# SDR SWAA991518

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 9, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N664WN
- Make and model: Boeing 737-3Y0
- Registry model: [Boeing 737-3Y0](https://openairdocs.org/model/boeing-737-3y0) (OpenAirDocs)
- Aircraft serial: 23495
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Duct
- Part number: 332A13055
- Condition: Ruptured
- Location: Nr 1 Engine
- Stage of operation: IN
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA991518

## Discrepancy

NR 1 ENG EGT IND 80 DEGREES HIGHER THAN NR 2 ENG, ALSO SLOW TO ACCELERATE.  FOUND 9TH STG DUCT RUPTURED ON ENG.  REMOVED AND RELACED 9TH STG DUCT.

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