# SDR ABXA20260703306

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 3, 2026
- Submitted: July 6, 2026
- Operation: Air carrier
- Aircraft: [N290CM](https://openairdocs.org/aircraft/N290CM), registered now
- Make and model: Boeing 767381
- Aircraft serial: 40564
- Aircraft time: 38,174 hours, 10,025 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Warning System
- Condition: False Activation
- Location: Cabin Pressure
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ABXA20260703306

## Discrepancy

AFTER TAKE OFF ON FLIGHT LEVEL 360 THE -CABIN ALT HI- ALARM WENT OFF. CREW PERFORMED PROCEDURE AND STARTED DESCEND ON FL320. THE CABIN ALT. WAS BACK TO NORMAL. AFTER LANDING, MTC PERFORMED (BITE) TESTS ON CABIN PRESSURE CONTROLLERS NR 1 AND 2. TESTED NORMAL AND GREEN LIGHTS ON BOTH CONTROLLERS (NO FAULT) IAW AMM 21-31-00 ACFT REMAINS NO (ETOPS). ACFT RETURNED TO SERVICE.

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