AD FAA-2015-0909

The FAA is withdrawing a notice of proposed rulemaking (NPRM). The NPRM proposed a new airworthiness directive (AD) that had applied to AlliedSignal oil scavenge pumps, part numbers (P/Ns) 101633-01 and - 02 and Rajay Inc. oil scavenge pumps, P/Ns 1025-1 and -2 installed on Continental Motors, Inc. (CMI) IO-470 and TSIO-520 reciprocating engines and on Lycoming Engines, Inc., (Lycoming) IO-360, IO-540, and O-360 reciprocating engines. We have found no service difficulties with these model oil scavenge pumps when installed on the affected engines. Accordingly, we withdraw the proposed rule.