Service difficulty report · Control Unit · Boeing 737823

Difficulty date
June 16, 2025
Submitted
June 19, 2025
Operation
Air carrier
Aircraft
N885NN
Make and model
Boeing 737823
Aircraft serial
31139
Aircraft time
38,707 hours, 16,664 cycles
Part
Control Unit
Part number
142147
Part serial
A4240
Condition
Faulted
Location
Zone 700
Part time
3,332 hours, 1,588 cycles
Stage of operation
NR
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

AIRCRAFT WAS NOT GROUNDED: AUTO BRAKE DISARMED, LIGHT ILLUMINATED WITH SWITCH IN RTO POSITION. CONFIRMED AUTOBRAKES INOPERATIVE. REMOVED AND REPLACED AACU-ANTISKID AUTOBRAKE CONTROL UNIT. PER AMM 32-42-21. OPERATIONAL TEST GOOD, PER AMM 32-42-00.