Airspace RDO altimeter unreliable within Boston ARTCC airspace.

06/171

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Airspace restriction

2023-06-29 04:01 - 2025-06-29 04:01

Period of Applicability

2023-06-29 04:01 - 2025-06-29 04:01

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Interpretation

RDO altimeter is unreliable within Boston ARTCC airspace, except beyond 20 nautical miles from the coastline, from the surface up to 5000 feet above ground level. Autoland, HUD to touchdown, and enhanced flight vision systems to touchdown are not authorized, except for specified RDO.

Message

AIRSPACE RDO ALTIMETER UNREL WI BOSTON ARTCC AIRSPACE EXC BEYOND 20NM FROM COASTLINE SFC-5000FT AGL. AUTOLAND, HUD TO TOUCHDOWN, ENHANCED FLT VISION SYSTEMS TO TOUCHDOWN NOT AUTHORIZED EXC FOR RDO A...

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Raw NOTAM

!BDR 06/171 ZBW AIRSPACE RDO ALTIMETER UNREL WI BOSTON ARTCC AIRSPACE
EXC BEYOND 20NM FROM COASTLINE SFC-5000FT AGL. AUTOLAND, HUD TO 
TOUCHDOWN, ENHANCED FLT VISION SYSTEMS TO TOUCHDOWN NOT AUTHORIZED 
EXC FOR RDO ALTIMETER TOLERANT ACFT AND ACFT USING APPROVED 
ALTERNATIVE METHODS OF COMPLIANCE. HEL OPS REQUIRING RDO ALTIMETER 
DATA TO INCLUDE OFFSHORE INSTRUMENT OPS, HOVER AUTOPILOT MODES, SAR 
AUTOPILOT MODES, AND CAT A/B/PERFORMANCE CLASS TKOF AND LDG NOT 
AUTHORIZED EXC FOR RDO ALTIMETER TOLERANT ROTORCRAFT AND ROTORCRAFT 
USING APPROVED ALTERNATIVE METHODS OF COMPLIANCE. DUE TO 5G C-BAND 
INTERFERENCE PLUS SEE AIRWORTHINESS DIRECTIVE 2023-10-02, 2023-11-07 
AND 5G C-BAND DOMESTIC NOTICES 2306290401-2506290401