SDR CALA2025112111383

Service difficulty report · Unknown · Boeing 777300ER

Difficulty date: November 20, 2025
Submitted: November 21, 2025
Operation: Air carrier
Aircraft: N2250U
Make and model: Boeing 777300ER
Aircraft serial: 66590
Aircraft time: 25,384 hours, 2,915 cycles
System (JASC): 2120 · Air Distribution System
Part: Unknown
Condition: Odor
Location: Cabin
Stage of operation: IN
How discovered: V
Nature of condition: B
Precautionary procedure: K

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

What was found

ON ACCOUNT OF A INDISTINGUISHABLE ODOR IN CABIN, INSPECTED DUCTS FOR EVIDENCE OF OIL IAW AMM 36-12-04-200-801. OPENED DUCT IN A/C BAY JUST BEFORE OZONE CONVERTER, NO EVIDENCE OF ANY CONTAMINATION. SHOULD READ OPENED BOTH LT AND RT SIDE DUCTS. PRIOR TO THE OZONE CONVERTERS.

More about the Boeing 777-300ER