B777 captain reported ground crew did not follow SOP during pushback.

Attributes
ACN	1753358
Time
Date	202007
Place
Locale Reference	LAX.Airport
State Reference	CA
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	B777 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Flight Plan	IFR
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine Flight Crew Instrument
Experience	Flight Crew Last 90 Days 156 Flight Crew Total 13938 Flight Crew Type 2676
Events
Anomaly	Deviation - Procedural Published Material / Policy

Narrative:

We had nearly normal communications with the ground crew before pushback. After receiving clearance to pushback there was no more communications with the ground crew. When the push stopped there was no command to set brakes. The tug stayed connected and the marshaller gave us hand signals to start engines. We did not; since we knew that we couldn't use hand signals on a wide body push. We set the brakes. The tug was connected. Since we had no communications; we called ramp and explained that we needed to talk to the push crew. They were not available by radio; so the ramp controller sent a supervisor out to fix [the] situation. We were informed that their headset cord was broken. We waited for them to bring a new headset. They plugged in. They cleared us to start. Even after they got the headset; the communication was not SOP. I was never told that the tow bar was disconnected; they just walked away. Now salute and release.

Original NASA ASRS Text

Title: B777 Captain reported ground crew did not follow SOP during pushback.

Narrative: We had nearly normal communications with the ground crew before pushback. After receiving clearance to pushback there was no more communications with the ground crew. When the push stopped there was no command to set brakes. The tug stayed connected and the marshaller gave us hand signals to start engines. We did not; since we knew that we couldn't use hand signals on a wide body push. We set the brakes. The tug was connected. Since we had no communications; we called ramp and explained that we needed to talk to the push crew. They were not available by radio; so the ramp controller sent a supervisor out to fix [the] situation. We were informed that their headset cord was broken. We waited for them to bring a new headset. They plugged in. They cleared us to start. Even after they got the headset; the communication was not SOP. I was never told that the tow bar was disconnected; they just walked away. Now salute and release.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.