The 747: A Tumultuous Beginning. Flying Through Turbulence by Ron Marasco (2015)(**)
The 747: A Tumultuous Beginning tells the next riveting chapter in the storied plane’s early history, revealing details of serious in-flight incidents and extraordinarily poor engine reliability and aircraft maintenance problems confronting the employees of Pan American World Airways and other airlines with 747 fleets.
https://www.amazon.com/747-Tumultuous-Beginning-Through-Turbulence-ebook/dp/B00T4S6BZC/