# SDR SWAA000110

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 18, 2000
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N323SW
- Make and model: Boeing 737-3H4
- Registry model: [Boeing 737-3H4](https://openairdocs.org/model/boeing-737-3h4) (OpenAirDocs)
- Aircraft serial: 23344
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Flex Boot
- Part number: 631700SH
- Condition: Cracked
- Location: Apu
- Stage of operation: CL
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA000110

## Discrepancy

AT 37000 FT CABIN ALTITUDE INDICATED 9800 FT, OPERATED STAND BY MODE AND PACKS ON HIGH POSITION TO START CABIN DESCENDING.  REMOVED AND REPLACED TORN APU PNEU MANIFOLD FLEX RUBBER BOOT AT KEEL BEAM AREA.

---
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.