RRR
I have never stated that l have flown an NDB arrival without an ADF.
The NDB approach l did do was line selected, verified and flown with LNAV and VNAV with the autopilot on with an ANP of around 0.05 with no intervention on the MCP except to slow down as appropriate, down to the NDB minima.
At which point the autopilot was disconnected and a safe landing was conducted. There was no RNAV on the plate however as l mentioned before the ADF needles were present with a continuos monitoring of the beacon and everything worked out well.
Is there a safety issue?
halas