Service difficulty report · Brake · Boeing 737823

Difficulty date
July 28, 2017
Submitted
August 1, 2017
Operation
Air carrier
Aircraft
N991NN
Make and model
Boeing 737823
Aircraft serial
31242
Aircraft time
3,985 hours, 1,561 cycles
System (JASC)
3242 · Brake
Part
Brake
Part number
26123121
Part serial
B2878
Condition
Seized
Location
Zone 700
Stage of operation
LD
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

THE AIRCRAFT WAS GROUNDED. NUMBER 4 TIRE BLEW ON LANDING. THE FLIGHT CLEARED THE RUNWAY AND TURNED ONTO TAXI WAY Q WHERE IT STOPPED. ARFF RESPONDED, AND INVESTIGATED FOR A POTENTIAL FIRE, BUT NO ACTION WAS REQUIRED. THE PASSENGERS WERE DEPLANED AND BUSSED TO THE GATE. MAINTENANCE FOUND THE 4 BRAKE SEIZED, WHICH CAUSED THE NR 4 TIRE TO OVERHEAT AND BLOW. REPLACED NR 4 BRAKE IAW AMM 32-41-41. ALSO REPLACED THE NR 4 BRAKE COUPLING DUE TO LEAKS IAW MM 32-41-11, THE BLOWN NR 4 TIRE IAW AMM 32-45-00, AND THE NR 3 TIRE IAW AMM 32-45-00 DUE TO THE NR 4 TIRE FAILURE. FINALLY, INSPECTED THE NR 4 AXLE FOR DAMAGE IAW AMM 5-51-01, ALL CHECKS OK.