What was found
GEAR HANDLE KNOB BROKE WHEN GEAR HANDLE WAS PLACED IN THE UP POSITION AFTER TAKEOFF. REPLACED MLG CONTROL LEVER MODULE. REFERENCE 757 AMM 32-31-01-4. COMPLETED MLG ALTERNATE EXTENSION TEST. CHECKS NORMAL. REFERENCE AMM 32-35-00-5 PER 757 AMM 32-31-01-4, TESTS 12 AND 13, ARE NOT COMPLIED WITH. COMPLIED WITH STEP 3.D.13 OPERATIONAL TEST OF EGPWS, OP'S CK GOOD. REPLACED MLG LEVER MODULE. COMPLETED MLG ALTERNATE EXTENSION TEST. CHECKS NORMAL. COMPLIED WITH STEP 3.D.13 OPS TEST OF EGPWS, OP'S CK GOOD. COMPLETED MLG POSITION INDICATING & WARNING SYSTEM ADJ/TEST (STEP 3.D.(12)) IAW AMM 32-61-00-5. ALL CHECKS GOOD. NO DEFECTS NOTED. THIS STEP COMPLETES INSTALLATION OF MLG CONTROL LEVER MODULE.