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Impacts on UA from AS 737MAX9 incident / Travel Waiver (FAA grounding of MAX9s)

Impacts on UA from AS 737MAX9 incident / Travel Waiver (FAA grounding of MAX9s)

Old Jan 6, 2024, 2:16 pm
  #76  
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Just arrived on a 739M in DEN. Luckily my connecting flight is a 789 and return is 320/752.
bad timing with JPM in SFO this week plus a snow storm on the East coast thatll be a mess
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Old Jan 6, 2024, 2:19 pm
  #77  
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Originally Posted by sonyeoshin
The following flights have been cancelled due to 7M9 grounding

UA336 SFO-SAN
UA410 MCO-IAH
UA1051 CUN-EWR
UA1159 CUN-SFO
UA1368 SJU-DEN
UA1777 BNA-EWR
UA1799 MIA-DEN
UA1832 CUN-IAH
UA1833 SMF-ORD
UA2023 IAD-SJU
UA2088 SJU-ORD
I don't envy the ticketing agents in Cancun right now.
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Old Jan 6, 2024, 2:26 pm
  #78  
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Originally Posted by PsiFighter37
Feels like UA may have to dial back the pace of NEXT retrofits if they have to take any/many/all of the 39Ms out of service for an extended period of time.
Estimates are it takes 3-4+ hours to do the checks and with 40% already checked, doubt this will last (for UA) more than a couple days/
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Old Jan 6, 2024, 2:28 pm
  #79  
 
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Originally Posted by O62
I don't envy the ticketing agents in Cancun right now.
So those three planes are in Cancun now. I assume they will ferry them to a United Hub for the inspections?
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Old Jan 6, 2024, 2:46 pm
  #80  
 
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1378 EWR-DEN
479-CVG-DEN

planes are flying so were the inspections done or are they given some time before grounding
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Old Jan 6, 2024, 2:47 pm
  #81  
 
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Originally Posted by PushingTin
If it’s Boeing, You ain’t going…..

So 737s are popular for Hawaii runs. If this happens mid point, and you have to go gunking around under 10k feet and what 250 or less knots, do you have enough fuel to make it to land, or are you going swimming. And that is with no weather …
You are required to carry enough fuel to fly single engine at 10,000 feet from the equal time point on Hawaii operations and reach an alternate. Typically the airlines use Hilo and SanFran as their equal time airports.
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Old Jan 6, 2024, 2:56 pm
  #82  
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Originally Posted by WineCountryUA
Estimates are it takes 3-4+ hours to do the checks and with 40% already checked, doubt this will last (for UA) more than a couple days/
I would guess that the 40% already checked didn't have any problems, or else we would have heard about it by now.
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Old Jan 6, 2024, 3:00 pm
  #83  
 
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https://theaircurrent.com/feed/dispa...7-max-9-fleet/

The Air Current has learned that the required inspection is a normal part of the aircraft’s C checks, which means that some recently inspected Max 9 airplanes are already in compliance.
​​​​​​​The FAA said that the required inspections will take around four to eight hours per aircraft and will affect approximately 171 airplanes worldwide.
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Old Jan 6, 2024, 3:10 pm
  #84  
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Originally Posted by buckeyefanflyer
1378 EWR-DEN
479-CVG-DEN

planes are flying so we’re the inspections done or are they given some time before grounding
prior comments
Originally Posted by StuMcIlwain
According to the NY Times, United has already inspected 33 of their 7M9s. These planes can be flown again.

Originally Posted by Noanker1
So those three planes are in Cancun now. I assume they will ferry them to a United Hub for the inspections?
depending on the nature of the inspections, UA may fly a mechanic into CUN vs flying multiple crews to do ferry flights
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Old Jan 6, 2024, 3:24 pm
  #85  
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Originally Posted by PushingTin
So 737s are popular for Hawaii runs. If this happens mid point, and you have to go gunking around under 10k feet and what 250 or less knots, do you have enough fuel to make it to land, or are you going swimming. And that is with no weather …
Yes, they're required to fuel for, among other things, the worst of: losing an engine at the worst place to lose an engine, losing pressurization at the worst place to lose pressurization, and losing an engine and pressurization at the worst place.
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Old Jan 6, 2024, 3:26 pm
  #86  
 
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Originally Posted by huey_driver
I'm on a 3M9 tomorrow morning IAD-SJU, 4F, no worries.
Only worry I have is a cancel due to some stupid over-reaction...
Own Boeing stock, by any chance?
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Old Jan 6, 2024, 3:35 pm
  #87  
 
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Originally Posted by WineCountryUA
prior comments



depending on the nature of the inspections, UA may fly a mechanic into CUN vs flying multiple crews to do ferry flights
UA. have their own mechanics in CUN.
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Old Jan 6, 2024, 3:37 pm
  #88  
 
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I have been following UA 2227, IAH to FLL on a MAX9. Today it is listed as just over 3 hours late and they are flying a 737-700 so it looks like a subbed AC is making the flight happen.
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Old Jan 6, 2024, 3:44 pm
  #89  
 
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Also looks like they have swapped to a 737-800 inbound from MCO for the following flights tonight:
UA 2276 IAD-LAX
UA 684 LAX-IAD
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Old Jan 6, 2024, 4:38 pm
  #90  
 
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Originally Posted by EWR764
Days, maybe a week of disruption. UA will move through these inspections rapidly at 4-8 hours per ship.



ETOPS rules take into account diversion to an alternate with a rapid decompression at the equal time point. There are scenarios (major structural failure creating additional drag, for example) that can't be adequately planned under all circumstances, but descent to a safe altitude and onward flight to nearest alternate is contemplated.
Originally Posted by Jeff767
You are required to carry enough fuel to fly single engine at 10,000 feet from the equal time point on Hawaii operations and reach an alternate. Typically the airlines use Hilo and SanFran as their equal time airports.
Originally Posted by mduell
Yes, they're required to fuel for, among other things, the worst of: losing an engine at the worst place to lose an engine, losing pressurization at the worst place to lose pressurization, and losing an engine and pressurization at the worst place.
Thanks for the input. My first thought was that it was just too long and that the 737 couldnt have enough gas to make up for the aerodynamic inefficiencies .

Wow, I really didnt know what the distance was, like 2400miles max, so 1200 miles a non-optimum. A 737 can do about 3000nm, so if they had full fuel, the fuel usage could be almost 2x normal for the last 1200 miles and theyd still get there. Slowly. Id assume that youd have to go pretty slow? Id imagine thered be some hearing damage from that. Ugh.
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