LEARJET 45 AND ASTRA SPX ENGINES GET UPGRADED PUMPS
AlliedSignal Engines received TSO approval for an improved fuel pump and auxiliary motive flow pump for the TFE731-20 turbofans that power the Learjet 45 and the TFE731-40 engines on the Astra SPX. The change was made after three iterations of the original Sundstrand pump designs failed to cure...
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