What was found
HEADING FLAG ILLUMINATES IN FLIGHT. NR 1 AND NR 2 DIRECTIONAL GYROS INDICATE PLUS OR MINUS 40 DEGREES. PROBLEM ISOLATED TO NR 1 DIRECTIONAL GYRO. REMOVED AND REPLACED NR 1 GYRO. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
HEADING FLAG ILLUMINATES IN FLIGHT. NR 1 AND NR 2 DIRECTIONAL GYROS INDICATE PLUS OR MINUS 40 DEGREES. PROBLEM ISOLATED TO NR 1 DIRECTIONAL GYRO. REMOVED AND REPLACED NR 1 GYRO. (M)