Action
Notice of proposed rulemaking (NPRM).
Summary
We propose to supersede an existing airworthiness directive (AD) that applies to all BAE Systems (Operations) Limited Model BAe 146 series airplanes and Model Avro 146-RJ series airplanes. The existing AD currently requires revising the maintenance program by incorporating certain airworthiness limitations that require new life limits on certain main landing gear (MLG) components. Since we issued that AD, we have determined that reduced safe life limits on certain nose landing gear (NLG) fittings are necessary. Analysis of these fittings showed the presence of forging indications in the flash line, which might reduce the life limits of these fittings.