The US National Transportation Safety Board (NTSB) on 11 March released urgent safety recommendations for the redesign by Rolls-Royce of the fuel-oil heat exchanger on Trent 800 engines powering Boeing 777s.
NTSB says Rolls-Royce is already working on a redesign that could be available in twelve months, but still felt compelled outline the need for the heat exchanger overhaul.
The January 2008 dual engine roll-back of a British Airways 777 and a single-engine roll-back in November 2008 of a Delta Air Lines 777 prompted two NTSB recommendations.
Picture of the exchanger available via link above.
How will this affect SQ?
reduced air travel already.
no problem lah
FAA issued AD.
SQ being an avid fan of RR other than the 773ERs, i think it will be a huge maintenace problem for the team because this means all of their engines will need to be worked on in one way or another.