SDR CALA2025121012018

Service difficulty report · Sensor · Boeing 7379

Difficulty date: December 7, 2025
Submitted: December 11, 2025
Operation: Air carrier
Aircraft: N37549
Make and model: Boeing 7379
Aircraft serial: 64475
Aircraft time: 9,775 hours, 3,291 cycles
System (JASC): 5270 · Door Warning System
Part: Sensor
Condition: Out Of Adjust
Location: Zone 800
Stage of operation: NR
How discovered: O
Nature of condition: N
Precautionary procedure: O

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

What was found

REPORTING INTERMITTENT MMSG 52-71003, PSEU AFT SERVICE DOOR SWITCH SENSOR IS TARGET FAR IN AIR. REQUEST MAINTENANCE IAW FIM TASK 52-10-00-810-802, ADJUSTED AFT DOOR S200 INDICATION SENSOR IAW AMM 52-71-11-820-801, OPS CHECKED GOOD. NO FUTHER DEFECTS NOTED.

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