The 2011 Annual Inspection of N631S is history. Mike the IA finished all the work and had the airplane closed up last Tuesday morning. The CorrosionX treatment was completed and the replacement ELT and new voltage regulator were installed.
Zeftronics R15V00(Rev A) solid state unit with an integral over-voltage sensor. The existing (and occasionally troublesome) over-voltage sensor was removed. The old voltage regulator was original equipment.
Wednesday morning I returned all of the loose items to the aircraft and during the day the line crew at Three Wing washed it. Then Thursday morning I took it up for a brief (0.4 hour) test flight. There was only one squawk - when I did my pre-flight I found that one of the landing lights was not illuminating. I wasn't about to tell Mike to pull the cowling off again just for that; I'll replace it at the next oil change.
The new voltage regulator controlled the bus voltage at about 13.2v with all of the night operations "stuff" turned on, where the old one was giving me barely more than 12v. I expect this will put an end to the weak-battery disease that has plagued N631S over the last couple of winters.
With a successful return-to-service test flight completed, N631S and I were all set for a Friday afternoon flight back to the DC area...which is fodder for another post.