25 OCT 2010 R66 Maintenance Manual Chapter 8 Weight and Balance Page 8.5
8-20 Weighing
Reweigh helicopter when helicopter empty weight and empty weight center of gravity have
been modified and if the accuracy of additional calculations is suspect.
Maintain a continuous record of the helicopter’s weight and balance using the Weight and
Balance Record in R66 Pilot’s Operating Handbook (POH) Section 6.
NOTE
Verify scales are calibrated. Operate scales according to scale
manufacturer’s instructions.
NOTE
Never weigh the helicopter in the wind. Weigh helicopter on a
flat, hard surface in a zero-wind environment for accurate scale
readings.
8-21 Preparing Helicopter for Weighing
1. Defuel helicopter per Section 12-42.
2. Service engine oil, hydraulic fluid, and main & tail rotor gearboxes per Chapter 12.
3. Clean aircraft per Section 20-10. Ensure helicopter is completely dry prior to weighing.
4. Remove foreign objects from baggage compartments and stowage areas.
5. Verify cowlings, removable panels, cabin doors, removable controls, and R66 Pilot’s
Operating Handbook (POH) are installed.
6. Verify Equipment List/Weight and Balance Data sheet (RF 134) and modifications
recorded in the Weight and Balance Record correspond with installed equipment and
recorded equipment locations.
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