Service difficulty report · Idg · Boeing 737924ER

Difficulty date
September 1, 2025
Submitted
September 3, 2025
Operation
Air carrier
Aircraft
N57439
Make and model
Boeing 737924ER
Aircraft serial
33534
Aircraft time
51,464 hours, 18,256 cycles
Part
Idg
Part number
761574B
Part serial
AAAH003668
Condition
Faulted
Location
Nr 2
Stage of operation
CL
How discovered
O
Nature of condition
J, H
Precautionary procedure
A

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

What was found

NUMBER 2 ENG GEN SOURCE OFF LIGHT ILLUMINATED. GEN 2 INDICATED 24 DC BUT NO VOLTS OR FREQ AC. DRIVE DISCONNECTED #2 IDG HAD BEEN DISCONNECTED. REMOVED LIGHT BULBS FROM #2 ENG DRIVE LIGHT AND GEN LIGHT FOR #2 ENG. FOUND #1 ENG IDG TO BE OVER SERVICED. RESERVICE #1 ENG IDG TO CORRECT OIL LEVEL. APU OIL LEVEL GOOD. NO LEAKS NOTED. DISPATCH DESK.GENERATOR DISCONNECTED - OIL LEVELS CHECKED AND NORMAL. REQUIRED BULBS REMOVED - TOMC APPROVED COMPLIED WITH MEL 2401B. PLACARD APPLIED. *DM* SUGGEST FIM 24-11 TASK 802, SEE M/L FOR PACKINGS AND GCU IF NEEDED SWAPED #2 GCU WITH SERVICEABLE PART, RAN #2 ENGINE, GCU SWAP NO HELP, REINSTALLED ORIGINAL GCU REF AMM: 24-21-81. REPLACED #2 ENGINE IDG UP THROUGH H.5. PER AMM: 24-11-11. INSPECTION REQUIRED FOR FEEDER CABLE INSTALL. VERIFIED INSTALLATION OF #2 ENG FEEDER CABLES REF AMM 24-11-11 AND GMM 09-10-05 COMPLETED INSTALL OF #2 ENG IDG FROM STEP H.6 TO END PER AMM: 24-11-11. OPS CHECK GOOD AT THIS TIME PER AMM: 24-11-00-700-803. NO LEAKS NOTED AT THIS TIME. REVERSED MEL 2401B, REINSTALLED LAMPS IN #2 DRIVE LIGHT AND #2 GEN BUS OFF LIGHT ON OVERHEAD PANEL, A/C RETURNED TO NORMAL CONFIGURATON.