Superseded by FAA AD 2022-15-03
- Published
- Effective
- Deadline
- Replaces
- 2019-21-11
- Replaces
- 2020-07-02
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must perform initial and repetitive borescope inspections of the LPC R1 as specified and replace the LPC if damage or cracks are found. They must update the EEC FADEC software to the approved version and conduct a borescope inspection if certain fault codes appear after software installation. The AD is effective August 12, 2021, and compliance with inspection and software update requirements must be maintained accordingly.
Summary
FAA Airworthiness Directive 2021-14-06 is a final rule addressing Pratt & Whitney PW1500G series turbofan engines, including models PW1519G, PW1521G, PW1521G-3, PW1521GA, PW1524G, PW1524G-3, PW1525G, PW1525G-3, PW1919G, PW1921G, PW1922G, PW1923G, and PW1923G-A. This directive mandates inspections and software updates to mitigate risks associated with low-pressure compressor rotor 1 (LPC R1) failures. It supersedes previous ADs related to these engines to enhance safety and operational reliability.
What changed
This AD supersedes AD 2019-21-11 and AD 2020-07-02, continuing the requirement for repetitive borescope inspections of the LPC R1 until the installation of updated EEC FADEC software. It introduces a new requirement for borescope inspection after installing the updated software if specific onboard fault codes are detected. The AD also corrects the effective date reference for a previous AD and clarifies service information usage without mandating later revisions.
Why it matters
This directive is critical for aviation professionals as it addresses unsafe conditions that have led to in-flight shutdowns due to LPC R1 failures. Compliance ensures continued airworthiness and reduces the risk of engine damage or failure. Maintenance and compliance teams must be aware of inspection intervals and software update requirements to maintain operational safety and regulatory compliance.
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
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New ADs and bulletins for Pratt & Whitney PW1500G and & Whitney PW1900G, summarized like this page, every Monday.