I, Ralph G. D’Ambrosio, certify that:
1. I have reviewed this Amendment No. 1 on Form 10-K/A to the Annual Report on Form 10-K for the year ended December 31, 2018 of L3 Technologies, Inc.;
and
2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the
statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.