# SDR F3LA2023030100001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 28, 2022
- Submitted: January 3, 2023
- Operation: Air carrier
- Aircraft: [N702FR](https://openairdocs.org/aircraft/N702FR), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 06825
- Aircraft time: 23,892 hours, 10,156 cycles
- Engine: Cfmint CFM565B33
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Precooler
- Part number: 3732A010000
- Part serial: 81171253937
- Condition: Ruptured
- Location: Nr 1 Engine
- Part time: 4,122 hours, 1,783 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/F3LA2023030100001

## Discrepancy

AIR RETURN.  STRONG BURNING ODOR IN COCKPIT & CABIN,   PERFORMED TROUBLESHOOTING IAW TSM 05-50-00-810-831-A.   PERFORMED APU INSPECTION IAW 49-00-00-200-814 NO LEAKS NOTED.   RAN NR 1 PACK FOR 20 MINS NO ODOR NOTED. NR 1 ENG PRECOOLER FOUND LEAKING AND RUPTURED AND REPLACED.

---
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.