Service difficulty report · Tire · Boeing 737900ER

Difficulty date
February 19, 2023
Submitted
February 20, 2023
Operation
Air carrier
Aircraft
N37464
Make and model
Boeing 737900ER
Aircraft serial
41745
Aircraft time
32,679 hours, 11,755 cycles
Part
Tire
Part number
7377899ERMLGCARB
Condition
None
Location
Mlg
Stage of operation
TO
How discovered
O
Nature of condition
O
Precautionary procedure
C

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

What was found

LOW SPD ABORTD T/O. AT APPRX 60 KTS ACFT PULLD HARD TO LEFT. EN GNS SYSMTRCL. FULL T/S BRAKE DRAG WHILE MLG IS LIFTED. ROTATED TIRES AND FOUND ALL BRAKES OPERATING NORMALLY. NO DEFECTS FOUND. FURTHER TROUBLESHOOTING REQUIRED. PERFORMED LAND VERIFY TEST TEST PASSED, PERFORMED DFCS BITE TEST VISUALLY CONFIRMED RUDDER, AILERON, SPOILERS, NOSE GEAR TIRES REF FIM 32-51-00-810-810 VERIFIED NOSE WHEEL STEERING HAS FULL PERFORMED FIM TASK 32-42 TASK 816 TO TEST FOR BRAKES GRAB, DRAG, FOUND FAULT SPEED TRIM WARNING FCC B @ 45KNTS 81 FEET. FAIRED AND IN NEUTRAL POSITION TRAVEL LEFT / RIGHT SEVERAL TIMES AND RETURNS TO ZERO INDEX EACH OR LOCK. MONITORED THE BRAKE PISTONS WHILE APPLYING AND RELEASE PRESSURIZED HYDRAULIC SYSTEMS MOVED FLIGHT CONTROLS NO FAULT ADD EMP:U341232 TIME. THE BRAKES. BRAKES OPERATED NORMALLY. NO DEFECTS FOUND. NOTED. JACKED EACH AXEL ALL WHEELS ROTATE FREELY. NEEDS FURTHER PERFORMED JACKING PROCEDURES FOR MAIN LANDING GEARS TO CHECK FOR ADD EMP:U341232 ADD EMP:U389626,U391803 REMOVED AND REPLACED MLG TIRES #1, 2 & 4 DUE TO CUPPING MARKS FOUND. REFERENCE LOG PAGES 3878714, 3878730 & 3878746 RESPECTIVELY. OPS CHECK GOOD, NO FURTHER DEFECTS NOTED AT THIS TIME.

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