As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 2 ENGINE FAILED TO START. ACFT GROUNDED. FOUND MOISTURE AND POSSIBLE CORROSION IN THE LT EXCITER BOX AT THE IGNITION LEAD CONNECTION. REPLACED THE LT EXCITER BOX IAW MM 74-11-01 AND CLEANED AND DRIED THE IGNITER LEAD. OPS CHECKED GOOD. STARTED ENGINE SEVERAL TIMES, OPS CHECKED GOOD.