As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB, WOW ID FAIL, NOSE GEAR WOULD NOT RETRACT. TROUBLESHOT SYSTEM FOUND THE NOSE GEAR PROXIMITY SWITCH HARNESS TO HAVE A SHORT. REPLACED THE NOSE GEAR PROXIMITY HARNESS IAW THE CHALLENGER CL601 MM CHAPTER 32-20-41. PERFORMED GEAR SWING AND OPERATIONAL CHECK. NO DEFECTS NOTED RETURNED AIRCRAFT TO SERVICE. (M)