Engine Safety Directive for IAE Aircraft Engines
Summary
The FAA is adopting a new airworthiness directive (AD) for all International Aero Engines, LLC (IAE LLC) Model PW1122G-JM, PW1124G1- JM, PW1124G-JM, PW1127G1-JM, PW1127G1A-JM, PW1127G1B-JM, PW1127G-JM, PW1127GA-JM, PW1129G-JM, PW1130G-JM, PW1133G-JM, and PW1133GA-JM engines. This AD was prompted by an in-flight shutdown (IFSD) caused by the fracture of a low-pressure compressor (LPC) 1st-stage integrally bladed rotor (IBR-1). This AD requires removal and replacement of affected LPC key washers and affected LPC IBR-1 and installation of inlet guide vane (IGV) spacers. The FAA is issuing this AD to address the unsafe condition on these products.
Compliance Requirements
- #1
For affected engines that have not incorporated Pratt & Whitney Service Bulletin PW1000G-C-72-00-0180-00A-930A-D (initial issue or any revision), and with installed LPC key washers having part number (P/N) 5375416, at the next engine shop visit after the effective date of this AD, remove the affected LPC key washers and replace them with LPC key washers and LPC inlet guide vane (IGV) spacers that are eligible for installation.; For affected engines with an installed LPC IBR-1 having P/N 5373831, at the next piece-part exposure after the effective date of this AD, remove the affected LPC IBR-1 and replace with an LPC IBR-1 eligible for installation.; Comply with this AD within the compliance times specified, unless already done.
Deadline: At the next engine shop visit after the effective date of this AD
Market Impacts
Mandatory removal and replacement of affected LPC key washers and LPC IBR-1 components, plus installation of IGV spacers on all affected IAE LLC engines. Creates operational restrictions until compliance is achieved.; Creates mandatory demand for replacement parts: LPC key washers P/N 5375434 or later, LPC IGV spacers P/N 5375433 or later, and LPC IBR-1 P/N 5373841 or later. Requires supply chain ramp-up.; Creates compliance barrier for aircraft transactions involving affected engines. Non-compliant engines cannot be operated in U.S. airspace, reducing marketability and value.; Creates significant maintenance opportunity for FAA-approved repair facilities. 215 engines require shop visits and part replacements, generating substantial service revenue.
Validated Company Impacts
RTX Corp
RTX Corp's Pratt & Whitney segment directly manufactures and services the exact engine models specified in this AD (PW1122G-JM through PW1133GA-JM engines), making them the primary manufacturer responsible for compliance with these mandatory component replacements and service bulletin requirements. The company's aerospace operations align perfectly with the rule's scope as they produce, maintain, and support the affected engines for commercial aviation customers worldwide. The company operates in the financial services sector with no disclosed aviation, aerospace, or manufacturing operations. The AD rule specifically targets aircraft engine manufacturers, operators, and maintenance providers, which has no alignment with the company's credit, market, or operational risk profile focused on financial services.
HEICO CORP
HEICO's Flight Support Group is the world's largest manufacturer of FAA-approved jet engine and aircraft component replacement parts and a leading provider of repair and overhaul services, directly aligning with the AD's requirements for replacement parts (LPC key washers, IGV spacers, IBR-1) and maintenance services. The company's core business of manufacturing FAA-approved aerospace components and providing MRO services positions it to supply the mandatory replacement parts and perform the required engine shop visits. The AD rule addresses operational safety and maintenance compliance risks in aviation, while the company's disclosed risks are purely financial (interest rate and foreign currency exposure). There is no overlap between the mechanical safety requirements of the airworthiness directive and the company's financial risk profile.