The much-hailed inspection technique for checking orbiter TPS (Thermal Protection System) damage on-orbit will need modifying for a number of Shuttle missions.
The 50 foot long arm, which includes the OBSS (Orbiter Boom Sensor System) instrumentation package – integral for scanning the TPS of the orbiter – can’t be carried into orbit due to weight restrictions, interferences and/or unacceptable clearances between the boom and the ISS cargo elements.