Old Boeing Driver:
I think there were posts about the PAPI's and MSAW.
If I remember, the PAPI's were on and the tower had disabled the MSAW due to so many false alerts.
I'll go back through and see what I can find.
The only information I have are from the three Robert Sumwalt video tapes, still on the NTSB site.
My recollections:
He said there was no MSAW warning. He didn't say it was either working or not working.
His only comment about the PAPI was that it was flight inspected the next day and the lights were properly aligned. He made no comment about whether the PAPIs were on or off at the time of the accident.