What was found
EICAS MSG "BLEED LEAK L" AND "BLEED LOSS WING L" SHOW AFTER AIRBORNE, AND EICAS MSG"CABIN ALTITUDE" SHOWS WHEN PASSING 11000 FT. 1.PLZ REF SDR UNIQUE CONTROL NR 2018F00162 CONTINUATION. 2.RELEASE A 777-SL-36-015 CONTENT ON JANUARY 11, 2017 ACCORDING TO THE COMPANY, SUGGESTED OPERACTION ACTION. 3. DRAWS SAMPLES 77X FLEET(B-16782 ,B-16783) AND CHECKS THE CROSSOVER DUCT CLAMP AND FINDS THE PARTS OF TORQUES NOT ENOUGH CONDITION. 4. HANDS OVER THE NEW DATE OF AIRPLANE AFTER RELEASES THE SERVICE LETTER(777-SL-36-015), THEREFORE HAS ALREADY REQUITED AND REQUESTS TO INVESTIGATE IF HAVE SOMETHING TO DO WITH CONSTRUCTION QUALITY.