# SDR AALA201604239004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 22, 2016
- Submitted: April 26, 2016
- Operation: Air carrier
- Aircraft: [N124US](https://openairdocs.org/aircraft/N124US), registered now
- Make and model: Airbus A320-214
- Registry model: [Airbus A320-214](https://openairdocs.org/model/airbus-a320-214) (OpenAirDocs)
- Aircraft serial: 1314
- Aircraft time: 47,465 hours, 22,276 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Air Filter
- Condition: Odor
- Location: Cabin
- Stage of operation: TO
- How discovered: O
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201604239004

## Discrepancy

AIRCRAFT WAS GNDED.  ACID BURNING OIL, SOCK SMELL AFTER TAKEOFF THRU 10,000', SUBSIDED AT CRUSE.  RETURNED DESCENDING THROUGH 10,000' THRU LANDING.  ACCOMPLISHED JC 26L00021001, 26L00036003 CABIN AIR QUALITY TROUBLESHOOTING.  R & R HEPA FILTERS & AIR QUALITY IMPROVED AMM 21-21-41--PB 401.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.