Bad glue causes F-22A mishap

Lockheed Martin delivered the first 30 F-22As with an inadequate adhesive — dubbed C493 — for low observable (LO) coatings.

The manufacturer has since fixed the problem, but the first 30 airframes are stuck with the bad glue.

There’s a reason we now know this bit of F-22A arcana. On November 1, a small patch of LO material sheared off the inlet for the right engine on takeoff. The material was sucked into the engine, causing more than $1.2 million in damage.

I reported about the mishap on this blog on Monday, a few days before the Air Combat Command released the accident investigation report. The report attirbutes the Class A mishap mainly to the poor adhesive used to attach the LO to the engine inlet.

That’s one mystery solved.


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One Response to Bad glue causes F-22A mishap

  1. asbestosis 17 November, 2010 at 3:35 pm #

    my business is curious to know as long as they get notified of the unfriending?

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