What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
On outbound trip from Texas to panama at cruise level 410 the PIC noticed that the left windshield was starting to delaminate and it was spreading. As a precautionary measure she decided to lower the aircraft altitude to 260 .once the altitude was lowered the left windshield defog annunicator light illuminated and she responded by pulling the circuit breakers for the left windshield heat. The aircraft landed in panama and the left windshield defog system was checked out and verified to be inop by a mechanic. The operator decided to fly the aircraft back to the Bombardier faciliy at fll to troubleshoot the system. Maintenance personel determined that the windshield defog box assy was defective and both the left windshield and windshield defog box assy was replaced. Ops and leak check was performed satisfactory.
As the FAA filed it
ON OUTBOUND TRIP FROM TEXAS TO PANAMA AT CRUISE LEVEL 410 THE PIC NOTICED THAT THE LEFT WINDSHIELD WAS STARTING TO DELAMINATE AND IT WAS SPREADING. AS A PRECAUTIONARY MEASURE SHE DECIDED TO LOWER THE AIRCRAFT ALTITUDE TO 260 .ONCE THE ALTITUDE WAS LOWERED THE LEFT WINDSHIELD DEFOG ANNUNICATOR LIGHT ILLUMINATED AND SHE RESPONDED BY PULLING THE CIRCUIT BREAKERS FOR THE LEFT WINDSHIELD HEAT. THE AIRCRAFT LANDED IN PANAMA AND THE LEFT WINDSHIELD DEFOG SYSTEM WAS CHECKED OUT AND VERIFIED TO BE INOP BY A MECHANIC. THE OPERATOR DECIDED TO FLY THE AIRCRAFT BACK TO THE BOMBARDIER FACILIY AT FLL TO TROUBLESHOOT THE SYSTEM. MAINTENANCE PERSONEL DETERMINED THAT THE WINDSHIELD DEFOG BOX ASSY WAS DEFECTIVE AND BOTH THE LEFT WINDSHIELD AND WINDSHIELD DEFOG BOX ASSY WAS REPLACED. OPS AND LEAK CHECK WAS PERFORMED SATISFACTORY.