A technical review by the FAA decided the risk from an engine vulnerability does not warrant immediate action, contrary to an internal report last month.

The FAA Corrective Action Review Board, after reviewing the CFM LEAP-1B engine bird strikes, which eventually led to smoke entering the aircrafts, said that the issue does not warrant an immediate action. The agency will therefore follow standard regulatory processes to address them, Reuters reported.

An internal memo recommends a design change to fix an engine risk on the 737 MAX, in addition to informing pilots of the risk and changing takeoff procedures.

FAA Corrective Action Review Board reviewed the CFM LEAP-1B engine bird strikes which led to smoke entering two Boeing 737 MAX aircraft

The FAA evaluated bird strike concerns on Boeing 737 MAX engines, opting not to require immediate action. The review board found no urgent issue, though further assessments and procedure amendments are being considered.

The FAA is considering new takeoff instructions for pilots of Boeing 737 Max jets to prevent smoke from entering the cabin if a bird flies into the engine.

Boeing’s (BA) long, difficult year kicked off with a 737 Max door plug blowout, and now a new part is drawing scrutiny from federal investigators. Reuters reports that the Federal Aviation Administration is looking into problems with the planes’ engines after a pair of bird strikes last year aboard a pair of Southwest Airlines (LUV) flights.