Service difficulty report · Relay · Boeing 767424ER

Difficulty date
December 29, 2023
Submitted
January 2, 2024
Operation
Air carrier
Aircraft
N76054
Make and model
Boeing 767424ER
Aircraft serial
29449
Aircraft time
89,804 hours, 12,779 cycles
Part
Relay
Part number
BACR13CF2A
Condition
Faulty
Location
K10232, Sta303
Stage of operation
CL
How discovered
O
Nature of condition
J, O
Precautionary procedure
B

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

What was found

RECEIVED ANTISKID ADVISORY CLIMBING PAST FL265. INTERMITTENT FOR 3 HOURS. PERFORMED ANTISKID/AUTAUBRAKE CONTROL UNIT SYST BITE TEST IAW FIM 32-42-FAUL TREE 815 FOUND VLV 3-4 FAULT REQUIRE AVIONICS FOR MORE T/S T/S PER FIM 32-42 TREE 815. PERFORMED WIRING CHECKS AND RESISTANCE CHECKS. ALL CHECKS GOOD, AND RESISTANCE VALUES WITHIN LIMITS. VALVE 3 RESISTANCE 175 OHMS, VALVE 4 RESISTANCE 176.6 OHMS, AND ALT VALVE 3-4 RESISTANCE 177 OHMS. PERFORMED BITE IAW 32-42-01. R/R AUTOBRAKE ANTISKID CONTROL UNIT IAW AMM 32-42-01. R/R (K10232)RELAY IRW FIM 32-42-FAULT TREE 821. OPS CHECK GOOD, NO MESSAGES OR FAULTS AT THIS TIME. OK TO CONTINUE.