Weighing inside a hangar

Aviation Mechanic General (AMG) practice question 5 of 25 on Weight and Balance. ACS element AM.I.C.K3 · difficulty: recall. Want to answer it in a timed quiz? Use the Aviation Mechanic General (AMG) practice mode.

Question bank updated 2026-09-22

QUESTIONWhy should an aircraft be weighed inside a hangar?

AHangar lighting is needed to read the load-cell displays accurately
BThe hangar floor is the only surface approved for platform scales
CWind over the surfaces can cause false scale readings

Show the answer and explanation

Correct answer: C. Wind over the surfaces can cause false scale readings

A — incorrect Lighting is not the reason given; wind acting on the aircraft surfaces is the concern.
B — incorrect Platform scales need a level floor, but the reason for weighing indoors is to keep wind from disturbing the readings.
C — correct The handbook states the aircraft should be weighed inside a hangar where wind cannot blow over the surfaces and cause fluctuating or false scale readings.

BACKGROUND

Weighing an aircraft is an exacting phase of maintenance that must be carried out with accuracy. The aircraft should be weighed inside a hangar where wind cannot blow over the surfaces, because wind produces fluctuating or false scale readings. The aircraft should also be clean inside and out, with special attention to the bilge area so that no water or debris is trapped. Thoughtful preparation saves time and prevents mistakes.

STUDY TIP

Associate the hangar requirement with wind, and the cleaning requirement with trapped water and debris in the bilge.

KEY POINTS

Weigh inside a hangar to keep wind off the surfaces.
Wind causes fluctuating or false readings.
Clean the aircraft, especially the bilge, before weighing.

SOURCES

FAA-H-8083-30B ch06 "Preparing an Aircraft for Weighing"

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