Blurring the distinction between fact and fiction -
Ernest K. Gann's "
Band Of Brothers" is a story of airline pilots seeking to exonerate one of their own after an approach accident. They form their own navaids check team, fighting a government straitjacket, and eventually find what led their colleague astray.
The story is a fictional appendix to a real accident -
Accident Database: Accident Synopsis 02161968
... and lends some insight into the investigation process.