Engine - LP10 Oil Supply Tube & Fuel Oil Cooler - Inspection
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must perform an initial gap inspection within 300 engine cycles from March 27, 2020, and repeat inspections every 850 engine cycles if no gap is found. If any gap is detected, the LP10 oil supply tube and FOC must be replaced before further flight. Furthermore, these parts must be removed and replaced at the next engine shop visit following the directive's effective date.
Summary
FAA Airworthiness Directive 2020-04-01 is a final rule addressing Pratt & Whitney PW1519G, PW1521G, PW1521GA, PW1524G, PW1525G, PW1521G-3, PW1524G-3, PW1525G-3, PW1919G, PW1921G, PW1922G, PW1923G, and PW1923G-A model turbofan engines. It mandates inspections and potential replacement of the LP10 oil supply tube and the fuel oil cooler (FOC) due to reports of in-flight shutdowns caused by oil leaks at their connection. This directive aims to prevent engine fires and damage to aircraft.
What changed
This new airworthiness directive introduces requirements for initial and repetitive gap inspections between the LP10 oil supply tube and the FOC using a 0.001 inch feeler gauge. If a gap is detected, the affected parts must be replaced before further flight. Additionally, the directive requires removal and replacement of these parts at the next engine shop visit after the effective date.
Why it matters
This directive is critical for aviation professionals to prevent unsafe conditions that could lead to engine failure and potential in-flight shutdowns. Operators and maintenance teams must ensure compliance to avoid engine fires and aircraft damage, thereby maintaining safety and regulatory adherence. It also impacts maintenance planning and parts inventory management due to the inspection and replacement requirements.
More for Pratt & Whitney PW1500G
All 13- EASA AD US-2025-04-13Engine - High-Pressure Compressor (HPC) 7th-Stage Axial Rotor - Inspections / ReplacementMar 14, 2025
- EASA AD US-2024-06-04Engine - High Pressure Turbine (HPT) 1st and 2nd Stage Hubs, High Pressure Compressor (HPC) 8th Stage Disks - Inspection / HPC 7th Stage Rotors, HPC 8th Stage Disks, HPC Rear Hubs, HPT 1st and 2nd Stage Hubs, HPT 1st and 2nd Stage Air Seals, HPT 1st and 2nd Stage Blade Retaining Plates - ReplacementApr 12, 2024
- EASA AD US-2022-27-04Engine Controls - Electronic Engine Control Full Authority Digital Engine Control Software - ReplacementJan 3, 2023
- EASA AD US-2022-15-03
Get the next one by email
New ADs and bulletins for Pratt & Whitney PW1500G and & Whitney PW1900G, summarized like this page, every Monday.