Engine – Propeller Gearbox – Inspection
- Published
- Effective
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must inspect the propeller gearbox for the presence of the oil spray nozzle and screws within specified compliance times: before next flight for gearboxes with less than 25 hours operation and within 5 flight hours for those with 25 or more hours. If missing parts are found, the gearbox must be replaced with a serviceable unit before further flight. From the effective date, only serviceable gearboxes may be installed on any engine.
Summary
EASA Airworthiness Directive 2026-0121-E is an emergency directive addressing the inspection of propeller gearboxes installed on BRP-Rotax 912, 912 i, and 914 series engines used in various general aviation aircraft. The directive mandates a one-time inspection to verify the presence of the oil spray nozzle assembly and securing screws in the propeller gearbox. It applies to all serial numbers of the affected engines and gearboxes as specified in the associated BRP-Rotax Alert Service Bulletin ASB-2026-001R00.
What changed
This new emergency airworthiness directive introduces mandatory inspections of the propeller gearbox for missing oil spray nozzles and M7 x 16 hexagon screws, which were found missing on some recently manufactured engines. It requires corrective action by replacing the gearbox if discrepancies are found and restricts installation to only serviceable gearboxes from the effective date. The directive is based on findings that missing parts could lead to engine oil loss or uncommanded shutdown.
Why it matters
This directive is critical for aviation professionals as it addresses a potential safety hazard that could cause engine failure and loss of aircraft control. Operators and maintenance organizations must ensure compliance to prevent in-flight engine shutdowns and maintain airworthiness. Compliance teams need to track affected engines and gearboxes to meet inspection deadlines and avoid grounding aircraft due to non-compliance.
More for Brp-Rotax Gmbh & Co Kg 912 A
All 5- EASA AD 2023-0156-EEngine — Propeller Gearbox / Magnetic Plug — Inspection / Propeller Shaft — ReplacementAug 2, 2023
- EASA AD 2017-0208[Correction] Reciprocating Engine — Valve Push Rod Assembly — Inspection / ReplacementDec 22, 2017
- EASA SIB 2014-34Possible Exceedance of Engine Temperature Limits of BRP-Powertrain Rotax 912 and 914 EnginesDec 23, 2014
- EASA SIB 2014-31BRP-Powertrain Rotax 912 and 914 Engines Carburettor Float Non-ConformityNov 7, 2014
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