FAA Proposes Rule to Strengthen Rolls-Royce 787 Engine Debris Protection

The FAA has proposed a new rule to ensure the safety of Rolls-Royce-powered Boeing 787s, following design changes made to the Trent 1000 engines.

According to the notice of proposed rulemaking (NPRM), operators will have four years to replace certain fan cowl parts on the right engine's inboard side to protect it from debris that could be shed by a major left-engine failure.

Boeing identified this certification gap and informed the FAA, leading to the development of reinforced cowl panels. The manufacturer recommended replacing the affected parts within four years, which is also the proposed compliance timeline in the FAA NPRM.

The issue has not been linked to any in-service incidents, but Boeing is taking proactive measures to address it. The updated parts integrate metal shielding to restore required debris protection, although neither the NPRM nor Boeing's bulletin detail the new parts' costs.