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Table 2 Monthly Summary of Tarmac Times Oct 2008 - Feb 2010

Table 2 Monthly Summary of Tarmac Times Oct 2008 - Feb 2010

Number and Percent of Flights with Tarmac Times of 3 Hours or More
For an explanation of the new reports, see New Tarmac Time Data Q&A

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  Number of Regularly Scheduled Flights Tarmac Times of 3 Hours or Longer Stage of Operation of the 3-Hour Tarmac Time
Total Percent Prior to Cancellation Multiple Gate Departure Taxi-Out Taxi-In At Diversion Airport
2010                
Feb 2010 481,988 61 0.01 5 1 53 1 1
Jan 2010 521,809 21 0.00 2 3 11 2 3
2009                
Dec 2009 529,269 35 0.01 5 3 22 0 5
Nov 2009 509,540 4 0.00 0 1 2 0 1
Oct 2009 531,799 12 0.00 0 0 12 0 0
Sep 2009 510,852 6 0.00 0 0 4 0 2
Aug 2009 568,301 70 0.01 7 11 45 0 7
Jul 2009 580,134 164 0.03 21 20 105 0 18
Jun 2009 557,594 278 0.05 40 42 172 1 23
May 2009 546,832 35 0.01 7 2 25 1 0
Apr 2009 537,793 81 0.02 12 10 47 0 12
Mar 2009 557,422 88 0.02 6 9 66 0 7
Feb 2009 488,410 43 0.01 5 4 34 0 0
Jan 2009* 532,339 87 0.02 7 10 70 0 0
2009 Total 6,450,285 903 0.18 110 112 604 2 75
2008                
Dec 2008 544,956 187 0.03 40 14 116 7 10
Nov 2008 523,272 7 0.00 0 1 4 0 2
Oct 2008 556,205 49 0.01 2 6 35 0 6

Source: Bureau of Transportation Statistics

* Includes one flight with two separate three-hour tarmac times. Northwest Flight 1491 on Jan. 28 was on the tarmac for 188 minutes before returning to the gate. The flight departed the gate a second time and was on the tarmac for 199 minutes before wheels-off. Details of the flight are listed as a three-hour Multiple Gate Departure and a three-hour Taxi-out. Table 12 of the DOT Air Travel Consumer Report lists number of flights with three-hour tarmac times and counts NW Flight 1491 as a single flight.

Explanation of Stage of Operation
Prior to Cancellation: Flight left the gate but was canceled at the origin airport
Multiple Gate Departure: Flight left the gate, then returned and then left again to resume normal operation. Tarmac time is the time before the return to the gate.
Taxi-out: The time between gate departure and wheels-off
Taxi-in: The time between wheels-on and gate arrival
At Diversion Airport: The tarmac time at the alternate airport