On Nov 15, 5:46 am, wrote:
Stuart & Kathryn Fields wrote:

The idea of climbing into a large fuel tank sure doesn't
appeal to me. Seems to me that guys who do that shouldn't be allowed to
have lighters or matches on them, huh?

Dan

The Defence Dept in AUS is having trouble with RAAF veterans who
climbed into the internal tanks on the F-111 fleet. The chemicals in
the tank sealants combined with the lack of protective clothing seem to
have been the issue. The planes are still flying and I presume they
have a current solution to protect the mechanics, but the 'Pig' has
been in service for over 30 years now - that is a lot of sick mechanics!