If ground personnel cannot be heard by the Flight Deck crew,
what is the cause other than a defective headset ?
what is the cause other than a defective headset ?
The Service Interphone switch on the Aft Overhead Panel is OFF.
The external headset jacks are disabled when the Service
Interphone switch is OFF.
The external headset jacks are disabled when the Service
Interphone switch is OFF.
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| Miscellaneous Comm and NAV |