Service difficulty report · Control Unit · Boeing 737823

Difficulty date
November 20, 2025
Submitted
November 24, 2025
Operation
Air carrier
Aircraft
N964AN
Make and model
Boeing 737823
Aircraft serial
30093
Aircraft time
68,725 hours, 29,298 cycles
Part
Control Unit
Part number
142147
Part serial
A3652
Condition
Faulty
Location
Anti-Skid Sys
Part time
1,171 hours, 558 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 GROUNDED: ANTI-SKID INOPERATIVE LIGHT ILLUMINATED IN THE OFF POSITION. IN RTO, BOTH ANTI-SKID INOPERATIVE AND AUTO-BRAKE DISARM LIGHT ILLUMINATED. PERFORMED ANTI-SKID OPERATIONAL TEST, PER FIM 32-42-00. FAULTED MESSAGE POWER A/B. REMOVE AND REPLACED (AACU)-ANTI-SKID AUTO-BRAKE CONTROL UNIT. PER AMM 32-42-21.