Service difficulty report · Electronic Unit · Boeing 767323

Difficulty date
March 4, 2024
Submitted
March 7, 2024
Operation
Air carrier
Aircraft
N397AZ
Make and model
Boeing 767323
Aircraft serial
24035
Aircraft time
126,222 hours, 22,627 cycles
Part
Electronic Unit
Part number
849701
Part serial
291
Condition
Faulted
Location
Emergency Exit
Stage of operation
IN
How discovered
V
Nature of condition
J
Precautionary procedure
K

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

What was found

DURING SCHEDULED MAINTENANCE, EMERGENCY DOOR INDICATOR ILLUMINATED & EICAS MESSAGE DISPLAYED. DOOR VERIFIED CLOSED AND LATCHED SECURELY. PROXIMITY SWITCH ELECTRONIC UNIT (PSEU) BITE CHECK FLAGGED S192 SENSOR LIGHT. FOLLOWING TROUBLESHOOTING IAW WDM 52-71-12, LINE MAINTENANCE REPORTED, WIRE SHIELDING NEAR THE SPLICES DAMAGED. WIRING RESPLICED. EMERGENCY DOOR LIGHT & EICAS MESSAGE CLEARED, THE SENSOR LIGHT ON THE PSEU REMAINED. IAW FIM 32-09-FAULT TREE 803, R & R PROXIMITY SENSOR SWITCH S192 IAW AMM 52-71-01. NO FIX. IAW WIRING DIAGRAM MANUAL 52-71-12 & FIM 32-09-FAULT TREE 805, R & R PSEU. OPS CHECKED GOOD.