As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAXIING OUT FOR FLIGHT 1206 FROM HOW, NR 2 ENGINE NACELLE OVERHEAT WARNING LIGHT CAME ON. SHUT DOWN ENGINE AND RETURNED TO BLOCK. FOUND LOOSE 'B' NUT ON NR 2 ENGINE. PERFORMED ENGINE RUN, SYSTEM OPS CHECKED GOOD PER MM CH 75. (M)