# SDR ASAA2022092140027

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 21, 2022
- Submitted: September 23, 2022
- Operation: Air carrier
- Aircraft: [N587AS](https://openairdocs.org/aircraft/N587AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35684
- Aircraft time: 53,071 hours, 15,449 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Satcom
- Part number: UNKNOWN
- Condition: Failed
- Location: Unknown
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022092140027

## Discrepancy

REPEATED ATTEMPTS TO CONTACT DISPATCH VIA SATCOM WAS UNSUCCESSFUL. WE COULD HEAR THEM, THEY COULD NOT HEAR US. SAME RESULT WHEN DISPATCH CALLED US. WE TRIED BOTH CAPT AND FO COMM PANELS BUT WITH THE SAME RESULT. GROUNDED - YES. PERFORMED OPS TEST OF SATCOM SYSTEM REF B737-800 AMM 23-15-00-730-801. DISPATCH HEARD VOICE CLEARLY FROM ALL POSITIONS. NO HISTORY 90 DAYS. A/C OK FOR SERVICE.

---
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.