SDR DALA2026052103097

Service difficulty report · Oil System · Airbus A320212

Difficulty date: May 20, 2026
Submitted: May 21, 2026
Operation: Air carrier
Aircraft: N356NW
Make and model: Airbus A320212
Aircraft serial: 818
Aircraft time: 80,988 hours, 38,354 cycles
System (JASC): 4990 · APU Oil System
Part: Oil System
Condition: Leaking
Location: Apu
Stage of operation: NR
How discovered: O
Nature of condition: K, B
Precautionary procedure: O

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

What was found

CREW REPORTS MUSTY HAZE IN CABIN, APU RUNNING PACKS OFF. TURNED ON PACKS, MADE ISSUE WORSE. WOULD NOT DISSAPATE UNTIL PACKS AND APU SHUT DOWN. OPENED APU ACCESS DOORS FOR INSPECTION IAW AMM 52-41. INITIAL VISUAL INSPECTION, FOUND LARGE QTY OF OIL IN APU INLET. REF LOG 1600573 FOR ADDITIONAL MSI PREVENTION INFORMATION, REF LOG 1600573 FOR WORK PERFORMED. (LP: 8678636). AIRCRAFT WAS GROUNDED

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