Service difficulty report · Apu · Airbus A320232

Difficulty date
April 14, 2026
Submitted
April 17, 2026
Operation
Air carrier
Aircraft
N447UA
Make and model
Airbus A320232
Aircraft serial
836
Aircraft time
83,355 hours, 35,182 cycles
Part
Apu
Condition
Oil Consumption
Location
Zone 100
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

LEVEL TWO CHRONIC, APU LOW OIL MESSAGE. INDICATION SYS HAS BEEN CONFIRMED TO BE OPERATING CORRECTLY. CURRENTLY APU IS CONSUMING ONE QUART EVERY 8 HOURS. REF TSM 49-00-00-810-979-A AND AMM 49-00-00-810-979. CHECK FOR LEAKS FROM APU DRAINS SUCH AS FUEL CONTOL, APU BLEED CONTROL VALVE OR IGV ACTUATOR. IF LEAKS ARE FOUND REPAIR SOURCE OF LEAK, IF DRAINS DO NOT SHOW EVIDENCE OF LEAKS REPLACE APU. THANKS! LARRY THOMSON DENLM.CARRIED BY ELB LOCKED FOR LEVEL TWO PERFORMED STATIC LEAK CHECK OF APU AFTER RUN FOR 30 MINS FOUND NO VISIBLE LEAKS OR EVIDENCE OF EXTERNAL LEAKS. ACCOMPLISHED LEAK CHECK WITH APU RUNNING / IN OPERATION. FOUND NO EXTERNAL LEAKS DURING RUN. REMOVED APU REF AMM 49-11-11-000-003-A. REMOVED APU REF AMM 49-11-11-000-003-A. ACP'D RII INSPECTION; APU FIRE WALL INSPECTION, (NON ROUTINES 8572110, 8572158 AND 9572225 TO ADDRESS DISCREPANCIES) .REF. GMM 09-25-05. ACP'D IDT INSPECTION; APU FIRE WALL INSPECTION, (NON ROUTINES 8572110, 8572158 AND 9572225 TO ADDRESS DISCREPANCIES) .REF. GMM 09-10-05. INSTALLED APU REF AMM 49-11-11-400-003-A TORQUED 3EA MOUNT NUTS. ACP'D INSPECTION GMM 09-25-05 VERIFIED AND WITNESS APU MOUNTS TORQUED PER AMM 49-11-11. APU GENERATOR FEEDER CABLE INSTALLED AND NUTS TORQUED REF AMM 49-11-11-400-003-A. ACCOMPLISHED FULL INSTALLATION OF APU ALL HOOKUPS COMPLETED. REF AMM 49-11-11-400-003-A. INSPECTED VERIFIED FEEDER CABLE TORQUE OK INSPECTED VERIFIED SAFETY AND SECURITY AND LEAK CCOMPLIED WITH IN PREVIOUS UPDATES. OK FOR SERVICE.

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