# SDR IPXA2021021565681

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 12, 2021
- Submitted: February 24, 2021
- Operation: Air carrier
- Aircraft: [N353UP](https://openairdocs.org/aircraft/N353UP), registered now
- Make and model: Boeing 767-34AF
- Registry model: [Boeing 767-34AF](https://openairdocs.org/model/boeing-767-34af) (OpenAirDocs)
- Aircraft serial: 37877
- Aircraft time: 20,677 hours, 7,435 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Warning Message
- Condition: False Indication
- Location: Cabin Pressure
- Stage of operation: CR
- 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/IPXA2021021565681

## Discrepancy

-RAPID DECOMPRESSION -NO EMERG DECLARED-O2 MASKS USED-NO OTHER EMERG EQUIP USED** CABIN ALTTITUDE WARNING AT FL 360 WITH BOTH PACKS ON. RECOVERED CABIN IN AUTO 1 WHEN SELECTED. DEFERRED PER MEL 21-31-1A. BITE TESTED PER FIM 21-31-00-815-803, NO FAULTS FOUND ON #1 OR #2 SYS.PERFORMED AUTOMATIC CABIN PRESS CONTROLLER BITE TEST ON #2 SYS - REF 767 AMM 21-31-00 PRESSURIZATION CONTROL SYS TEST/BITE TEST. NO FAULTS FOUND IN STORED MEMORY. SYS FUNCTIONING NORMALLY PER AMM 21-31-02-404-005 POST INSTALLATION TEST.

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