What was found
ON SHORT FINAL #1 STBY HYD PUMP HOT LIGHT ILLUMINATED LIGHT CAME ON WHEN FLAPS SELECTED BETWEEN 5-10 DEGREES. REMOVED FROM SERVICE. PERFORMED GVI OF LH SPU AND FOUND SPU AND BONDING JUMPER TO BE DAMAGED .RAP2846728 3-25-22. REMOVED SPU REF Q400 AMM TASK 29-11-36-000-801 REQ INSTALL OF NEW SPU REF Q400 AMM 29-11-36-400-801 PARA 1-4A1-4 , 6 3362 3/25/22. FOUND PINS OF SPU AC&E BROKEN AND LODGED INSIDE OF AIRFRAME HARNESS PLUG P25. WAS ABLE TO REMOVE STUCK PIN INSIDE SOCKET A. RE-TERMINATED NEW SOCKET FOR P25 ON WIRES 2921-T1A-08-1/B/U & 2921-T1A-081/ORN REF WM 29-11-00& SP20-12-20 PERFORMED CONTINUITY CK OF PINS 4,C & E OF P25 TO A,BC OF 2921-P7-2 CKS GOOD NO SHORTS OR OPEN 70232 3-16-22. COMPLETED INSTALL OF SPU RE3F Q400 AMM TASK 29-11-36-400-801 PARA 4A (7-9) 5A-I DMI NOT REQUIRED OPS TEST GOOD. AIRCRAFT RETURNED TO SERVICE.