Rotax Engine Owners: Time for Backup Battery Drills
Published Date: 4/4/2025
Rule
Summary
If you own certain BRP-Rotax engines, the FAA wants you to check your battery backup regularly and inspect some engine parts to keep things safe. This is because some engines got the wrong glue during making, which could cause trouble. Fixes might mean replacing parts, so be ready to act soon to keep flying smooth and safe!
Analyzed Economic Effects
2 provisions identified: 0 benefits, 2 costs, 0 mixed.
Required Battery Backup Operational Checks
If you own or operate aircraft with certain BRP‑Rotax engines (Model 912 iSc2 Sport, 912 iSc3 Sport, 915 iSc2 C24, or 915 iSc3 C24), the FAA requires repetitive operational checks of the battery backup function. If an operational check finds insufficient battery power, the AD requires removal of the engine from service until the issue is addressed.
One‑Time Inspections and Possible Part Replacement
The AD requires one‑time inspections of the oil spray nozzle and the generator stator assembly on the affected BRP‑Rotax engines (Model 912 iSc2 Sport, 912 iSc3 Sport, 915 iSc2 C24, and 915 iSc3 C24). Depending on inspection results, you must replace those parts with parts eligible for installation.
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