Reverse thrust is NOT a certification requirement on transport aircraft and as such is not a requirement to have to satisfy the certified Flight Manual.
That said, however; company flight operations manuals may deal with dispatch items in a more conservative way. ie No dispatch to airports with rain in their forcasts etc.
The MEL also deals with reverser lockouts as well.
Operating techniques and flight crew training manuals also deals with the issue.
Having operated different aircraft with reversers locked out in my years has never been a difficult issue. That said however; airmanship tells us that symetrical reverse on operating units and very careful use of reverse with twin engine aircraft with one side locked out needs some care and attention.
Last edited by 777AV8R; 11th Jan 2003 at 07:24.