What was found
LT ENG T/R BOTTOM O/B TRACK CRACKED CLOSE TO MOUNTING BOLT. REMOVED UNSERVICEABLE LT ENGINE T/R BOTTOM O/B TRACK IAW SHORTS CMM 78-30-00-040-002-A01. INSTALLED NUTPLATES P/N MS21059L3 AND MS 21061L3 USING MS 20426AD3 RIVETS ON NEW SERVICEABLE TRACK ASSY P/N 228-50809-803 IAW CRJ 200 SRM 51-45-00. OK TO INSTALL. INSTALLED LT ENGINE T/R BOTTOM O/B TRACK IAW SHORTS CMM 78-30-440-010-A01. REFER TO FORM 409D FOR OPERATIONAL CHECK. TRACK INSTALLATION .