14 CFR §65.77(b) requires at least 30 months of practical experience concurrently performing Airframe and Powerplant duties, or 18 months for a single rating. The regulation itself does not specify 4,800 hours or a weekly hours requirement.

AC 65-30B, Change 1, §11.3 (printed page 7) explains that the FAA considers a month of practical experience an average of 160 hours, based on a 40-hour workweek. Multiplying gives 4,800 hours for 30 months or 2,880 hours for 18 months. These are guidance-derived reference totals, not standalone hour-only eligibility tests. Reaching an hours target does not by itself establish that the required months or breadth of experience have been met.

The circular is guidance, not a regulation. Its wording is an average, not a requirement to log exactly 160 hours in every calendar month. An FAA inspector evaluates the documented practical experience; this app tracks evidence and personal goals, not an FAA eligibility determination.

Earlier guidance, including the original AC 65-30B dated May 23, 2023, §11.5 (printed page 7), used a 50% subject-area figure. Change 1, dated October 30, 2024, replaced the AC wording with the clarification below. Earlier 2023 wording · historical reference ↗

No particular number, percentage, or subject in the ACS is required for documenting experience eligibility under AC 65-30B, Change 1, §11.5 (printed pages 7–8). A broad range of experience aligned with the rating sought is helpful. The ACS still defines the knowledge and skills tested.

The work-area checklist shows 12 General, 15 Airframe, and 13 Powerplant subjects. A tagged entry means a subject is represented in your records; it does not establish proficiency or FAA acceptance.

Yes, it can potentially count toward A&P practical experience. Do not exclude maintenance solely because the aircraft is experimental. FAA Safety Briefing discussed possible credit for amateur-built maintenance in 2018, before MOSAIC; acceptance was not guaranteed. 2018 Myth #3 · printed page 27 ↗

Current AC 65-30B, Change 1, §§11.5–11.5.3 calls for verifiable experience reviewed case by case, with no required ACS task or subject percentage. Section 11.5.3 describes maintenance-rating light-sport repairman work on SLSA and ELSA after airworthiness certification. Current experience guidance · printed pages 7–8 ↗

MOSAIC distinguishes light-sport repairman courses, which do not count toward §65.77, from practical work that may count. MOSAIC explanation · FR 35150 ↗

Keep the date, actual work, labor time, aircraft/model and registration, and supporting supervision or verification evidence. Worklog preserves these records; “Logged” and its time totals do not mean FAA-accepted credit. The FAA inspector evaluates the documented experience for the rating sought.

Yes. Describe what the jig is for and the aircraft, component or task it supports. Record your actual fabrication and use time, methods and dimensional checks, and who supervised or verified the work. Use Work performed and the existing notes, tools/materials and supervisor fields; no special category is required.

Review entries are visible in recorded totals. Turn off “Include records and classifications still to review” to restrict analysis to entries marked Logged. Every job counts once in combined time. Mixed divides its duration between ratings. Both A&P associates the duration with each rating, and custom associations may overlap. Rating totals are personal analytics, not separate FAA credit awards. Recorded time is not automatically qualifying experience.