Service difficulty report · Module · Boeing 757224

Difficulty date
December 13, 2025
Submitted
December 16, 2025
Operation
Air carrier
Aircraft
N14120
Make and model
Boeing 757224
Aircraft serial
27562
Aircraft time
97,904 hours, 23,820 cycles
Part
Module
Part number
257T110315
Part serial
D01525
Condition
Faulted
Location
Control Handle
Part time
64,157 hours, 12,872 cycles
Stage of operation
LD
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

ON FINAL GOT A GEAR DISAGREE LIGHT FOR GEAR DOOR ON RT SIDE. WENT ARND & LANDED. ONLY GEAR DISGREE AMBER LIGHT ILLUMINATED. PERFORMED PSEU BITE IAW FIM 32-09 FT 804. MEMORY RECALL FOR LAST FLT LEG HAD FAULT CODES 421, 422, 423 & 424. FIM 32-09 FT 804, TABLE 105 CORRECTIVE ACTION FOR THOSE FAULTS IS TO REPLACE THE LANDING GEAR LEVER MODULE M937. ACCOMPD WIRE CKS FROM MLG CONTROL MODULE M937 TO PSEU M162. D3210A PIN G2 TO GND READS 3OHMS WITH HANDLE DOWN. H2 TO GRND READS OPEN. WITH HANDLE UP D3210A PIN G2 TO GND READS OPEN. H2 TO GND READS 2OHMS. D3210E PIN G3 TO GND READS 3 OHMS WITH HANDLE DOWN. J3 TO GND READS OPEN. WITH HANDLE UP D3210E PIN G3 TO GND READS OPEN. J3 TO GND READS 2 OHMS. IAW SSM 32-61-01-101. WIRING CKS OKAY. REINSTALLED PSEU IAW AMM 32-09-04-404-009. FURTHER TROUBLESHOOTING REQUIRED. R & R MLG CONTROL LEVER MODULE UP TO STEP D.(10)(C). IAW AMM 32-31-01-404-011. CONTINUED UP TO STEP D.(11). ADJUST THE CONTROL SYS. ACCOMPLISHED INSTALLATION OF MLG CONTROL LEVER MODULE, ALL CHECKS & TEST COMPLETED OKAY. IAW AMM 32-31-01-404-011.