Check out these photos that were captured and posted out in Broomfield, where police shared images of massive chunks of debris from what appears to be the turbine engine and other parts of the plane laid scattered about on the lawns of folks in neighborhoods below.

It's pretty freaky ... but it sounds like, for now, nobody was struck by any of this stuff falling from the sky -- which appears to have broken off from the wings and other parts of the aircraft.

Broomfield PD is instructing folks not to touch the debris and to leave it where it landed, so that the National Transportation Safety Board -- the federal agency that investigates situations like this -- can come out to take a look, and determine what's what.

BPD posted more photos of other parts of the plane, which seem to have landed at a park ... on a turf field, no less. Again, it's a miracle no one was hit by any of it -- just about anything falling from that high of an altitude could easily kill someone who wasn't paying attention.

It sounds like if you were in the area and outside, you couldn't have missed this ... because people captured footage of the plane when it first started going up in flames -- and it apparently made a loud boom noise. You can see a huge cloud of black smoke it left behind in the air too -- and it certainly disrupted neighbors in the area.

BTW, people on the flight itself caught some of the malfunction live ... and it looks terrifying. Imagine being on board and having to wait for this to be resolved ... not being able to do a thing about it.

This story has a happy ending ... the plane -- a United flight -- is said to have landed safely at Denver International Airport -- where it had departed on its way to Honolulu. Investigators are looking into what caused the engine failure.