PW150A Full Authority Digital Electronic Control (FADEC) Software Upgrade to Minimize Risk of Aircraft Jet Pipe Fire
- Published
- Effective
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of aircraft equipped with PW150A engines containing the specified FADEC part numbers must upgrade the FADEC software within 3000 hours air time or 14 months from 12 September 2025, whichever occurs first. The upgrade must follow the procedures in P&WC Service Bulletin PW150-73-35381 or later approved versions. Contact Transport Canada for further guidance if needed.
Summary
The Airworthiness Directive CF-2025-44 mandates a software upgrade for Pratt and Whitney Canada PW150A engines to reduce the risk of aircraft jet pipe fires. This directive requires installation of a new version of the Full Authority Digital Electronic Control (FADEC) software on all affected PW150A engines. The upgrade addresses a hazard where unburned fuel could ignite in the jet pipe, causing thermal damage.
What changed
This new Airworthiness Directive introduces a mandatory FADEC software upgrade for PW150A engines with specific affected part numbers. It requires operators to install the updated software as specified in P&WC Service Bulletin PW150-73-35381 to mitigate the risk of jet pipe fires caused by unburned fuel re-ignition. This is a new regulation responding to a recently identified engine hazard.
Why it matters
This directive is critical for aviation professionals because it addresses a safety risk involving potential jet pipe fires that can cause thermal damage to aircraft engines. Operators and maintenance organizations must comply to ensure continued airworthiness and safe engine operation. Compliance helps prevent engine power loss events and enhances overall flight safety.
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