SDR CALA2025080707417

Service difficulty report · Warning Light · Boeing 7378

Difficulty date: August 5, 2025
Submitted: August 7, 2025
Operation: Air carrier
Aircraft: N17321
Make and model: Boeing 7378
Aircraft serial: 67577
Aircraft time: 6,304 hours, 2,172 cycles
System (JASC): 5270 · Door Warning System
Part: Warning Light
Condition: False Activation
Location: Zone 800
Stage of operation: TO
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

ON T/O ROLL GOT AFT ENTRY DOOR LIGHT, CONTINUED T/O RAN CKLIST LIGHT WENT OUT. FOUND MX MESSAGE 52-71003 PSEU AFT ENTRY DOOR SWITCH SENSOR IS TARGET FAR IN AIR, IN NOT ACTIVE STATUS. REF FIM 52-10 TASK 802. PERFORMED ENTRY DOOR INDICATION SENSOR TEST IAW AMM 52-71-11, TEST PASSED. A/C OK TO CONTINUE.

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