Firewatch A spark created by a crane lifting a scrapped automobile ignited residual fuel or some other accelerant, investigators found, leading to a sizable barge fire. D.J. SONSTENG PHOTOGRAPHY 74 | NFPA JOURNAL * M A Y / J U N E 2 0 2 0 Firewatch_05.20_V2.indd 74 5/1/20 11:42 AM