Which location description corresponds to the 60 Hz converter?

• A. On the deck under the pubs library/bookcase (FS 236)
• B. In the cockpit console
• C. In the tail section
• D. In the cargo bay

Answer: (A)

The main idea here is understanding where support electrical equipment is placed using the aircraft’s designated zones and FS (fuselage station) references. A 60 Hz converter is a non-flight-critical, auxiliary power device that belongs in a maintenance or utility area where it can be accessed for service and kept separate from flight-critical systems.

Why the deck location under the pubs library/bookcase fits: that area is described as an equipment or utility deck, with a description that signals space allocated for racks, distribution gear, and support electronics. Placing the converter there keeps it out of the cockpit and other critical zones, while still being accessible for maintenance, cooling, and power distribution tasks. The other locations—cockpit, tail section, or cargo bay—are typically reserved for flight-critical controls, structural/propulsion components, or payload handling, not for housing a 60 Hz conversion unit.