SDR DALA2024012501138

Service difficulty report · Oil System · Airbus A321211

Difficulty date: January 25, 2024
Submitted: January 25, 2024
Operation: Air carrier
Aircraft: N398DN
Make and model: Airbus A321211
Aircraft serial: 9360
Aircraft time: 12,586 hours, 5,457 cycles
System (JASC): 4990 · APU Oil System
Part: Oil System
Condition: Overserviced
Location: Apu
Stage of operation: IN
How discovered: O
Nature of condition: W, B
Precautionary procedure: K

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

What was found

AIRCRAFT 3098, SMELLED ELECTRICAL BURNING ODOR DESCENDING THROUGH 11,000 AND AGAIN SHORT FINAL THROUGH ROLLOUT. PILOTS, DOORS 1, 2, AND 4. CORRECTIVE ACTION: FOUND OVER SERVICED APU OIL AND EVIDENCE OF OIL CONTAMINATION IN BLEED SYSTEM. DEFERRED APU REPLACEMEMT PER MEL 49-10-01A. (LP4886542, 4886544)

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