TABLE 4-32 - Monthly Summary of Tarmac Times: October 2008-August 2010
TABLE 4-32 - Monthly Summary of Tarmac Times: October 2008-August 2010
Number and percent of flights with tarmac times of 3 hours or more
| 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 | ||
| Oct 2008 | 556,205 | 46 | 0.01 | 2 | 5 | 33 | 0 | 6 |
| Nov 2008 | 523,272 | 7 | 0.00 | 0 | 1 | 4 | 0 | 2 |
| Dec 2008 | 544,956 | 183 | 0.03 | 40 | 13 | 113 | 7 | 10 |
| Jan 2009 | 532,339 | 85 | 0.02 | 7 | 10 | 68 | 0 | 0 |
| Feb 2009 | 488,410 | 40 | 0.01 | 5 | 3 | 32 | 0 | 0 |
| Mar 2009 | 557,422 | 85 | 0.02 | 6 | 9 | 63 | 0 | 7 |
| Apr 2009 | 537,793 | 74 | 0.01 | 10 | 8 | 45 | 0 | 11 |
| May 2009 | 546,832 | 34 | 0.01 | 7 | 2 | 24 | 1 | 0 |
| Jun 2009 | 557,594 | 268 | 0.05 | 38 | 40 | 167 | 1 | 22 |
| Jul 2009 | 580,134 | 161 | 0.03 | 21 | 20 | 102 | 0 | 18 |
| Aug 2009 | 568,301 | 66 | 0.01 | 6 | 10 | 43 | 0 | 7 |
| Sep 2009 | 510,852 | 6 | 0.00 | 0 | 0 | 4 | 0 | 2 |
| Oct 2009 | 531,799 | 11 | 0.00 | 0 | 0 | 11 | 0 | 0 |
| Nov 2009 | 509,540 | 4 | 0.00 | 0 | 1 | 2 | 0 | 1 |
| Dec 2009 | 529,269 | 34 | 0.01 | 4 | 3 | 22 | 0 | 5 |
| Jan 2010 | 521,809 | 20 | 0.00 | 1 | 3 | 11 | 2 | 3 |
| Feb 2010 | 481,988 | 60 | 0.01 | 5 | 1 | 52 | 1 | 1 |
| Mar 2010 | 549,262 | 25 | 0.00 | 9 | 2 | 11 | 1 | 2 |
| Apr 2010 | 529,330 | 4 | 0.00 | 0 | 0 | 1 | 0 | 3 |
| May 2010 | 542,747 | 1 | 0.00 | 0 | 0 | 1 | 0 | 0 |
| Jun 2010 | 551,687 | 3 | 0.00 | 2 | 0 | 1 | 0 | 0 |
| Jul 2010 | 570,788 | 3 | 0.00 | 3 | 0 | 0 | 0 | 0 |
| Aug 2010 | 569,217 | 1 | 0.00 | 0 | 0 | 0 | 0 | 1 |
NOTES: The tarmac delay rulemaking took effect in October 2008. January 2009 includes one flight with two separate 3-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 3-hour multiple gate departure and a 3-hour taxi-out. Table 12 of the Air Travel Consumer Report lists number of flights with 3-hour tarmac times and counts NW Flight 1491 as a single flight. Beginning in April 2010, carriers were subject to fines for 3-hour-or-more tarmac times.
Explanation of Stage of Operation:
Prior to Cancellation: Flight left the gate but was cancelled 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.
SOURCE: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, Office of Airline Information, Tarmac Times,available at http://www.bts.gov/ as of October 2010.