SDR AALA202510016788

Service difficulty report · Smoke Detector · Boeing 737823

Difficulty date: September 30, 2025
Submitted: October 1, 2025
Operation: Air carrier
Aircraft: N931AN
Make and model: Boeing 737823
Aircraft serial: 30079
Aircraft time: 68,004 hours, 28,475 cycles
System (JASC): 2611 · Smoke Detection
Part: Smoke Detector
Part number: 4735975
Condition: Faulted
Location: Zone 100
Stage of operation: IN
How discovered: C
Nature of condition: L
Precautionary procedure: K

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

What was found

AIRCRAFT WAS NOT GROUNDED: FOUND AFT CARGO SMOKE DETECTOR M2246-B2 AND M2247-B3 FAULTY. REMOVED AND REPLACED AFT CARGO SMOKE DETECTOR M2246-B2 (AALA202510016788) AND M2247-B3 (AALA202510016525). PER AMM 26-16-01. OPERATIONAL CHECK GOOD.