Service difficulty report · Proximity Sensor · Boeing 757224

Difficulty date
November 26, 2025
Submitted
December 2, 2025
Operation
Air carrier
Aircraft
N21108
Make and model
Boeing 757224
Aircraft serial
27298
Aircraft time
106,948 hours, 25,822 cycles
Part
Proximity Sensor
Condition
Miswired
Location
Zone 800
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

R1 ARM LIGHT WILL NOT COME ON. INDICATION INOP. VERIFIED GIRT BAR ENGAGMENT OF DR 1R. SWAPPED LIGHT MODULE FROM L1 DOOR, FAULT DID NOT FOLLOW, FIM SUGGESTS COULD BE GIRT BAR PROX SWITCH, ALL TS PERFORMED REF FIM 25-66 TASK 802. FOUND FWD SENSOR S10216 FAULTING AND S10217 WIRED INCORRECTLY. REPLACED FWD SENSOR AND REWIRED AFT SENSOR PER WDM 25-66-11-901 OPS CHECKS GOOD. INSTALLED SWITCH COVERS AND BUSTLE IAW AMM 25-66-11/201. OPS CHKD GOOD.