SDR CALA2025092209069

Service difficulty report · Unknown · Boeing 737824

Difficulty date: September 19, 2025
Submitted: September 22, 2025
Operation: Air carrier
Aircraft: N79521
Make and model: Boeing 737824
Aircraft serial: 31662
Aircraft time: 47,245 hours, 16,808 cycles
System (JASC): 2120 · Air Distribution System
Part: Unknown
Condition: Odor
Location: Cabin
Stage of operation: CL
How discovered: O
Nature of condition: B
Precautionary procedure: O

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

What was found

POSSIBLE FUME EVENT, BRIEFED INBOUND CREW, NO LIGHT OFF ON NR 1 ENG LEAVING DRO, SUCCESSFUL SECOND ATTEMPT. ON TAKEOFF AND CLIMB SMELLED FAINT FUEL SMELL IN COCKPIT AND AFT GALLEY FOR A SPLIT SECOND AND WENT AWAY. SMELLED FOR A SECOND TIME AT LANDING FOR A SPLIT SECOND (FUEL SMELL). RAN BOTH ENGINES AT GATE WITH PACKS ON FOR 5 MINUTES WITH NO UNUSUAL SMELLS OR ODORS. AIRCRAFT OK FOR SERVICE. REF AMM 05-51-56/201.