Strong aftermarket demand is pushing earnings higher.GE Aerospace (GE 7.13%) reported a stronger-than-expected quarter thanks to continued strong demand for airplane and engine spare parts. Investors are taking notice, sending shares of GE Aerospace up 8% as of noon ET.Strong pricing leads to an earnings beatGE Aerospace is the last vestige of onetime conglomerate General Electric. The company is a leading manufacturer of aircraft engines and other equipment.The company earned $1.20 per share in the second ...