# SDR 3EJA2026010900025

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 15, 2025
- Submitted: January 9, 2026
- Operation: Air carrier
- Aircraft: [N780JS](https://openairdocs.org/aircraft/N780JS), registered now
- Make and model: Cessna 525B
- Registry model: [Cessna 525B](https://openairdocs.org/model/cessna-525b) (OpenAirDocs)
- Aircraft serial: 525B0043
- Aircraft time: 13,721 hours, 9,364 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Control Valve
- Part number: 260132
- Part serial: 0942
- Condition: Failed
- Location: Cabin Pressure
- Part time: 7,375 hours, 1,786 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: P
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/3EJA2026010900025

## Discrepancy

AFTER DEPARTURE OF 27L OUT OF KPHL I FELT MY EARS POP. LOOKED DOWN AND THE PRESSURE CONTROLLER WAS BLANK. THIS WAS ABOUT 1500 AGL.

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