# SDR GTIA2020112335465

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 21, 2020
- Submitted: November 23, 2020
- Operation: Air carrier
- Aircraft: [N901NK](https://openairdocs.org/aircraft/N901NK), registered now
- Make and model: Airbus A320-271N
- Registry model: [Airbus A320-271N](https://openairdocs.org/model/airbus-a320-271n) (OpenAirDocs)
- Aircraft serial: 6833
- Aircraft time: 10,362 hours, 4,570 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Filter
- Condition: Odor
- Location: Recirculation
- Stage of operation: AP
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/GTIA2020112335465

## Discrepancy

FLIGHT ATTENDANTS IN THE AFT AREA REPORTED "DISTINCTIVE DIRTY SOCKS SMELL" WHILE ON FINAL APPROACH TO ORD.  WITH PACK 2 OFF SMELL WENT AWAY AFTER LANDING, PACKS A320 WITH MOD 31283/MP P7125 (FWC H2-F1 STND) AND WITH MOD.  30626/MP K6443 (ENHANCED ECS)-FAULT CAUTIONS ASSOCIATED WITH OPERATIVE SIDE NOT DISPLAYED.  PERFORMED DECONTAMINATION OF THE ENVIRONMENTAL CONTROL SYSTEM, IAW AMM 21-00-00-615-002.  REPLACED THE RECIRCULATION FILTERS, IAW ANN 21-21-41.  OPERATIONS CHECK GOOD, THIS CLEARS DMI NR 2648861-1.  MOC NOTED, PLACARD REMOVED, DMI LOG UPDATED.

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