# SDR 2026F00176

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 2, 2026
- Submitted: August 14, 2026
- Operation: General aviation
- Aircraft: [N615KJ](https://openairdocs.org/aircraft/N615KJ), registered now
- Make and model: Cessna 525B
- Registry model: [Cessna 525B](https://openairdocs.org/model/cessna-525b) (OpenAirDocs)
- Aircraft serial: 525B0225
- Aircraft time: 5,256 hours, 4,456 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Cabin Press Sys
- Part number: 52770116
- Part serial: 3323
- Condition: Warning Message
- Location: Zone 100
- Part time: 4,981 hours, 4,211 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: B, I
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2026F00176

## Discrepancy

AT 2252Z, SIS61 ON DEPARTURE FROM RUNWAY 33 AT ASE DECLARED AN EMERGENCY DUE TO A LOSS OF CABIN PRESSURE AND INFORMED THE RADAR CONTROLLER THEY WERE DESCENDING BACK TO 100 AND NEEDED TO DIVERT TO RIL. THEY DESCENDED FROM 121 TO 100 IN AN 115 MVA AND REQUESTED RADAR VECTORS. THE RADAR CONTROLLER, USING THE EMERGENCY TERRAIN MAP GAVE VECTORS TOWARDS LOWER TERRAIN AND CLEARED SIS61 TO RIL. WHEN THE AIRCRAFT WAS 25 MILES E OF RIL, THE PILOT REPORTED THEY THOUGHT THEY HAD FIXED THE ISSUE AND WANTED TO CLIMB TO TEST THE CABIN PRESSURE. THEY WERE ISSUED A CLIMB ABOVE THE MVA, REPORTED THEY WERE NO LONGER AND EMERGENCY AND ASKED TO CONTINUE TO THEIR ORIGINAL DESTINATION OF RNO. THE AIRCRAFT CONTINUED TO RNO WITHOUT INCIDENT. LOWEST OBSERVED ALTITUDE WAS 111 IN A 124 MVA AND 100 IN AN 115 MVA, PILOT REPORTED THEY HAD ALL TERRAIN IN SIGHT. THERE WERE 4 SOB AND 4 HOURS OF FUEL. SDR IS SUBMITTED LATE DUE TO NOT RECEIVING COMPLETE INFORMATION FROM THE CREW.

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