737 max loses window

Author
Discussion

jan8p

1,732 posts

230 months

Tuesday 9th January
quotequote all
s1962a said:
What about all the other bolts and things that forgot to be installed correctly?
Indeed. At this point surely nobody will believe it when they say "don't worry, we didn't forget anything else'.

hidetheelephants

25,119 posts

195 months

Tuesday 9th January
quotequote all
airbusA346 said:
Didn't Airbus initially win the contract for the USAF tanker program with the A330 MRTT, but Boeing threw their toys out of the pram and were then given the job which resulted in the current KC-46 mess.
yes The KC46 is trash, the boom doesn't work properly and they don't know how to fix it, the camera vision system for the boom operator doesn't work in low light and a fix will not happen until 2025, the tank inerting system is garbage and requires ground crew to activate it hours before the aircraft is needed. There are other chronic problems, the rectification costs to Boeing have already exceeded the original value of the contract. It's not a trivial issue, the KC135 and KC10 fleet are creaky, old and ready for the tinfoil factory, this junk was supposed to be taking the strain off them and it's not. Terrible value for money as Voyager was to the RAF, at least the MRTT works.

airbusA346

813 posts

155 months

Tuesday 9th January
quotequote all
GliderRider said:
A lot of it is about pilots not having to get another type rating. When launched Boeing said that an active 737NG rated pilot would not need any simulator time to fly the 737 Max, only requiring 'Level B' training. This may have been a contributing factor to pilots not being taught to handle faults in the MCAS system.

737 Max Pilot Training Requirements
And trying to fit engines that are too large for the aircraft.

jan8p said:
If the decompression is that violent, surely a door blowing open is the least of your worries if you're stood up and not strapped in? biggrin
I'm sure it was said that the door had damaged the lavatory and got stuck open. A flight attendant did manage to close it eventually though.

It also ripped the headsets off the first officer and partially off the captain.

Panamax said:
Hindsight isn't going to help anyone at this point. It looks as though 737-MAX is here to stay. Airbus is sold out into the near future so anyone who wants a new plane soon needs to buy a Boeing.

IMO it's going too far to suggest every bolt must now be questioned. If I've understood correctly these doorways may need to be open for access while the interior of the plane is being installed. Then someone fits the door plug and finally that last bit of interior is finished off. It seems to be an unusual stage of the construction process which "should" be easy to check on existing aircraft and "should" be straightforward to double-check in future builds.
But is it? Loose nuts have been found in the tail (sub type not mentioned), which was reported two weeks ago. Found by an airline on an aircraft in active service, Boeing have then checked some aircraft waiting for delivery and found the same on one aircraft, they told the airlines to check their fleets. This has gone under the radar though unless you look at the correct websites.

United have reported 5 aircraft (I don't think they have said out of how many, but they have 79 in the fleet) with loose bolts in the door plug area. They weren't the same across all 5 aircraft either. From looking at the photo, I don't see why you would even touch those bolts to remove the door plug. And Alaska Airlines have found more aircraft with loose hardware.

They've only found those loose items because they've looked at that specific area. So in my opinion there is a possibility of more loose items being found if they checked critical areas on the aircrafts.

The 5 United aircraft were also delivered during a 10 month period between November 2022 to September 2023.

Edited by airbusA346 on Tuesday 9th January 16:58

Speed 3

4,669 posts

121 months

Tuesday 9th January
quotequote all
GliderRider said:
Speed 3 said:
That's the problem with grandfather rights. Clean sheet design needs to comply to all new rules. Frankenstein monsters of old designs patched up with some digital stuff don't compare.

The 737Max is a Ford Cortina with a Duratec engine, iPad screwed to the dashboard with some self-tappers and acres of fake composite glued to the bumpers. Boeing should have pushed ahead with a brand new design.
A lot of it is about pilots not having to get another type rating. When launched Boeing said that an active 737NG rated pilot would not need any simulator time to fly the 737 Max, only requiring 'Level B' training. This may have been a contributing factor to pilots not being taught to handle faults in the MCAS system.

737 Max Pilot Training Requirements
...and a lot of that was driven by Southwest who'd always had too much influence over the 737 from keeping it low to the ground at the start to systems commonality to pilot ratings. At some point you just have to take it on the chin to overtake the competition after a period of disadvantage. Rolls is in the same boat now for medium engines.

It will be interesting to see where Airbus go next as the A320 is fundamentally an 1980's design just with a lot more built in headroom for development than the 737 was, even from the start. Suspect the A220 will fill the bottom end whilst they look at an A321 replacement. That will have Boeing pants down in everything up to 250 seats. That's not good for the industry either. Boeing needs some ballsy decisions (a la 747) and a complete rethink on Engineering & Quality.

I'm sure a good slug of 737Max rated pilots are looking in other directions right now.

airbusA346

813 posts

155 months

Tuesday 9th January
quotequote all
Sounds like O'Leary/Ryanair are starting to worry this will causes problems for them too.

airbusA346

813 posts

155 months

Tuesday 9th January
quotequote all
Speed 3 said:
...and a lot of that was driven by Southwest who'd always had too much influence over the 737 from keeping it low to the ground at the start to systems commonality to pilot ratings. At some point you just have to take it on the chin to overtake the competition after a period of disadvantage. Rolls is in the same boat now for medium engines.

It will be interesting to see where Airbus go next as the A320 is fundamentally an 1980's design just with a lot more built in headroom for development than the 737 was, even from the start. Suspect the A220 will fill the bottom end whilst they look at an A321 replacement. That will have Boeing pants down in everything up to 250 seats. That's not good for the industry either. Boeing needs some ballsy decisions (a la 747) and a complete rethink on Engineering & Quality.

I'm sure a good slug of 737Max rated pilots are looking in other directions right now.
Can't imagine the A321 is going anywhere anytime soon, especially with the new XLR.

captain_cynic

12,370 posts

97 months

Tuesday 9th January
quotequote all
Eric Mc said:
magpie215 said:
In some respects Boeing may have been better off developing the 757 rather than the 737.
That was my thinking too - but the 757 line was shut down over ten years ago so reinstating it would have been as expensive as a brand new design.

And it's still an old style "tin" aeroplane.
That's exactly what Boeing were doing when they were caught with their pants down, the NMA (New Midsize Aircraft) was a clean sheet design to fill the gap left by the 757 and 767 but longer range narrowbodies have killed that market, thus Airbus isn't selling many A330neo.

Also the 757 would have needed a lot of redesign to fulfil the role of the 737, it's too long to be a regional or even feeder airliner. Airlines are trying to reduce the number of types in their fleets.

They should have been working on a clean sheet design for the 737, it's a design from the 60s where as the A320 is from the 80s, Airbus had room to sling bigger engines underneath, Boeing didn't but insisted on doing it anyway.

It's not like it would have hurt sales getting a new type certification, definitely not as much as 2 fatal crashes (thus far).

FourWheelDrift

88,726 posts

286 months

Tuesday 9th January
quotequote all
At least the Boeing simulator is very realistic.


GliderRider

2,159 posts

83 months

Tuesday 9th January
quotequote all
Speed 3 said:
...and a lot of that was driven by Southwest who'd always had too much influence over the 737 from keeping it low to the ground at the start to systems commonality to pilot ratings. At some point you just have to take it on the chin to overtake the competition after a period of disadvantage.
Letting one or two civil customers dictate an aircraft's design has been shown time after time to be flawed strategy. BEA/Trident BOAC/VC-10 are just two examples.

b0rk

2,315 posts

148 months

Tuesday 9th January
quotequote all
I thought the requirement to keep conversation training to a minimum was driven more by Boeing trying to make commercial consideration of A320neo unattractive to existing NG operators such as South West Airlines.
The retraining cost for switching would have been a considerable burden.

IMHO the response to A320neo should have been a clean sheet design and short term pain. Airbus don’t have and couldn’t supply the entire market anyway so NG would have still gained some orders from existing operators during the interim period.

Speed 3

4,669 posts

121 months

Tuesday 9th January
quotequote all
b0rk said:
I thought the requirement to keep conversation training to a minimum was driven more by Boeing trying to make commercial consideration of A320neo unattractive to existing NG operators such as South West Airlines.
The retraining cost for switching would have been a considerable burden.

IMHO the response to A320neo should have been a clean sheet design and short term pain. Airbus don’t have and couldn’t supply the entire market anyway so NG would have still gained some orders from existing operators during the interim period.
Presume you mean conversion !

It is true that retraining a whole fleet of existing pilots does cost money in the short term but you get over it and you've got the next type for 20-25 years usually.

I was on the selection team in the competition between NEO & Max for a very well known A320 airline and the transition costs to Max were not a significant factor, it would just have been a bit painful to manage but we'd done it the other way previously. Airbus were so desperate not to lose us that we got a sticker price we couldn't refuse.

Part of the issue for Boeing was the timeline. They prevaricated so long after Airbus announced the A320NEO that the entry into service of even a 737 derivative to compete meant them facing massive sales bleed whilst the new one was designed & certified. What they should have done was anticipated and pre-empted Airbus with a new design years before given their cash cow was 20 years older than Airbus's. Cash cow is the key phrase though, they got giddy on the NG orders and margins thinking it would never end.


alangla

4,918 posts

183 months

Tuesday 9th January
quotequote all
Speed 3 said:
Presume you mean conversion !

It is true that retraining a whole fleet of existing pilots does cost money in the short term but you get over it and you've got the next type for 20-25 years usually.

I was on the selection team in the competition between NEO & Max for a very well known A320 airline and the transition costs to Max were not a significant factor, it would just have been a bit painful to manage but we'd done it the other way previously. Airbus were so desperate not to lose us that we got a sticker price we couldn't refuse.

Part of the issue for Boeing was the timeline. They prevaricated so long after Airbus announced the A320NEO that the entry into service of even a 737 derivative to compete meant them facing massive sales bleed whilst the new one was designed & certified. What they should have done was anticipated and pre-empted Airbus with a new design years before given their cash cow was 20 years older than Airbus's. Cash cow is the key phrase though, they got giddy on the NG orders and margins thinking it would never end.
Assuming you’re meaning the Orange tails, did having an established larger design in the A321 swing it vs the new Max 9 or 10?
I notice there’s not a lot of the A321s in said fleet but I guess they give some useful extra capacity on the busiest routes.

Also interesting that Leeds’ favourite holiday airline went for the A321Neo to replace their 757s. You’d have thought the Max 10 would be the obvious choice but they must have been more impressed with the Airbus after they bought some used CEOs.

Bradgate

2,839 posts

149 months

Tuesday 9th January
quotequote all
Speed 3 said:
That's the problem with grandfather rights. Clean sheet design needs to comply to all new rules. Frankenstein monsters of old designs patched up with some digital stuff don't compare.

The 737Max is a Ford Cortina with a Duratec engine, iPad screwed to the dashboard with some self-tappers and acres of fake composite glued to the bumpers. Boeing should have pushed ahead with a brand new design.
Spot on. The reality is that developing a new clean-sheet narrowbody 20 years ago would have cost Boeing $Billions, and that would mean less money to pay shareholders’ dividends & executive bonuses. So they keep slapping another coat of lipstick on the same old 1960s pig.

Speed 3

4,669 posts

121 months

Tuesday 9th January
quotequote all
alangla said:
Assuming you’re meaning the Orange tails, did having an established larger design in the A321 swing it vs the new Max 9 or 10?
I notice there’s not a lot of the A321s in said fleet but I guess they give some useful extra capacity on the busiest routes.

Also interesting that Leeds’ favourite holiday airline went for the A321Neo to replace their 757s. You’d have thought the Max 10 would be the obvious choice but they must have been more impressed with the Airbus after they bought some used CEOs.
I couldn't possibly confirm my employer of the time biggrin

Back then it was about replacing A319's with A320's but we did put options in for the A321 which did get firmed later. The larger Max's weren't even firmed up as customer offers at that time. Even the -8/-9 were not fully frozen designs and in the presentations there was definitely no mention of MCAS despite us asking about thrust lines at TOGA power.

I think the Leeds airline's choice may have been influenced by a certain Fleet Procurement Director that left after I did and who ended up there......That said the A321(X)LR is as near as it comes to a 757 for the times and that was very popular on those type of ops.

GliderRider

2,159 posts

83 months

Tuesday 9th January
quotequote all
Given the mention of A320NEOs, does anyone happen to know what the primary bottleneck is in producing them more quickly? Is it wings, engines, final assembly, or something else?
As I understand it there are four final assembly sites,Toulouse, Hamburg, Tianjin (China) and Mobile, Alabama. Are all the wings made at Broughton, or are there other sites making them?

Edit, I've just read that China makes A320 wings for locally assembled aircraft. Are there any other A320 series wing manufacturing sites planned?

Edited by GliderRider on Tuesday 9th January 21:25


Edited by GliderRider on Tuesday 9th January 21:36

hidetheelephants

25,119 posts

195 months

Tuesday 9th January
quotequote all
GliderRider said:
Given the mention of A320NEOs, does anyone happen to know what the primary bottleneck is in producing them more quickly? Is it wings, engines, final assembly, or something else?
As I understand it there are four final assembly sites,Toulouse, Hamburg, Tianjin (China) and Mobile, Alabama. Are all the wings made at Broughton, or are there other sites making them?
I'd imagine the wings being the biggest bottleneck with the fuselage close after, being huge lumps of composite there's only so fast they can be made and tooling up for another line and recruiting techs to run it would be a big hurdle.

Speed 3

4,669 posts

121 months

Tuesday 9th January
quotequote all
Engines have been the primary critical path for the last couple of years, particularly with Pratt's problems. It also comes down to industrial risk even if you have the order book. These things take years to ramp up and similar to ramp down (without incurring massive stop costs). Covid taught us that even the traditional factors such as economics, wars and finance weren't the only considerations.

MarkwG

4,880 posts

191 months

Tuesday 9th January
quotequote all
Speed 3 said:
That's the problem with grandfather rights. Clean sheet design needs to comply to all new rules. Frankenstein monsters of old designs patched up with some digital stuff don't compare.

The 737Max is a Ford Cortina with a Duratec engine, iPad screwed to the dashboard with some self-tappers and acres of fake composite glued to the bumpers. Boeing should have pushed ahead with a brand new design.
I agree, but I think it's worse than that: it's applying grandfather rights to a BMW Mini, based on it being the same as an Austin Mini Minor...

The problem is, they made an early call to fight Airbus with the 737. Now they're too far down the track to reverse back up.

hidetheelephants

25,119 posts

195 months

Tuesday 9th January
quotequote all
Speed 3 said:
Engines have been the primary critical path for the last couple of years, particularly with Pratt's problems. It also comes down to industrial risk even if you have the order book. These things take years to ramp up and similar to ramp down (without incurring massive stop costs). Covid taught us that even the traditional factors such as economics, wars and finance weren't the only considerations.
Someone mentioned it here on another thread, RR not having an engine in this sector must hurt them a great deal.

airbusA346

813 posts

155 months

Tuesday 9th January
quotequote all
alangla said:
Assuming you’re meaning the Orange tails, did having an established larger design in the A321 swing it vs the new Max 9 or 10?
I notice there’s not a lot of the A321s in said fleet but I guess they give some useful extra capacity on the busiest routes.

Also interesting that Leeds’ favourite holiday airline went for the A321Neo to replace their 757s. You’d have thought the Max 10 would be the obvious choice but they must have been more impressed with the Airbus after they bought some used CEOs.
They've got 270 on order (to be distributed around the group).