FAA Advisory Circular 43.13-1B
Acceptable Methods, Techniques, and Practices
Aircraft Inspection and Repair
AC 43.13-1B | 9. Aircraft Systems and Components | 1. Inspection and Maintenance of Landing Gear | 9-15. Inflation of Tires
9/27/01
9-15. INFLATION OF TIRES. There is
serious danger involved with inflating and tire
assembly. The tire should not be inflated be-
yond the recommended pressure (when it is
not being installed in a safety cage). Over-
inflation can cause damage to the aircraft, as
well as personal injury. Under-inflation will
cause excessive tire wear and imbalance. The
airframe manufacturer’s load and pressure
chart should be consulted before inflating tires.
Sufficiently inflate the tires to seat the tire
beads; then deflate them to allow the tube to
assume its position. Inflate to the recom-
mended pressure with the tire in a horizontal
position.
AC 43.13-1B CHG 1
Tire check of storage aircraft should be done in
accordance with the applicable aircraft storage
manual.
9-16. PERSONAL SAFETY. When serv-
icing aircraft tires, personnel should stand ei-
ther in the front or rear of the wheel and avoid
approaching from either side of the tire. See
illustration below:
FIGURE 9-7. Examples of tread wear indicating over-
inflation and under-inflation.
NOTE: The use of nitrogen to inflate
tires is recommended. Do not use
oxygen to inflate tires. Deflate tires
prior to removing them from the air-
craft or when built-up tire assemblies
are being shipped.
TIRE DANGER
Safe
Approach Area
9-17. DISASSEMBLE THE WHEEL in
accordance with aircraft manufacturer’s in-
structions.
Danger
Do not stand or
approach here
Danger
Do not stand or
approach here
Do not attempt to disassemble wheel until the
tire has been completely deflated: otherwise
serious injury or damage to equipment can re-
sult.
Safe
Approach Area
Personnel should wear protective eye gear to
reduce the risk of eye injury due to inflation
and deflation of tires.
Do not attempt to remove valve core until tire
has been completely deflated. Valve cores will
eject at high velocity if unscrewed before air
pressure has been released.
Never attempt to remove wheel bolts or break
tire beads loose until tire has been completely
deflated: otherwise, explosive separation of
wheel components will result.
Par 9-9
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