# SDR UIEA2021051801139

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 18, 2021
- Submitted: May 21, 2021
- Operation: Air carrier
- Aircraft: [N1487A](https://openairdocs.org/aircraft/N1487A), registered now
- Make and model: Boeing 767-31K
- Registry model: [Boeing 767-31K](https://openairdocs.org/model/boeing-767-31k) (OpenAirDocs)
- Aircraft serial: 28865
- Aircraft time: 89,888 hours, 18,742 cycles
- System (JASC): [2310 · HF Communications System](https://openairdocs.org/jasc/2310)
- Part: Coupler
- Part number: 9640453001
- Part serial: 03441
- Condition: Damaged
- Location: Hf System
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2021051801139

## Discrepancy

LOST SATCOM ON FLIGHT. UNABLE TO RESET THROUGH CENTER CDU. WITH NO WORKING HF'S HAD TO PULL CB'S TO RESET SYSTEM, SATCOM WORKING INTERMITTENT ON PLANE.(<P>REMOVED AND REPLACED LEFT AND RIGHT HF COUPLERS. PERFORMED OPS CHECK OF SATCOM IAW AMM 23-25-00. OPS CHECK GOOD. NO DEFECTS NOTED. PER ENGINERRING CONDUCTED L & R SATCOM VOICE CALLS. OPS CHECK GOOD.</P><P>OFF PART: PN 964-0453-001, SN 03249</P>)

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