Service difficulty report · Idg · Boeing 757324

Difficulty date
January 15, 2024
Submitted
January 17, 2024
Operation
Air carrier
Aircraft
N75861
Make and model
Boeing 757324
Aircraft serial
32585
Aircraft time
67,711 hours, 21,042 cycles
Part
Idg
Part number
727792N
Part serial
AAAL0A1576
Condition
Faulted
Location
Eng#2
Part time
38,262 hours, 9,420 cycles
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

ON ROTATION...R GEN DRIVE DISC ACCOMPLISHED IDG SERVICING. RAN ENGINE TO ACCOMPLISH FUNCTIONAL CHECK. DRIVE LIGHT REMAINS ILLUMINATED. M&E PART NUMBER 19-2420-9-0001. 727792N BITE OF BPCU SHOWS FAULTS: HIGH RISE TEMP, IDG LOW OIL PRESSURE, & UNDER FREQUENCY TRIP. FIM 24-20 FAULT TREE 801. REMOVED #2 ENG IDG AND INSTALLED NEW IDG ON #2 ENG REF AMM 24-11-01-424-002 UP TO STEP H(1) STEP K. CONTINUE AT STEP H(2). ADD EMP:U349207,U269145 PARTS TRANSACTION. ROTABLE PARTS CHANGE WAS INDICATED - TT # 1948904 SN OFF 1576 GENERATOR, INTE OFF 19-2420-9-0001 1576 ON 19-2420-9-0001 1247 GENERATOR, INTE OFF 19-2420-9-0001 1576 ON 0000 VERIFIED TORQUE OF IDG TERMINAL LEADS IAW AMM 24-11-01 FLAGGED FOR INSPECTION, TORQUED ENG#2 PHASE LEADS TO IDG POWER TERMINAL STUDS. CONTINUED FROM STEP H(2) TO END, OPS CHECK AND LEAK CHECK GOOD. REF AMM 24-11-01-424-002.