,378       91,775       85,603
   % Diff. 0.2% 0.1% 0.2% 0.1% 0.1% 0.2% 0.2% 0.2% 0.5% 0.1% 0.2% 0.1%
ss=xl70 align=right>0.2% 0.5% 0.1% 0.2% 0.1%