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Strange Flightpath For NWA 624 (HNL-MSP) On 6/13  
User currently offlineJawed From United States of America, joined Sep 2006, 482 posts, RR: 0
Posted (5 years 6 months 1 week 4 days 10 hours ago) and read 11499 times:

On June 13th, NWA 624 from HNL to MSP turned back to HNL in the middle of the route, still over the Pacific, but then turned back again and continued to MSP.

What happened?

Flight info:
http://flightaware.com/live/flight/N...4/history/20090614/0336Z/PHNL/KMSP

Flight path:
http://i548.photobucket.com/albums/ii356/javvypics1/flight_track_maprvt.gif

6 replies: All unread, jump to last
 
User currently offlineLAXintl From United States of America, joined May 2000, 26150 posts, RR: 50
Reply 1, posted (5 years 6 months 1 week 4 days 10 hours ago) and read 11488 times:

I'd chalk it up to another Flight Aware data anomaly.


From the desert to the sea, to all of Southern California
User currently offlineDenverdanny From United States of America, joined Sep 2007, 263 posts, RR: 0
Reply 2, posted (5 years 6 months 1 week 4 days 10 hours ago) and read 11458 times:

I think it's just a map overlay issue, since Hawaii really isn't that close.

User currently offlineCALPSAFltSkeds From United States of America, joined Dec 2006, 2727 posts, RR: 9
Reply 3, posted (5 years 6 months 1 week 4 days 8 hours ago) and read 11136 times:

If you click on the "track log", you'll see that the aircraft is traveling eastward on every report. The aircraft seems to be traveling about -0.14 longitude per minute at cruise. It looks like a bad report over the ocean at 2230 as it only traveled under 4 degrees of longitude in 50 minute, followed by nearly 7 degree in the following 30 minutes. My guess is a bad report to OAK Oceanic at 2230, which might have created the thick line over the Pacific..

User currently offlineTranspac787 From United States of America, joined Jul 2007, 3217 posts, RR: 16
Reply 4, posted (5 years 6 months 1 week 4 days 7 hours ago) and read 10908 times:

They most definitely did *not* turn around. On eastbound HNL-US flights, the ETP (equal time point) is only about 2 hours outside of HNL. As you can see, at the point in question, it would have been a LOT quicker to just continue onward to the mainland, both in distance and duration, if some in-flight problem had come up.

So yea, it's definitely a FlightAware mistake. The ETOPS equal time point was long passed, and they would have just continued to SFO/OAK/SJC for divert.


User currently offlineGothamSpotter From United States of America, joined Jan 2005, 586 posts, RR: 0
Reply 5, posted (5 years 6 months 1 week 3 days 23 hours ago) and read 9650 times:

FlightAware routinely messes up flight paths on overseas flights. Note the disclaimer on many flights: "At least part of this flight occurs outside of FlightAware's service area. Information on this page may be unreliable."

For example:
China Eastern 587 (JFK-Pudong) goes around the world...
http://flightaware.com/live/flight/CES587

JetBlue 758 (JFK-Aruba) ends in the Atlantic near Dominican Republic
http://flightaware.com/live/flight/JBU758


User currently offlineBorism From Estonia, joined Oct 2006, 431 posts, RR: 0
Reply 6, posted (5 years 6 months 1 week 3 days 22 hours ago) and read 9422 times:

While FlightAware routinely messes up flight paths outside N. American airspace, this particular glitch is due to Oakland Oceanic ODAPS position report being less precise than those of radar covered areas. I've seen this happening in even weirder ways to Hawaii-Alaska flights.

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