# SDR CALA2022072501876

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 25, 2022
- Submitted: July 25, 2022
- Operation: Air carrier
- Aircraft: [N18223](https://openairdocs.org/aircraft/N18223), registered now
- Make and model: Boeing 737
- Aircraft serial: 28932
- Aircraft time: 72,037 hours, 26,061 cycles
- System (JASC): [2100 · Air Conditioning System](https://openairdocs.org/jasc/2100)
- Part: None
- Part number: NA
- Condition: None
- Location: Na
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2022072501876

## Discrepancy

AUTOFAIL PRESS LT AND ALT LT ILLUMINATED. ELACT FEED INTO AN A/D CONVERTER INPUT IS NOT IN RANGE).NO OTHER CURRENT FAULTS.AUTOFAIL EXT IN ALT.PERFORMED GROUND TEST BITE PROCEDURE (STEP E). SYSTEM TEST OK. NO OTHER FAULTS NOTED AT THIS TIME.

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