As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6041 - BOS-LGA - WHILE ON APPROACH FOR LANDING AT LAGUARDIA AIRCRAFT HAD AN UNDER VOLTAGE ON NR 1 GENERATOR. EXECUTED A GO-AROUND AND RAN CHECKLIST FOR ELECTRICAL FAILURE. REPLACED NR 1 GENERATOR, OPERATIONAL CHECK NORMAL IAW MM CHAPTER 24-20-1. (M)