# SDR AU001128

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 21, 2000
- Submitted: December 7, 2000
- Operation: General aviation
- Make and model: Saab SF340A
- Registry model: [Saab SF340A](https://openairdocs.org/model/saab-scania-sf340a) (OpenAirDocs)
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Duct
- Part number: 7275031506
- Condition: Cracked
- Location: Pneumatic System
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AU001128

## Discrepancy

(AUS) DURING CRUISE THE CREW NOTICED THE ITT DELTA T WAS 20 DEGREES HIGHER ON THE LT ENGINE COMPARED TO PREVIOUS FLIGHT.INVESTIGATION FOUND A CRACK AROUND THE HIGH PRESSURE BLEED DUCT EXTENDING FOR APPROXIMATELY 180 DEGREES ADJACENT TO THE FLANGE COUPLING TO THE ENGINE.

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