At one point during the examination, the air-safety agency observed mechanics at Spirit using a hotel key card to check a door seal, according to a document that describes some of the findings. That action was “not identified/documented/called-out in the production order,” the document said.
In another instance, the F.A.A. saw Spirit mechanics apply liquid Dawn soap to a door seal “as lubricant in the fit-up process,” according to the document. The door seal was then cleaned with a wet cheesecloth, the document said, noting that instructions were “vague and unclear on what specifications/actions are to be followed or recorded by the mechanic.”
The use of hotel keycards and Dawn dish soap in the production of a $100 million aircraft is alarming, and one that Spirit describes as a “nonconformity.” Now, company spokesperson Joe Buccino told the Times that the manufacturer was “reviewing” any identified issues for “corrective action.”