Tightened nut around ball lift plunger.
Cleaned and waxed playfield, replaced balls, cleaned glass on both sides.
Most lights were out. Light fuse was good. Traced lights wire to lock relay. Pushing on the lower switch turned the lights on. Filed switch surfaces with metal file. Lights now work.
Loose playfield element fixed. Lights have a newer problem report.
With Trade Winds, missing lights are normally a Jones plug or other contact issue, rather than the bulbs themselves.
This problem was due to playfield bumpers having loose screws and rotating into the bumper skirts. That set off the bumper continually. Tightened all playfield bumper mounting screws.
Cleaned backbox switches. Messing around with them does not change anything
Status changed: Broken → Good
Cleaned solenoid interiors and shafts in back box, problem persists.