# SDR ASAA2017030720075

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 7, 2017
- Submitted: March 9, 2017
- Operation: Air carrier
- Aircraft: [N448AS](https://openairdocs.org/aircraft/N448AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36356
- Aircraft time: 3,783 hours, 1,288 cycles
- System (JASC): [2300 · Communications System](https://openairdocs.org/jasc/2300)
- Part: Satcom
- Condition: Malfunctioned
- Location: Nr 2
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017030720075

## Discrepancy

SATCOM NR 2 TRANSMISSION WEAK & UNREADABLE, SATCOM NR 1 OPS CHECKED GOOD.  ACFT GROUNDED.  SUCCESSFULLY ESTABLISHED COMMUNICATIONS WITH DISPATCH ON NR 2 SATCOM. ETOPS GROUND VERIFICATION TEST NORMAL IAW AMM 23-15-00.

---
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.
