Service difficulty report · Proximity Switch · Boeing 767323

Difficulty date
December 7, 2025
Submitted
December 10, 2025
Operation
Air carrier
Aircraft
N337AZ
Make and model
Boeing 767323
Aircraft serial
27060
Aircraft time
105,659 hours, 20,347 cycles
Part
Proximity Switch
Part number
849704
Part serial
C924
Condition
Inoperative
Location
Zone 800
Part time
4,912 hours, 1,966 cycles
Stage of operation
CR
How discovered
L
Nature of condition
N
Precautionary procedure
K

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

What was found

"EMER DOOR" DESCRETE LIGHT COMES ON OCCASIONALY IN FLIGHT. NO EICAS MESSAGE DISPLAYED. PLACED ON DEFERRAL 68621 MINIMUM EQUIPMENT LIST ATI-52-71-01-01 CATEGORY C. DUE 18 DECEMBER 2025. SUPPLEMENTAL TO PREVIOUS REPORT IXXA20251207083 DATED 12/07/2025 AT KILN. ACCOMPLISHED WIRING DETAIL INSPECTION FROM A191 TO C191 THROUGH S219, A193 TO C193 THROUGH S199, A195 TO C195 THROUGH S218, A197 TO C197 THROUGH S198 IAW B767 AMM 20-60-03 AND IAI B767 SUPPLEMENTAL WDM 52-71-12. NO DEFECTS NOTED. REMOVED AND REPLACED PROXIMITY SENSOR ELECTRONICS UNIT IAW B767 AMM 32-09-04. OPERATIONAL CHECK GOOD IAW B767 AMM 33-16-00. DEFERRAL 68621 CLEARED.