The Aviation DataBase: Service Information: Engine Alliance
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DataBases updated: Jun 5th, 2025
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Service Bulletins
NameRevisionLangSubjectDate
en Engine - High Pressure Compressor (HPC) Rotor Assembly - Limited Engine Workscope for Removal and Replacement of the HPC Stage 2 through Stage 5 Spool07/21/2015
en Engine - High Pressure Compressor (HPC) Rotor Assembly - Removal of the Stages 7-9 Compressor Rotor Spools from Service07/21/2015
en Engine - High Pressure Compressor (HPC) Rotor Assembly - Inspection of HPC Stages 2-5 Spool Seal Teeth and Stage 6 Seal Ring Installation02/04/2019
en Engine - High Pressure Turbine (HPT) - Removal of the HPT Stator Case from Service06/04/2018
en Engine - High Pressure Compressor (HPC) Rotor Assembly - Repetitive Borescope Inspection (BSI) of Interstage 5-6 Seal Teeth02/04/2019
1 en Alert Engine - Hub Assembly, 1st Stage LPC Rotor - Inspection of the Fan Hub for Damage10/12/2017
2 en Alert Engine - Hub Assembly, 1st Stage LPC Rotor - Visual and Eddy Current Inspection of the Fan Hub04/17/2018
3 en Alert Engine - Hub Assembly, 1st Stage LPC Rotor - Visual and Eddy Current Inspection of the Fan Hub10/18/2018
4 en Alert Engine - Hub Assembly, 1st Stage LPC Rotor - Visual and Eddy Current Inspection of the Fan Hub06/14/2019
5 en Alert Engine - Hub Assembly, 1st Stage LPC Rotor - Visual and Eddy Current Inspection of the Fan Hub08/23/2019
7 en Alert Engine - Hub Assembly, 1st Stage LPC Rotor - Visual and Eddy Current Inspection of the Fan Hub07/31/2021
3 en Alert Engine - High Pressure Compressor (HPC) Rotor Assembly - Inspection of Stages 2-5 HPC Spool (HPC Stages 2-5 Spool) and Stage 6 Seal Ring Installation06/03/2019
en Alert Engine - High Pressure Turbine (HPT) - Removal of the HPT Stator Case from Service08/23/2018
1 en Alert Engine - Blade Lock Assembly, 1st Stage Low Pressure Compressor (LPC) - Replacement or Modification of the Blade Lock Assembly to Decrease Potential Damage to the Fan Hub01/08/2019
en Alert Engine - Blade Assembly, 1st Stage Low Pressure Compressor (LPC) Rotor - One-Time Ultrasonic Inspection for Cracks09/30/2019
en Alert Engine - Blade Assemlby, Low Pressure Compressor (LPC) Rotor, 1st Stage - Do an Ultrasonic Inspection of Low Pressure Compressor (LPC) Rotor 1st Stage Blade Assembly for Cracks11/18/2020