When an in-flight operational check is good, an aircrew member enters the remark 'OP CK GOOD' in the CORRECTIVE ACTION block.

When an in-flight operational check is good, an aircrew member enters the remark 'OP CK GOOD' in the CORRECTIVE ACTION block.

• A. OP CK GOOD
• B. OP CK OK
• C. IN FLT CHECK GOOD
• D. CORRECTIVE ACTION COMPLETE

Answer: (A)

The main idea is using a standardized remark to show the result of an in-flight operational check. When the check is satisfactory, the entry in the CORRECTIVE ACTION block should be exactly “OP CK GOOD.” This tells maintenance personnel clearly and unambiguously that the in-flight check passed and no corrective action is needed, following the established wording in TO 00-20-1 for consistent documentation. Why this is the best fit: the exact phrase “OP CK GOOD” is the designated shorthand for an in-flight operational check that is good, ensuring uniform interpretation across records and personnel. Other phrasing like “OP CK OK” isn’t the standardized remark for this field and could introduce ambiguity or be treated differently by data systems. A longer form like “IN FLT CHECK GOOD” adds unnecessary wording and isn’t the prescribed entry for this block. “CORRECTIVE ACTION COMPLETE” signals that some action was taken and finished, which is about remedial work, not the result of the check itself.

The main idea is using a standardized remark to show the result of an in-flight operational check. When the check is satisfactory, the entry in the CORRECTIVE ACTION block should be exactly “OP CK GOOD.” This tells maintenance personnel clearly and unambiguously that the in-flight check passed and no corrective action is needed, following the established wording in TO 00-20-1 for consistent documentation.

Why this is the best fit: the exact phrase “OP CK GOOD” is the designated shorthand for an in-flight operational check that is good, ensuring uniform interpretation across records and personnel. Other phrasing like “OP CK OK” isn’t the standardized remark for this field and could introduce ambiguity or be treated differently by data systems. A longer form like “IN FLT CHECK GOOD” adds unnecessary wording and isn’t the prescribed entry for this block. “CORRECTIVE ACTION COMPLETE” signals that some action was taken and finished, which is about remedial work, not the result of the check itself.