# SDR 9JLA2023022140523

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 14, 2023
- Submitted: February 21, 2023
- Operation: Air carrier
- Aircraft: [N850DP](https://openairdocs.org/aircraft/N850DP), registered now
- Make and model: Raythn HAWKER800XP
- Aircraft serial: 258468
- Aircraft time: 10,173 hours, 6,755 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: None
- Condition: None
- Stage of operation: TO
- 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/9JLA2023022140523

## Discrepancy

THE FLIGHT CREW REPORTED THE AIRCRAFT WOULD NOT PRESSURIZE IN AUTOMATIC MODE CONTROL. THE MAINTENANCE PROVIDER TROUBLESHOT THE SYSTEM TO A CLOGGED JET PIPE AND JET PUMP REQUIRING CLEANING. FOR WORK PERFORMED REF HAWKER AMM. OPS CHECKS WERE PERFORMED AND FOUND TO BE SATISFACTORY. THE AIRCRAFT WAS RETURNED TO SERVICE.

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