# SDR SWAA030591

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 13, 2003
- Submitted: March 18, 2003
- Operation: Air carrier
- Aircraft: [N680AA](https://openairdocs.org/aircraft/N680AA), registered now
- Make and model: Boeing 737-3A4
- Registry model: [Boeing 737-3A4](https://openairdocs.org/model/boeing-737-3a4) (OpenAirDocs)
- Aircraft serial: 23505
- Aircraft time: 51,106 hours, 44,847 cycles
- Engine: Ge CFM56*
- Engine time: 31,240 hours, 27,960 cycles
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Part number: 332A1000
- Part serial: 856436
- Condition: Malfunctioned
- Location: Nr 1
- Stage of operation: DE
- How discovered: O
- Nature of condition: E
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA030591

## Discrepancy

DURING DESCENT,THRUST LEVERS RETARDED, HEARD LOUD BANGING NOISE FROM NR 1 ENGINE.  REMOVED AND REPLACED NR 1 ENGINE PER MM.

---
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.