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21 MAR (Wash DC - open hearing) • spare parts → enough info • reconstruction (failure analysis) • R SRB recovery estimated complete in 2-3 wks [[strikethrough]]✓[[/strikethrough]]Call A[[superscript]]2[[/superscript]] (working group reports) Dan Germany • .8 → 2.25 sec ⇒ puffs of smoke (at ~ 3 Hz...maybe). Smoke is varying shade of gray (not white, then black) • 270°→ 315° (around 300°), ±1 ft of jnt • photo team will make some recommendations in its report • "flashes" @ ~ 45 sec probably not peculiar to 51L (assoc w/SSME plume) Dr Littles (MSFC) • ET failure due to structural flaw → eliminated • debris eliminated (incl. springs) [ice wouldn't penetrate tank; debris not seen in photos]