Lost the engine over AZ and continued to SAN? Sounds like some urban legend mixed with truth to make for a good narrative.
No, it happened. I remember it. Mid-80s, IIRC. Believe they found the engine on the ground not to far from my home city here (TUS). They did continue to SAN thinking that they had merely 'lost an engine' (engine failure), not LOST an engine (engine go buh-bye)!!