bility of cooling system starvation and, any, interaction between cooling airflow and compressor airflow. Inatalled A new PATS FAA PNA p/n 430206-9 LOUVER assembly ontcpthe APU's inboard enclosure wall. Attachment was accomplished with S each NAS1103-3 bolts: 5 each AN960C10L washers; 5 each MS21059-L