# SDR DALA2023020100816

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 28, 2023
- Submitted: February 1, 2023
- Operation: Air carrier
- Aircraft: [N812DN](https://openairdocs.org/aircraft/N812DN), registered now
- Make and model: Boeing 737932ER
- Aircraft serial: 31923
- Aircraft time: 29,716 hours, 11,304 cycles
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Not Entered
- Condition: Not Entered
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2023020100816

## Discrepancy

SHIP 3812 -DIV/PRESS- DIVERTED TO PHL DUE TO CABIN ALTITUDE WARNING ALARM OCCURRED IN CRUISE AT FL240. CORRECTIVE ACTION: FOUND CLAMP ON APU BLEED AIR DUCT BOOT DISCONNECTED. FOUND RIGHT PACK FCV CLAMP LEAKING. TIGHTENED BOTH. SINGLE PACK CONFIDENCE CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.

---
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.