What was found
JUST CLEARING MAIN AIRSPACE GOT LEFT FUEL SYSTEM PRESS MSG DIV TO JFK FOR REPAIRS. FOUND PUMP OPERATING NORMAL. FOUND C/P PINS GREEN AND SWITCH PINS CONTAMINATED AT LOW PRESS SWITCH S71. REPINNED CONNECT AND REPLACED LOW PRESSURE SWITCH S71. WITH SWITCH OUT AND P ON FOUND NO FLOW FROM LOW PRESS LINE-AFTER SEVERAL MINUTES BLOCKAGE CLEARED-PURGED LINE FOR SEVERAL MORE MINUTES UNTIL ALL FLOW CLEAR. REINSTALLED SWITCH ALL OPS NORMAL. NO FURTHER CONTAMINATION FOUND IN TANK.