What was found
PILOT REPORTS APU FAILED TO START ON DESCENT FAILED TO LIGHT. AFTER 2ND ATTEMPT THERE WAS A STRONG FUEL SMELL IN AIRCRAFT. FUEL SMELL WENT AWAY AFTER THEY SHUT IT DOWN. FOUND COALESCER TO BE CONTAMINATED DUE TO APU START FAILURE. C/W AWAC SUP 09-037C. APU OPS CHECK GOOD AT THIS TIME. NO FURTHER ODORS AT THIS TIME. TROUBLESHOT, FOUND APU FUEL CONTROL TO BE FEEDING FUEL TOO MUCH. R&R APU FUEL CONTROL IAW 49-30-31, OPS CHECK GOOD. REMOVED PLACARD REMOVED FROM MEL. SN OFF 23327 SN ON 26453 LEF R&R APU FUEL SOLENOID IAW AMM CH 49-30, OPS CHECK GOOD. SN OFF 2076 SN ON T#2567 LEF