A referee or the WCAB may correct a mistake in its original order, but may not grant a rehearing to review facts establishing liability. See McLean v Eaton Mfg Co, 286 Mich. 285, 294; 282 N.W. 150 (1938); Hunt v Genesee Foundry Pattern Engineering Co, 353 Mich. 205, 208; 91 N.W.2d 286 (1958); Dean v Great Lakes Casting Co, 78 Mich. App. 664; 261 N.W.2d 34 (1977). Here, the original decision was issued when MCL 418.851; MSA 17.237(851) allowed fifteen days for a party to file a claim of review from a decision of the hearing referee, unless the WCAB granted further time for "sufficient cause shown."