The escape
Receiving inspection on vendor-machined hardware, a part family I had inspected thousands of times. Standard incoming inspection to the print.
One machined depth read a few thousandths off target. Close enough to pass a glance, outside tolerance on the gage. [CONFIRM: did I re-measure and check a second piece before holding the lot, or hold on the first reading?] I held the lot and wrote it up the way I write everything: the characteristic and its print reference, the requirement, the gage and its calibration status, the readings to the print's decimals, where on the part, how many pieces and which lot, where I put them, and what I recommended.
The investigation traced the condition back years. More than 13,000 suspect pieces, all of which had cleared prior inspection. Nobody else had caught it.
The supplier corrective action and the escape documentation were both built on that first write-up. Months later I read through the whole package and the description of the nonconformance was still my wording, unchanged, because nobody had needed to come back and ask what I meant. RTX recognized it with a SPOT award, which is an internal safety and quality recognition that doesn't get handed out much.
The award was nice. The thing I'd point at is that one write-up held as the record for a multi-year escape without a single clarifying conversation.