# SDR GTIA2025091839079

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 17, 2025
- Submitted: September 18, 2025
- Operation: Air carrier
- Aircraft: [N963NK](https://openairdocs.org/aircraft/N963NK), registered now
- Make and model: Airbus A320-271N
- Registry model: [Airbus A320-271N](https://openairdocs.org/model/airbus-a320-271n) (OpenAirDocs)
- Aircraft serial: 11088
- Aircraft time: 10,420 hours, 4,531 cycles
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Part number: 3022143000
- Part serial: G2210747
- Condition: Leaking
- Location: Blue Hyd
- Part time: 10,420 hours, 4,531 cycles
- Stage of operation: DE
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/GTIA2025091839079

## Discrepancy

FUME EVENT ON DESCENT TURN OFF PACK 1. DESCRIPTION OF ODOR/FUMES: PERSISTENT, DIRTY SOCKS / OIL BURNING SMELL. APPARENT CABIN SOURCE: COCKPIT. FLIGHT DECK. NO VISIBLE SMOKE/HAZE. NO MEDICAL ATTENTION REQUIRED.-PERFORMED TSM 05-50-00-810-831-A. DECESION VALUE TABLE POINTED TOWARDS APU. UPON INSPECTION OF THE APU IAW AMM 49-00-00-200-811 FOUND APU OVER SERVICED. SERVICED TO CORRECT LEVEL IAW AMM 49-90-00. FOUND HYDRAULIC FLUID AROUND APU DOORS AND DOOR SEALS. NOT INSIDE APU. FOUND BLUE HYD PUMP LEAKING LEAVING TRAIL TOWARDS APU

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