LHT MES team successfully performed on-wing replacement of CFM56-7B engine VBV Guide Pads
In November 2020, LHT MES team successfully performed on-wing replacement of CFM56-7B engine VBV Guide Pads in Xiamen Airline's hangar. The missing of teflon material on VBV Guide Pads may trigger an inconsistent VBV position signal failure.
This kind of fault was treated as engine basic fault, according to the previous experience, engine shall be removed and subcontracted to MRO shop for repair, derivative cost is high and repair TAT is long.
Based on extensive experience in field service, for this kind of fault, LHT has provided several times on-wing replacement solution in Chinese market for many airlines.
Maintenance facts have proved that maintenance risk is controllable, maintenance cost is low and repair TAT is short.