Lauda Air Flight 004
5 minutes into the flight, the pilots received a master caution "REV ISLN VAL" advisory on the EICAS display, accompanied with the master caution tone. First Officer Thurner replied with an expletive. Captain Welch replied, "that keeps coming on". The crew discussed the issue as Thurner looked through the quick reference handbook for a solution, but the handbook then quoted "additional system failures may cause in-flight deployment", and to "expect normal reverser operation after landing". There was no further action required.