# SDR ASAA2022031737711

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 17, 2022
- Submitted: March 21, 2022
- Operation: Air carrier
- Aircraft: [N589AS](https://openairdocs.org/aircraft/N589AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35686
- Aircraft time: 51,835 hours, 15,262 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: NR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022031737711

## Discrepancy

RIGHT PACK ILLUMINATES ON RECALL. EXTINGUISHES WITH MASTER CAUTION RESET. GROUNDED - YES. C/W FIM FAULT ISOLATION PROCEDURES. #2 PZTC BITE = THIS PACK - TCV FAULT. VERIFY GREEN GO LIGHT ILLUMINATED AND FAULT CLEARED. C/W #2 PZTC BITE = GREEN GO LIGHT ILLUMINATED. NO FURTHER ACTION IS REQUIRED. REF B737-800 FIM 21-53 TASK 821, 21-62 TASK 801 & 830.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.