Apple PowerBook (Duo, 2300 Series) - Manual (Page 142)

Traveling with the Macintosh PowerBook
IMPORTANT Always take either the Disk Tools disk that came with your
computer or a set of system software disks that you made with the Floppy
Disk Maker program with you when you travel. If you experience system
software problems while traveling, you may need these disks to correct any
problem. (If you won’t have access to an external disk drive or dock, consider
carrying a pair of LocalTalk connectors and a LocalTalk cable so that you can
connect to a network or another Macintosh to share files or install software if
necessary.)
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.
135 Health, Safety, and Maintenance Tips