SDR SWAA2021011441341

Service difficulty report · Fire Detector · Boeing 7377H4

Difficulty date: January 12, 2021
Submitted: January 14, 2021
Operation: Air carrier
Aircraft: N249WN
Make and model: Boeing 7377H4
Aircraft serial: 34951
Aircraft time: 49,357 hours, 29,560 cycles
System (JASC): 2612 · Fire Detection
Part: Fire Detector
Condition: False Activation
Location: Aft Lavatory
Stage of operation: AP
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

AFT LAV FIRE ALARM SOUNDED ON APPROACH. NO SMOKE, FIRE OR FUMES NOTED. REMOVED & REPLACED AFT LAV SMOKE DETECTOR, IAW MM 26-14-01. ALSO COMPLIED WITH SELF TEST TASK 26-14-00-710-802. OPERATIONS CHECKED OK. ALSO INSPECTED THE AFT LAV SMOKE TEMP STRIP. NO ABNORMALITY NOTED, IAW MM REF 26-24-01.

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