SevereLoose / corroded boltResolvedtoday
Documented fatal bolt failure on 2015-03-13. The original ~1992 3/8-inch zinc-plated buttonhead bolt failed under body weight from hidden subsurface stress-corrosion cracking (roughly 23-year-old end-of-life sport hardware), a textbook case of why bolt age matters. Sources: American Alpine Club Accidents in North American Climbing; Rock and Ice; Mountain Project.
Resolution: Historical incident curated by AnchorBeta from public accident reports. Hardware presumed replaced after the 2015 fatality; independently assess all fixed gear before use.