25-78 Doors with Bubble Windows and Fans (continued)
C. Installation (continued)
Fan Assembly
1. Turn battery switch off and pull out AUX PWR (10 amp) circuit breaker on
circuit breaker panel.
2. Install hardware securing fan assembly to door stiffener; verify security.
3. Connect D580 fan assembly wiring to G140-9 harness assembly at connectors;
verify security.
4. Push in AUX PWR (10 amp) circuit breaker on circuit breaker panel and turn
battery switch on. Verify proper operation of fan. Turn battery switch off.
D. Scheduled Inspections
Refer to § 5-45 100-Hour/Annual inspection.
E. Configurations for Flight
1. Door(s) Off Operation
a. Remove bubble door(s) per Part B.
b. Revise Weight and Balance Record in R66 Pilot’s Operating Handbook (POH)
Section 6 to incorporate the following data:
Right Door Subtract:
Weight Long. Arm Long. Moment Lat. Arm Lat. Moment
Weigh door (lb) 49.50 in. (Weight x Long. Arm) 26.80 in. (Weight x Lat. Arm)
Left Door Subtract:
Weight Long. Arm Long. Moment Lat. Arm Lat. Moment
Weigh door (lb) 49.50 in. (Weight x Long. Arm) –26.80 in. (Weight x Lat. Arm)
2. Door(s) On Operation
a. Install bubble door(s) per Part C.
b. Revise Weight and Balance Record in R66 Pilot’s Operating Handbook (POH)
Section 6 to incorporate the following data:
Right Door Add:
Weight Long. Arm Long. Moment Lat. Arm Lat. Moment
Weigh door (lb) 49.50 in. (Weight x Long. Arm) 26.80 in. (Weight x Lat. Arm)
Left Door Add:
Weight Long. Arm Long. Moment Lat. Arm Lat. Moment
Weigh door (lb) 49.50 in. (Weight x Long. Arm) –26.80 in. (Weight x Lat. Arm)
APR 2019 Chapter 25 Furnishings Page 25.29
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