As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 INS FAILED WENT ATT MODE. TRANSFERRED TO DMI LIST AS CONTROL D-9272201-1175 CAT: D MEL 3420 ATA 3410 DUE DATE 11JUL01 PLACARD INSTALLED. REMOVED AND REPLACED NR 1 INU PERFORMED OPERATIONAL CHECK IAW SUPPLEMENTAL MANUAL CHECK GOOD. THIS CLEARS DMI D9272201- 1175, PLACARD REMOVED.