Part Number: 300-7CF8DEG (Flight director horizon referenc)Part Number: 300-7DC28 (Flight director horizon referenc)Part Number: 300-7DC288DEG (Flight director horizon referenc)Part Number: 300-98DEG (Flight director horizon referenc)Part Number: 300-9DC28 (Flight director horizon referenc)Part Number: 300-9DC288DE (Flight director horizon referenc)Part Number: 504-0001-922 (Flight director horizon referenc)