1 00:00:06,869 --> 00:00:03,750 at nasa's kennedy space center in 2 00:00:08,950 --> 00:00:06,879 florida technicians at launch pad 39a 3 00:00:11,190 --> 00:00:08,960 are working to repair small cracks on 4 00:00:13,110 --> 00:00:11,200 the tops of two metal support beams 5 00:00:16,470 --> 00:00:13,120 called stringers on space shuttle 6 00:00:18,870 --> 00:00:16,480 discovery's external fuel tank teams 7 00:00:21,109 --> 00:00:18,880 have built an environmental enclosure in 8 00:00:23,029 --> 00:00:21,119 an area around the stringers which will 9 00:00:25,349 --> 00:00:23,039 provide the proper temperature and 10 00:00:27,349 --> 00:00:25,359 humidity when foam insulation is 11 00:00:29,830 --> 00:00:27,359 reapplied to the tops of the stringers 12 00:00:32,310 --> 00:00:29,840 following the repairs 13 00:00:34,709 --> 00:00:32,320 video b-roll includes lipstick camera 14 00:00:37,110 --> 00:00:34,719 views from inside the enclosure and 15 00:00:39,190 --> 00:00:37,120 video of a technician holding a new 16 00:00:40,950 --> 00:00:39,200 section of middle called a doubler that 17 00:00:43,430 --> 00:00:40,960 will be installed on the stringer as 18 00:00:45,590 --> 00:00:43,440 part of the repair method it's called a 19 00:00:48,069 --> 00:00:45,600 doubler because it's twice as thick as 20 00:00:50,150 --> 00:00:48,079 the original stringer metal 21 00:00:52,389 --> 00:00:50,160 the stringer crack developed as the 22 00:00:54,470 --> 00:00:52,399 external tank was being filled for 23 00:00:55,950 --> 00:00:54,480 discovery's launch attempt on november 24 00:00:57,990 --> 00:00:55,960 5th for its 25 00:00:59,990 --> 00:00:58,000 sts-133 mission through the 26 00:01:01,990 --> 00:01:00,000 international space station 27 00:01:04,229 --> 00:01:02,000 that launch attempt was scrubbed because 28 00:02:06,950 --> 00:01:04,239 of a hydrogen gas leak which other 29 00:02:09,910 --> 00:02:08,790 patty and see if we can't reduce it as 30 00:02:11,110 --> 00:02:09,920 we go 31 00:02:30,790 --> 00:02:11,120 she was thinking it was over here in the