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N62NA
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AA 277 MIA-LAX: Dismal On-Time Performance. Why?

Thu Aug 23, 2012 4:36 pm

I'm booked on this flight in about a month and have noticed that this flight is horrendously delayed most days. Anybody know why?

http://flightaware.com/live/flight/AAL277

I would think mechanical issues are probably not the cause, as it's a 777 and not one of those ratty 757s.
 
packcheer
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RE: AA 277 MIA-LAX: Dismal On-Time Performance. Why?

Thu Aug 23, 2012 4:41 pm

Taking a stab in the dark here, since it is a 777, would it be likely that the delay comes from the Aircraft turning from an inbound international flight, and having to go through customs checks etc, and the inbound internationals may be delayed.

or, maybe this aircraft is operating as a spare in Miami, and can't leave until the other 777 flights have all left. That would make the MIA - LAX leg delayed any time another 777 flight is delayed departing so it can remain as the backup aircraft.
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N62NA
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RE: AA 277 MIA-LAX: Dismal On-Time Performance. Why?

Thu Aug 23, 2012 8:03 pm

Quoting Packcheer (Reply 1):
would it be likely that the delay comes from the Aircraft turning from an inbound international flight

Yeah, I would think that is a strong possibility, though I would imagine the aircraft comes in from South America, and those flights arrive around 4am or 5am, so that should be enough of a cushion (Flight 277 is supposed to leave at 10:45am) so that the MIA-LAX #277 wouldn't be delayed.

Quoting Packcheer (Reply 1):
maybe this aircraft is operating as a spare in Miami, and can't leave until the other 777 flights have all left

I think that is less likely, as the only AA 777 leaving MIA in the morning is the 8am flight to LAX and the next one isn't until past 6pm when the LHR flight goes out.
 
runway23
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RE: AA 277 MIA-LAX: Dismal On-Time Performance. Why?

Thu Aug 23, 2012 8:38 pm

LAX-MIA-LAX 777s act more as backups and fit in between NRT, PVG, LHR operations. Therefore if a delay happens AA will send the other flights out before MIA.
 
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N62NA
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RE: AA 277 MIA-LAX: Dismal On-Time Performance. Why?

Thu Aug 23, 2012 8:44 pm

Quoting runway23 (Reply 3):
LAX-MIA-LAX 777s act more as backups and fit in between NRT, PVG, LHR operations. Therefore if a delay happens AA will send the other flights out before MIA.

Yep, but this flight is a 10:45am departure out of MIA to LAX, so why holding it for 1 to 2 hours most days doesn't make any sense if it is a backup aircraft as it isn't really clear what it is backing up.
 
luckyone
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RE: AA 277 MIA-LAX: Dismal On-Time Performance. Why?

Thu Aug 23, 2012 8:54 pm

Could it frequently take longer than expected for customs and security the clear the aircraft given the flight is between two heavily international, delay-prone airports? I was due to fly Delta from DTW to ATL and the flight was delayed almost two hours because of customs and security. The aircraft was coming from Hong Kong.
 
744lover
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RE: AA 277 MIA-LAX: Dismal On-Time Performance. Why?

Thu Aug 23, 2012 9:29 pm

Not only MIA-LAX...

AA963 (DFW - GRU) is also heavily delayed.
http://flightaware.com/live/flight/AAL963

STD is 07:45PM CDT
7-day-AVERAGE: 09:11PM CDT

This gives an average delay of almost 01:30 everyday.


BR,
744lover
 
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RE: AA 277 MIA-LAX: Dismal On-Time Performance. Why?

Fri Aug 24, 2012 1:35 am

Quoting 744lover (Reply 6):
This gives an average delay of almost 01:30 everyday.

Hmmm... So it appears this may actually be "typical AA delays" at play here.
 
spiritair97
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RE: AA 277 MIA-LAX: Dismal On-Time Performance. Why?

Fri Aug 24, 2012 2:01 am

Quoting Packcheer (Reply 1):
Quoting N62NA (Reply 2):

This flight's aircraft comes from EZE, as can easily be found by clicking "Trank inbound flight" on flightaware. Also, the inbound flight, AAL908, comes in at 0645, and flight AAL277 leaves at 1045. That's a 4-hour turnaround,so odds are it is that it is acting as a spare plane in MIA.
 
n737aa
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RE: AA 277 MIA-LAX: Dismal On-Time Performance. Why?

Fri Aug 24, 2012 1:15 pm

Quoting N62NA (Thread starter):
I'm booked on this flight in about a month and have noticed that this flight is horrendously delayed most days. Anybody know why?

http://flightaware.com/live/flight/AAL277



If you look closely at the link you posted, you will notice duplicate dates for the same flight. Flightaware is not as accurate as everyone might think and it is based on the off time not the out time. Off time is the time it leaves the ground and Out time is the time it departs the gate. Flightware uses off time. I don't know why there would be duplicate dates for the same flight but probably has something to do with flightplan filing..dunno.

This flight has been delayed 15 mins or more just 5 times in the last 31 days.

24JUL-33mins-FAA Ramp inspection of cargo loading
10AUG-33mins-Weather at MIA/ATC Hold
12AUG-238mins-Maintenance
19AUG-63mins-Weight and Balance Computer Failure
22AUG-54mins-Maintenance
23AUG-73mins-Awaiting Flight Crew

During this same period of time this flight departed early 11 times and on time 8 times and 6 times within 15 mins of scheduled departure time. So its performance is very good, especially if you take out the 2 delays beyond AA's control and the freak computer glitch.

Quoting Packcheer (Reply 1):
Taking a stab in the dark here, since it is a 777, would it be likely that the delay comes from the Aircraft turning from an inbound international flight, and having to go through customs checks etc, and the inbound internationals may be delayed.

or, maybe this aircraft is operating as a spare in Miami, and can't leave until the other 777 flights have all left. That would make the MIA - LAX leg delayed any time another 777 flight is delayed departing so it can remain as the backup aircraft.



Yes it normally is a turn from a EZE or GRU redeye but your other assumption is wrong, the only other 777 departing before it is AA299 to LAX.

Quoting runway23 (Reply 3):
LAX-MIA-LAX 777s act more as backups and fit in between NRT, PVG, LHR operations. Therefore if a delay happens AA will send the other flights out before MIA.



Nope see above.

Quoting luckyone (Reply 5):
Could it frequently take longer than expected for customs and security the clear the aircraft given the flight is between two heavily international, delay-prone airports? I was due to fly Delta from DTW to ATL and the flight was delayed almost two hours because of customs and security. The aircraft was coming from Hong Kong.



Nope plenty of time for that, the GRU and EZE flights land at 0555A and 0655A respectively.

Quoting N62NA (Reply 7):
Hmmm... So it appears this may actually be "typical AA delays" at play here.



Hmmmm....based on the 31 history its really no different that any other flight on any other airline. Don't forget the number of times it departed early.

Quoting spiritair97 (Reply 8):
This flight's aircraft comes from EZE, as can easily be found by clicking "Trank inbound flight" on flightaware. Also, the inbound flight, AAL908, comes in at 0645, and flight AAL277 leaves at 1045. That's a 4-hour turnaround,so odds are it is that it is acting as a spare plane in MIA.



The 31 day history of the inbound flight history goes like this:

EZE=13x
GRU=14x
LAX=2x
SPARE=2x

See above about your "spare" theory.

Just wanted to set the record straight.

N737AA
 
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N62NA
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RE: AA 277 MIA-LAX: Dismal On-Time Performance. Why?

Fri Aug 24, 2012 3:57 pm

Quoting spiritair97 (Reply 8):
This flight's aircraft comes from EZE, as can easily be found by clicking "Trank inbound flight" on flightaware. Also, the inbound flight, AAL908, comes in at 0645, and flight AAL277 leaves at 1045. That's a 4-hour turnaround,so odds are it is that it is acting as a spare plane in MIA.

Today it came from GRU.

Quoting N737AA (Reply 9):
Just wanted to set the record straight.

N737AA

Thanks N737AA. That's the info I was looking for.

I've been on AA 299 (the 8am 777 MIA-LAX) and have had a 2 hour delay due to the dreaded "We have some hazardous cargo and are not sure if we can fly with it..." Hoping my AA 277 next month goes out on time! (Fingers crossed!).

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