Service difficulty report · Sleeve · Boeing 737

Difficulty date
October 21, 2022
Submitted
October 24, 2022
Operation
Air carrier
Aircraft
N28912
Make and model
Boeing 737
Aircraft serial
34828
Aircraft time
35,086 hours, 4,211 cycles
Part
Sleeve
Part number
515Z30073
Part serial
NA
Condition
Unknown
Location
Missing/#3 Axle
Stage of operation
IN
How discovered
O
Nature of condition
O
Precautionary procedure
K

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

What was found

WHEEL BRAKE NO 3 MAIN WHEEL STATOR DAMAGED BY WHEEL ROTOR KEY BEND AND GRINDING AWAY FIRST STATOR. UPON INITIAL INVESTIGATION FOUND BRAKE SLEEVE MISSING AND BRAKE RUBBING ON ALL ROTORS AND STATORS. DID NOT TAKE PART IN BRAKE AND BRAKE ROD INSTALLATION OTHER THEN AND TASK B787-A-32-45-01-00A-720A-A REV 165. NEW WASHER AND COT VERIFYING CORRECT INSTALLATION. TER PIN INSTALLED ON THE BRAKE ROD ASSEMBLY P/N: BACW10BP7PK A ND P/N: MS24665-304 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1983106 SN OFF 0539 TT # 1899833 SN OFF 0950 BRAKE ROD ASSY APROVED UPGRADE TO IDT FOR BRAKE CONECTOR ROD VERIFIED CORRECT INSTALLATION OF BRAKE UNIT AND BRAKE ROD CLEMENS BOOMER V891227 IS AUTHORIZED TO PERFORM IDT INSPECTION INSPECTION ON #3 MAIN LANDING GEAR AXLE PERFORMED IAW AMM TASK D CONNECTED PROPERLY AS PER AMM DMC-B787-A-32-45-07-00A-720-A-A ON BRAKE ROD INSTALLATION MC-B787-A-32-11-26-00A-280A-A REV 165, NO FURTHER DAMAGE FOUND, REV 165 AND BRAKE ROD INSTALLATION AS PER AMM NEW SLEEVE P/N 515Z3007-3 S/N: N/A INSTALLED. BRAKE AND MAIN WHE B787-A-32-11-20-00A-720-A-A. / ACTED AS DELEGATED INSPECTOR AND LL REMOVED AND REPLACED IAW AMM TASK B787-A-32-45-07-00A-720A-A BRAKE, MLG, 787 OFF 78-3244-9-0001 0539 ON 78-3244-9-0001 0174 WHEEL, TIRE, AS OFF 78-3244-9-0003 0950 ON 78-3244-9-0003 1360 IDT PERFORMED AND APPROVED, FOR INFO SEE TEXT ABOVE. ITEM CLOSED.