SDR AALA2019030879009

Service difficulty report · Apu · Airbus A321231

Difficulty date: March 5, 2019
Submitted: April 4, 2019
Operation: Air carrier
Aircraft: N508AY
Make and model: Airbus A321231
Aircraft serial: 3740
Aircraft time: 36,971 hours, 13,086 cycles
System (JASC): 4900 · Airborne Auxiliary Power Unit (APU) System
Part: Apu
Part number: 38007081WGEN
Part serial: P4262
Condition: Leaking
Location: Unknown
Part time: 20,517 hours, 8,955 cycles
Stage of operation: DE
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

DIRTY SOCK ODOR DETECTED WHILE DESCENDING THROUGH 10,000. THE ODOR DIMINISHED AFTER FIVE MINUTES AND THEN REOCCURED AFTER CONFIGURED FOR LANDING. F/A REPORTED THE ODOR AT THE GATE, APU WAS OFF. FOUND APU TO HAVE AN INTERNAL LEAK. NO EXTERNAL LEAKS NOTED. REMOVED AND REPLACED THE APU IAW CARD 26L31049003. OPS CHECKED GOOD.

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