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Joined: Tue Nov 02, 1999 7:43 am

How Are Interrupted Flights Tracked?

Thu Jun 06, 2002 5:35 am


I was once onboard a United Airlines 747 flight from FRA to IAD that was diverted to LHR because of engine trouble. Once the problem was fixed, we were told that we had a new flight number (a "9" was added in front of the original number) and we had to use that new number when filling out the arrival cards for the USA.

Today, an Air Europe 777 from Cancun to Rome was diverted to my home airport in Boston because of an unruly passenger (escorted in by F-15 fighters!). When the flight left Boston, it still had the original flight number. However, the original segment was listed as "cancelled".


Air Europe/#2065
Depart MMUN 2h 14m ago Cancelled - - -
Arrive LIRF in 8 hours and 11 minutes - -

Air Europe/#2065
Depart Logan Intl, MA 1:10 pm In Flight 1476 mi E of Portland, ME 37,000ft 630mph
Arrive LIRF in 4 hours and 38 minutes B772

Shouldn't the plane have gotten a new flight number for the new segment?

Does anyone know if there are policies on this? If so, are the policies standard on a national or international level?

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Joined: Sun Oct 14, 2001 7:26 am

RE: How Are Interrupted Flights Tracked?

Thu Jun 06, 2002 5:50 am


Usually if the next day's flight is going to be airborne at the same time, then a new flight number is given, something like you said about just adding an extra number to the front just to give it a differant identity, not just for airlines ops purposes, but also for ATC as the callsign would adopt this new number too, otherwise it would just keep the same flight number, as there would be no confusion with 2 a/c in the air at same time with same flt no.


"She Rolls, 45 knots, 90, 135, nose comes up to 20 degrees, she's airborne - She flies, Concorde Flies"
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Joined: Sun Oct 21, 2001 5:29 am

RE: How Are Interrupted Flights Tracked?

Thu Jun 06, 2002 5:58 am

South African every now and then have a masive delay on Saturday into LHR.They add 9 in front of the callsign beause of what Leezy said.
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Joined: Sun Feb 17, 2002 11:33 am

RE: How Are Interrupted Flights Tracked?

Thu Jun 06, 2002 6:10 am

when ever a flight is interupted by what ever reason,the flight is not always givin a new flight number.

when ever we work diversions they keep the same flight number,if the plane goes to a gate and even is then a repositin flight.

here is an example:we had a 767 divert to our city due to weather elsewhere,when the flight landed it was 5th in line for fuel and to leave our city.
when a 727 had engine trouble they sent the flight to a remote gate and cancelled.
we saw that the 767 was empty as it was a reposition flight already.loaded the bad boy up with our 146 pax and sent it out with out problems.

the flight number they gave it was a "9" number.being that all united flights are three numbers or four and never starting in a "9" we knew it was a reposition was flight number 9963 or something.

whenever a ferry flight is leaving it is givin a flight number starting in "9"
also i was told it was also to identify the plane itself,it makes sense when it happens but to explain it i probably didnt do a very good job.hope this helps.

ual 777 contrail
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Joined: Tue Nov 02, 1999 7:43 am

Boston Divert:How Are Interrupted Flights Tracked?

Thu Jun 06, 2002 9:58 am

Thanks for the explanations guys. I still don't understand if there are standards for this however.

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