Igniting Oxygen
For interest. Early 707, supplementary oxygen bottle stowed on Flt. Deck rear wall near Flt. Eng. panel. Flt. Eng. hung his uniform cap on bottle, hat had plastic square inside to prevent hair grease staining the fabric which of course became greasy. O2 bottle valve had slight leak, hat caught fire, fortunately with no serious consequences. Doesn't help present problem but shall we wait for some FACTS now ? Thank you.