What worries me is a case of a 135 aircraft being operationally able to
dispatch (in line with the MEL) with only one serviceable xfer pump, in that
case I would be very cautious about operating near the endurance of the fuel in
the supply tanks...ie...if the remaining xfer pump stops now, can I reach fuel,
or execute a safe landing with what is in the (full) supply tanks.
Our MEL with one XFER pump U/S dispatch is only possible VFR and safe landing must be possible within 15 minutes on each phase of the planned flight. That makes sense.
skadi