What was found
IN FLIGHT ON CLIMBOUT, NR 4 ENGINE FIRE WARNING LIGHT ILLUMINATED, ACCOMPLISHED AIRCRAFT OPERATING MANUAL (AOM) (SAI OP-523) PROCEDURES. FIRE INDICATIONS WENT OUT WHEN ENGINE SHUTDOWN. NO FIRE BOTTLES BLOWN. NR 4 ENGINE CENTER LOWER ACCESS DOOR FOUND OPEN AFTER LANDING. POST FLIGHT: CLOSED AND SECURED NR 4 ENGINE LOWER ACCESS DOOR IAW AMM 78-30-01. ACCOMPLISHED HIGH POWER ENGINE RUNS ON NR 4 ENGINE AND FOUND TO BE WITHIN ALL PARAMETERS OF OTHER ENGINES WITH EXCEPTION OF NR 4 THRUST LEVER 3/4 BEHIND NR 1, 2, AND 3. IAW AOM, VOL 1, LIMITATIONS OKAY FOR CONTINUED SERVICE. AS PRECAUTION, LOCKED OUT NR 4 ENGINE HIGH STAGE VALVE IAW AMM 36-11-17. TRANSFERRED TO DI NR 16258 IAW DDPG, MEL 36-1 (2). PLACARD INSTALLED. (K)