Final Report: ERJ 145 had uncontained engine caused by mechanical malfunction

 - September 27, 2007, 7:23 AM

Embraer ERJ 145LR, Kansas City, Mo., May 19, 2005–The Safety Board attributed the uncontained engine failure of the American Connection flight in cruise to the fatigue failure of the fan spinner and forward fan retaining ring due to interference between the mating parts as a result of inadequate design by the manufacturer.

The fan spinner was missing and the forward fan blade retainer was missing a 90-degree section of the bolt flange from the Rolls-Royce AE3007A1 engine. Rolls-Royce initiated a one-time, on-wing eddy current inspection of all one-piece fan spinners to be accomplished within 18 months or 2,000 hours, and redesigned the fan spinn