What was found
TAI AMBER INDICATION AFTER TAKEOFF. FOLLOWED QRH PROCEDURE. COWL VALVE OPEN LIGHT NOT CONTINUOUS. GROUNDED - YES. WHILE REVERSING MEL PROCEDURES FOUND CANNON PLUG FOR #2 ENGINE TAI LOOSE SECURED CANNON PLUG AND UNLOCKED TAI VALVE PER B737-900 AMM 30-00-00. ACCOMPLISHED TAI TEST REF AMM 30-21-11 PASSED ALL TESTS NUMEROUS TIMES WITH NO DEFECTS NOTED. C/N 04044461 REMOVED SEAMC ROBERT NOTIFIED. MEL REMOVED.