What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: DURING CLIMB TO 5000 FORWARD CARGO DOOR LIGHT ILLUMINATED. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT ORD. PSEU BITE PREVIOUS FLIGHT FAULTS 52-72001. NO EXISTING FAULTS SHOWN. TROUBLESHOT PER FIM 52-30-00-810-803. FOUND FORWARD CARGO DOOR WARNING SWITCH S960 OUT OF ADJUSTMENT AT 0.75 INCH PER AMM 52-71-31. CORRECTED TO 0.81 INCH WHICH IS NOW WITHIN LIMITS. OPERATIONAL CHECK GOOD. PSEU BITE TEST IS GOOD PER FIM 32-09, TASK 801.