Summary
This action withdraws a notice of proposed rulemaking (NPRM) that proposed a new airworthiness directive (AD), applicable to General Electric Company (GE) CF6-80C2 and CF6-80E1 series turbofan engines. That action would have required replacement of all clevis pins installed on the thrust reverser central drive units and upper and lower actuators, or replacement of pins that fail an on-wing rebound hardness test. Since we issued that NPRM, we determined there is no unsafe condition that warrants issuing an AD. The likelihood of this event occurring again and significantly damaging an aircraft is very low. Accordingly, we withdraw the proposed rule.