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Posted

Lot of info in the /r/Aviation megathread here:

 

 

  • Apparently the #1 engine fell off the airplane completely on the takeoff roll. Also heard from a buddy at UPS that they were on a 2 hour maintenance delay for the #1 engine before they left.
    • that would explain why the flames on the wing were so massive - not engine on fire, the fuel just gushing out of the wing, wonder what that does for systemwide fuel pressure
    • Headed to Honolulu, so massive amount of fuel onboard.

  • MD-11s have a recurring issue with known, unknown problems. Phantom electrical stuff that comes and goes. They throw what parts they can at it until it powers up and send it, they have done this for a very long time. Lots of parts cannot be sourced, most is "refurbed" stuff that is not ever up to OEM spec - which wasn't great to begin with.
  •  
Posted (edited)
53 minutes ago, DrDawkinstein said:

Lot of info in the /r/Aviation megathread here:

 

 

  • Apparently the #1 engine fell off the airplane completely on the takeoff roll. Also heard from a buddy at UPS that they were on a 2 hour maintenance delay for the #1 engine before they left.
    • that would explain why the flames on the wing were so massive - not engine on fire, the fuel just gushing out of the wing, wonder what that does for systemwide fuel pressure
    • Headed to Honolulu, so massive amount of fuel onboard.

  • MD-11s have a recurring issue with known, unknown problems. Phantom electrical stuff that comes and goes. They throw what parts they can at it until it powers up and send it, they have done this for a very long time. Lots of parts cannot be sourced, most is "refurbed" stuff that is not ever up to OEM spec - which wasn't great to begin with.
  •  

 

This is very similar to American 191, where an engine fell off on takeoff from a DC-10, the predecessor to the MD-11. That was attributed to bad maintenance practices that compromised the engine mounts to the point of failure. 

 

Im not completely surprised that UPS aims the parts cannon at problems, especially for older planes like this. They, like all airlines, are under a lot of pressure to keep their planes in the air. If they are in hangars they aint making money. 

Edited by RkFast
Posted

Flying an aging fleet with a *very* constrained parts supply chain and a dwindling pool of mechanics familiar with its complicated systems caught up to UPS.  

 

I've never understood why UPS and FedEx keep flying these planes.  There have to be plenty of used twin-jet planes to buy.  

Posted
1 hour ago, dpberr said:

Flying an aging fleet with a *very* constrained parts supply chain and a dwindling pool of mechanics familiar with its complicated systems caught up to UPS.  

 

I've never understood why UPS and FedEx keep flying these planes.  There have to be plenty of used twin-jet planes to buy.  

 

What costs more? Cleaning up this mess that is probably insured in a number of ways, or proactively spending the capital to replace an entire fleet of jets?

 

The knew the risks, and I'm sure had these costs analyzed and baked in.

  • Agree 1
Posted
16 minutes ago, DrDawkinstein said:

The knew the risks, and I'm sure had these costs analyzed and baked in.

A truck breaks down, and most times you park it on the shoulder of the road.  A plane breaks down, and a whole new level of crap hits the fan.

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