B767-300 and 300 ER
Flight Crew Last 90 Days 60; Flight Crew Total 12000; Flight Crew Type 5000
Troubleshooting
Aircraft Equipment Problem Critical; Ground Event / Encounter FOD
Aircraft Aircraft Damaged; General Maintenance Action
Aircraft
Normal flight; touched down at Target speed (V REF + 5) on the aim point and deployed thrust reversers to full reverse. At 80-60 KTS reversers were returned to idle; and clearing the runway reversers were stowed. Proceeding down Taxiway P; EICAS message: 'idle disagree' was observed and the right reverser indicated unlocked (amber REV). There was no indication of asymmetric thrust. Captain cycled right reverser lever and re-stowed. EICAS message and unlocked indication disappeared. Upon block-in Mechanic called on the intercom and asked if there had been a problem with the right reverser. Captain related above information; and Mechanic responded that there was a piece of metal sticking out of the engine. Logbook entry made with Mechanics comments added. Upon exiting aircraft; right engine was observed to have a substantial piece of metal; approximately 10 inches X 18 inches protruding from bottom of cowling. There was no visible evidence of FOD damage to the fan blades or fan duct.
After landing; the B767-300 EICAS alerted IDLE DISAGREE and the REV light illuminated. The Captain cycled the reverse making the lights extinguish; but at the gate a Mechanic observed a piece of metal protruding from the engine cowling bottom.