No, according to FAA Order 8130.21H, the following terms are approved to be used in Block 11 on an FAA Form 8130-3 for a Return to Service:

• "Overhauled"
• "See Block 12"
• Repaired
• "Inspected" and/or "Tested"
• "Modified"

Block 11 is meant to reflect the majority of the "work performed" by the organization.

So, what is the term "Serviceable"?
Over the years, the aviation industry adapted the trade term "Serviceable" to imply a general "condition" of the unit. For sales purposes, Serviceable, more or less, differentiates between "Overhauled" parts and all other non-New parts that still included a Return to Service. The term "Serviceable" is widely used on many unofficial, non-FAA documents such as a company's quotes, invoices, or other related documents.