Service difficulty report · Bearing · Boeing 737890

Difficulty date
April 10, 2018
Submitted
April 11, 2018
Operation
Air carrier
Aircraft
N508AS
Make and model
Boeing 737890
Aircraft serial
35691
Aircraft time
37,248 hours, 11,181 cycles
Part
Bearing
Part number
26150011
Part serial
B1242
Condition
Failed
Location
Lt Mlg
Part time
37,283 hours, 11,377 cycles
Stage of operation
TX
How discovered
O
Nature of condition
O
Precautionary procedure
D

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

What was found

SEIZED BRAKE ON #1 MLG. FUSE PLUG BLEW. GROUNDED - YES. FOUND #1 TIRE FLAT & COMING OFF WHEEL. FOUND EVIDENCE OF #1 TIRE ASSEMBLY, INBOARD BEARING ASSEMBLY FAILURE. REMOVED TIRE ASSEMBLY PER AMM 32-45-11, UNABLE TO REMOVE #1 BRAKE ASSEMBLY. REMOVED LT MAIN STRUT OB TRANSDUCER "REF LOG PAGE 11844864", FOUND PRIMER MATERIAL ON INNER AXLE BUBBLED, BROWN IN COLOR, AND BROWNING OF TRANSDUCER WIRE HARNESS WIRE SHEATH. REF LP 11844862 FOR GEAR PIN INSTALLATION & LOGPAGE 11844863 FOR #2 MAIN TIRE/WHEEL ASSY R & R. C/W CONDITION INSPECTIONS PER AMM 05-51-17-210-802, 05-51-17-210-801, 05-51-54-210-801, AND 05-51-15-210-801 #1 BRAKE SEIZED TO AXLE. REF L/P 11844867 FOR REPLACEMENT. REMOVED LEFT MAIN GEAR AXLE PER AMM 32-11-85-000-801. LT OTBD ANTISKID XDCR WIRES W128-2201 ARE SERVICEABLE PER B737 SOPM 20-10-13 (SLIGHT DISCOLORATION OF OUTER JACKET). REF L/P 11844871 FOR #1 TIRE & #1 BRAKE REPLACEMENT. INSTALLED NEW AXLE ASSY PER AMM 32-11-85.