When a ground check cannot determine if an
aircraft and its installed equipment are functioning
properly, a functional check flight is conducted to
provide this information.
The aircraft discrepancy book (ADB) provides
maintenance and aircrew personnel with a
comprehensive chronology of flight and maintenance
performed on an aircraft for the aircrafts last 10 flights.
Once initiated, a discrepancy MAF should remain in
the right side of and ADB until the discrepancy is
corrected. When a discrepancy action is completed the
discrepancy MAF is removed from the ADB and a
discrepancy completion MAF is placed in the left side
of the ADB.
An IMA is responsible for the maintenance of
support equipment to include adjustments, removal and
replacement of parts, and period maintenance. The SE
Custody and Maintenance History Record, OPNAV
4790/51, is a record of rework, preservation and
depreservation, TD, and miscellaneous history for