TM 1-1520-238-23 1-412 Change 4 1.138. OVERHAUL AND RETIREMENT SCHEDULE – continued Part Name Retirement Interval Notes Retirement Interval Hours Overhaul Interval Notes Overhaul Interval Hours Part Number Lateral Bellcrank 7-311511123 22,500 7-311511123-5 22,500 7-311511123-9 22,500 7-311511123-13 22,500 7-311511123-17 22,500 Aft Longitudinal Bellcrank 7-311511125 20,000 7-311511125-5 20,000 7-311511125-9 20,000 7-311511125-13 20,000 7-311511125-17 20,000 Fwd Longitudinal Bellcrank 7-311511127 20,000 7-311511127-5 20,000 Longitudinal Link 7-311511130 21,600 21,600 7-311511130-5 21,600 7-311511130-9 21,600 7-311511130-15 21,600 Bolt, Mixer Pivot Support 7-311160044 20,500 7-311160044-3 20,500 Bolt, Self-Locking, Rotor Cont. 7-211511133 20,800 7-211511133-3 20,800 Bolt, Lateral Bellcrank Support 7-211511134 20,800 7-211511134-3 20,800 Longitudinal Torque Link Assembly 7-311511181 20,100 7-311511181-35 20,100 7-311511181-39 20,100 7-311511181-43 20,100 Lateral Link 7-311511182 22,500 7-311511182-5 22,500 7-311511182-11 22,500 7-311511182-17 22,500 Bolt, Aft Long Bellcrank Support 7-211511209 20,000 7-211511209-3 20,000 Bolt, Torque Link Support 7-211511211 20,000 7-211511211-3 20,000 GO TO NEXT PAGE