Aero Fluid Products is a high quality precision engineering and design excellence aerospace company. A division of the TransDigm Inc. and approved supplier to General Electric for gas turbine engine parts. Aero Fluid Products are the original manufacturer of gas check valves on GE LM6000 PB, PD & PF engines. VBR is supplier of AFP gas check valves such as L62774P01 for GE LM6000 PB, PD & PF DLE engines.

IMPORTANT! – Service bulletin LM6000-IND-0302

OEM Service bulletin LM6000-IND-0302 recommends to install a full set of 15 Aero Fluid Products gas check valves in the fuel lines to prevent back flow of hot combustion gas and pressure into the C-manifold. This is a known problem in the fuel system of LM6000 PB, PD and PF engines.

Stop combustion gas back flow

The backflow of hot air in the gas manifold can cause issues within the manifold leading to braze joint separation. This can result in unsafe situations where gas can enter into the package. Other known effects are unplanned engine trips. As a result it is recommended in the service bulletin to carry out this upgrade at the first opportunity. This could be a next shutdown or periodic inspection at the latest. VBR Turbine Partners can complete the work required by the service bulletin on-site in one working day.

Old configuration

New configuration

Upgrade KIT 738L538G01

Operators can order the upgrade kit 738L538G01 as set out in the service bulletin and perform the upgrade at your own convenience. Or you can have VBR Turbine Partners field service team to perform this upgrade for you on-site.

KIT 738L538G01 contents:

GE Part number Description Quantity
L62774P01 Gas check valves 15 pcs
J1431P12 Loop clamp 30 pcs
J1092P04 Self-locking nut 15 pcs
MS9557-10 Machine bolt 15 pcs

Other high quality Aero Fluid Products check valves:

Aero Fluid Products is a high quality precision engineering and design excellence aerospace company. A division of the TransDigm Inc. and approved supplier to General Electric for gas turbine engine parts. Aero Fluid Products are the original manufacturer of gas check valves on GE LM6000 PB, PD & PF engines. VBR is supplier of AFP gas check valves such asL62774P01 for GE LM6000 PB, PD & PF DLE engines.

LM2500
AFP P/N GE P/N
B1548-02-6 L34048P01
B1548-03-16 1332M27P01
B1549-04 L21785P06
LM2500 - LM5000
AFP P/N GE P/N
B1548-03-12 L21674P11
B1548-04-10 L21674P13
B1548-04-12 L21674P14
LM2500 - LM1600
AFP P/N GE P/N
B1947-08 L35807P01
LM6000
AFP P/N GE P/N
B5450-02 L62774P01