Hola IGh -
xxx
Read posts nš 41 and 42 above.
Exactly as you state in your own post.
At the time of the accident 1969, I was a brand new PanAm 727 F/E.
This accident was subject of long briefings in classrooms and simulator.
xxx
N7434U was a QC - Yes there was a slight difference with PAX 727s
On 727C/QC the BAT + GALLEY PWR switches were placed next to each other.
There was then NO GUARD on 727 BAT SW.
The F/E intended to reduce KW load on the remaining GEN.
One of the first power reduction items on CK-LIST is "GALLEY PWR - OFF".
Unfortunately, he moved the BAT SW to OFF. Killed all power and lights.
xxx
After the accident, a GUARD (RED) was placed on BAT switches.
And SAI with independant battery power were installed as new requirement.
xxx
So, exactly as you describe. What is your point...?
Do you have 20/20 vision in the dark...?
Happy contrails