# SDR UIEA2019081645172

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 14, 2019
- Submitted: August 16, 2019
- Operation: Air carrier
- Aircraft: [N1619A](https://openairdocs.org/aircraft/N1619A), registered now
- Make and model: Boeing 767-3Y0
- Registry model: [Boeing 767-3Y0](https://openairdocs.org/model/boeing-767-3y0) (OpenAirDocs)
- Aircraft serial: 26208
- Aircraft time: 72,858 hours, 12,805 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Gauge
- Part number: SETLOC420M
- Part serial: B1749EA
- Condition: Faulted
- Location: Cabin Pressure
- Stage of operation: CR
- How discovered: O
- Nature of condition: S
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2019081645172

## Discrepancy

CABIN ALT DISPLAY INDICATES ERRATIC AT FL 40 ALT. VARIED FROM 7.000 TO 10.000 WITH RATE FULLY PEGGED IN BOTH A CLIMB AND DESCENT. DIFF PRESSURE WAS CONSTANT.  FOUND CABIN PRESSURE GAUGE FAULTY,  REMOVED AND REPLACED PRESSURE GAUGE IAW REF AMM 21-33-01, OPS CHECKS OF SYS PER AMM 21-33-01-401 NO FAULTS NOTED.

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