Apple PowerBook (2400c) - Manual (Page 132)

Traveling with the Macintosh PowerBook
IMPORTANT When you travel, always take along the Disk Tools disks that came
with your computer.
Airplanes and airports
Some airlines have reported that use of portable electronic devices may have
interfered with the aircraft’s flight navigation or communications systems.
Many airlines restrict or manage the use of electronic equipment during
flights. Please respect the regulations of the airlines.
A properly tuned X-ray machine should cause no damage to your Macintosh
PowerBook. But the motors that drive the belts on some security machines
have magnets that can damage your information. To avoid problems, place
the Macintosh PowerBook close to the entrance of the machine and remove it
as soon as possible. At most airports you can also have the computer hand-
inspected by security personnel.
Metal detectors should not damage the Macintosh PowerBook.
Security officials may require you to turn the Macintosh PowerBook on.
Make sure you have a charged battery on hand.
132 Appendix A