FAA Tweaks Rules to Ease Checks on Rotax Aircraft Engines
Published Date: 7/22/2025
Rule
Summary
If you own certain BRP-Rotax engines, the FAA has updated safety rules to keep your engine running smoothly and safely. They’re keeping most checks from before but now only require inspecting the generator stator if the oil spray nozzle shows a problem. These changes help prevent engine trouble without extra hassle, and you’ll want to act quickly to stay safe and legal.
Analyzed Economic Effects
4 provisions identified: 1 benefits, 3 costs, 0 mixed.
Keep battery backup checks
If you own a BRP‑Rotax Model 912 iSc2 Sport, 912 iSc3 Sport, 915 iSc2 C24, or 915 iSc3 C24 engine, the AD continues the requirement for repetitive operational checks of the battery backup function from AD 2025-07-02. If an operational check finds insufficient battery power, you must remove the engine from service.
Parts replacement if inspections show defects
Depending on the inspection results (battery checks, oil spray nozzle, and any on‑condition stator inspection), the AD requires replacement with parts eligible for installation when defects are found. If inspections identify problems, you must replace the affected parts per the AD.
One-time oil nozzle inspection required
The AD keeps a one-time inspection requirement of the oil spray nozzle on the listed BRP‑Rotax engines (Models 912 iSc2 Sport, 912 iSc3 Sport, 915 iSc2 C24, 915 iSc3 C24). You must perform this one-time inspection and follow any required actions if problems are found.
Generator stator inspection on‑condition
The AD changes the generator stator assembly and wiring inspection from a required one-time inspection to an on-condition action. You only need to inspect the generator stator assembly and wiring if the one-time oil spray nozzle inspection shows a problem.
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