What remark is entered on the DD-1574 tag when a part is used on multiple aircraft?

What remark is entered on the DD-1574 tag when a part is used on multiple aircraft?

• A. Aircraft type if part is used on single aircraft
• B. Multi
• C. Date installed
• D. Lot number

Answer: (B)

When a part has been used on more than one aircraft, the remarks field on the DD-1574 tag is marked to reflect that broader usage. The appropriate entry is “Multi,” which signals that the part’s history spans multiple airframes and may require additional traceability. If the part had been installed on only a single aircraft, you’d mark the aircraft type in the remarks to identify that specific installation context. The date installed notes when the part went in, not how many aircraft it has served, and the lot number is for manufacturing tracking, not for indicating usage across multiple airframes.

When a part has been used on more than one aircraft, the remarks field on the DD-1574 tag is marked to reflect that broader usage. The appropriate entry is “Multi,” which signals that the part’s history spans multiple airframes and may require additional traceability. If the part had been installed on only a single aircraft, you’d mark the aircraft type in the remarks to identify that specific installation context. The date installed notes when the part went in, not how many aircraft it has served, and the lot number is for manufacturing tracking, not for indicating usage across multiple airframes.