>>NTSB Meeting Next Month On Palmer Candy Factory Explosion (West Reading, PA) -- The National Transportation Safety Board will meet next month to determine the probable cause of the explosion at the R.M. Palmer candy factory in West Reading. The board will hold a public meeting in Washington, DC on December Tenth to vote on the findings of the investigation. Authorities said the explosion last year was caused by a natural gas leak in the basement. Seven people were killed and ten others were injured.