Oct 3 American Airlines said an internal
investigation has revealed improperly installed clamps caused
some seats to loosen in six of its aircraft and would inspect
the seats in other planes.
On Monday the company said it had temporarily grounded eight
aircraft after some seats came loose on two flights.
"Our maintenance and engineering teams have discovered that
the root cause is a saddle clamp improperly installed on the
foot of the row leg," the company said in a statement.
The airline, whose parent AMR Corp filed for
bankruptcy protection in November, is inspecting all 47 of its
102 Boeing 757 aircraft which have the same type of seat.
The Federal Aviation Administration is aware of the
internal review and its findings, the company said.
The airline has already suffered disruptions to its flights
due to a long-running labor dispute with its 8,000 pilots, who
are expected to authorize a strike this week.