PRIOR TO MAINTENANCE TEST FLIGHT (CONT)

CAUTION TM 1-1510-225-MTF PROCEDURE TROUBLESHOOTING REFERENCE PRIOR TO MAINTENANCE TEST FLIGHT (CONT) Extend the ice vanes during ground operation to minimize foreign object damage (FOD) to the engine. 15. ENGINE ANTI-ICE switches - ON. *16. Lighting systems - Check. Include position lights, recognition lights, landing/taxi light, wing ice lights, bea- cons, and interior lights, then off. C39 *17. HYD FLUID SENSOR TEST switch - Depress and hold. Check HYD FLUID LOW annunciator light illuminates after approximately 2 seconds, and extinguishes after approximately 6 seconds. *18. Engine fire detection system - Check as follows: C43-47 (a) ENG FIRE SYS TEST SWITCH - Rotate and hold to DET L posi- tion. Verify that L ENG FIRE warning annunciator illuminates and that the MASTER WARN- ING annunciators illuminate. (b) ENG FIRE SYS TEST SWITCH - Rotate and hold to DET R posi- tion. Verify that R ENG FIRE warning annunciator illuminates and that the MASTER WARN- ING annunciators illuminate. 2-6