Service difficulty report · Proximity Sensor · Boeing 7378

Difficulty date
May 27, 2025
Submitted
May 29, 2025
Operation
Air carrier
Aircraft
N37257
Make and model
Boeing 7378
Aircraft serial
43442
Aircraft time
13,201 hours, 4,605 cycles
Part
Proximity Sensor
Part number
189929
Condition
Faulted
Location
Zone 800
Stage of operation
TO
How discovered
O
Nature of condition
N
Precautionary procedure
C

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

What was found

RTO FOR DOOR LIGHT TOMC REPORTS THE FAULT IS DOOR 1 LEFT BEFORE EACH DEPARTURE , VERIFY ASSOCIATED DOOR IS CLOSED AND LATCHED. DISPATCH DESK: 25 NAME: RS DATE: 28-MAY-25- TOMC APPROVES MEL 5271E. COMPLIED WITH MEL *DM* REFERENCE FIM 52-10 TASK 801 FOR TROUBLESHOOTING AND WDM 52-71-11-1. MATERIALS UPDATED WITH SWITCH 1-899-29; 29-2762-3-0093, AS NEEDED. REPLACED L1 DOOR SENSOR S199 AS PER AMM 52-71-11-400-801.PERFORMED DOOR SENSOR TEST AND FOUND TO BE WORKING PROPERLY AT THIS TIME AS PER AMM 52-71-11-710-801.DDP C/W. AND MEL IS CLOSED PARTS USED: 29-2762-3-0093,QTY :1 ADD EMP:U229195

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