(CBS4/CNN) — New information reveals the Federal Aviation Administration had concerns about the plane engine that exploded during a United Airlines flight over Broomfield last weekend.

United Flight 328 suffered engine failure Saturday shortly after takeoff.

READ MORE: 'Metal Fatigue' A Factor In United Airlines Flight 328 Engine Failure

The FAA had a meeting, just days before the explosion, to talk about requiring more frequent inspections for those specific engines, according to CNN.

(credit: CBS)

The united flight had just taken off from Denver International Airport when the right-side Pratt and Whitney  PW4000 engine shredded.

READ MORE: Exclusive: New Photos Of United Plane Show Hole Torn In Fuselage

Regulators were requiring fan blade wear and tear inspections every 6,500 cycles — with one cycle being every time the engine is turned on. The source cited by CNN says the one that failed over Broomfield was quote “far short” of 6,500.

On Tuesday, the FAA directed air carriers to inspect all Pratt & Whitney engines similar to the one that dramatically failed on a United Airlines flight on Saturday.

The directive effectively grounds the Boeing 777-200 planes that use this specific PW4000 series engine, but the only US operator with this type of engine in its fleet, United Airlines, already said Sunday that it would immediately pull 24 planes from flying “out of an abundance of caution.”

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(© Copyright 2021 CBS Broadcasting Inc. All Rights Reserved. CNN contributed to this report.)  

Anica Padilla