# SDR DALA2023082907010

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 23, 2023
- Submitted: August 29, 2023
- Operation: Air carrier
- Aircraft: [N371DN](https://openairdocs.org/aircraft/N371DN), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 8763
- Aircraft time: 13,933 hours, 6,101 cycles
- System (JASC): [2100 · Air Conditioning System](https://openairdocs.org/jasc/2100)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2023082907010

## Discrepancy

USED APU FOR ELECTRICAL POWER DURING START WITH AN AIR CART. ODOR STARTED SHORTLY AFTER APU START, ODOR DISAPPEARED ABOUT 1 HR. AFTER START. COULDN'T DETERMINE IF ODOR CAME FROM AIR CART OR APU. C/W CARD 0550-2002 AND 0550-2003. NO DEFECTS NOTED. (LP# 4190076)

---
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.