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CHAPTER 54 -NACELLES/PYLONS
TABLE OF CONTENTS
SUBJECT CHAPTER PAGE
General 54-00-00 1
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Nacelles/Pylons
A. General
The nacelle assemblyconsists of the engine cowling,the nacelle fuel cell, and the baggagelocker.
The engine cowlingconsistsof cantilever constructedupperand lowercowl assemblies attachedto the firewall. A hingeddoor on the upper cowl allows accessto the oil filler neckand quantity dipstick for servicing. Theaft cowl is also hinged for easier access and servicing. Thelowercowl provides mountingfor the cowl flap door and intercoolerair inlet. (Referto 71-00-00 for complete detail.)
Thenacelle fuel cell is locatedin a compartment directly aft of the enginefirewall. Thisbladder type fuelcell has a capacity of 75 U.S. gallons andprovidessingle-pointrefuelingof all fuel cellsin the wing. (Referto 28-00-00 for complete detail.)
The baggage locker,locatedaft of the nacelle fuel cell compartment, hasa capacity of 5.6 cubic feet, allowingfor 100 poundsof baggage.
The main nacellestructure,excludingthe engine cowling,consistsof longitudinal and lateral bulkheadsrivetedand sealed to the wing. (Referto 51-20-00 for sealingprocedures.)
NacelleAssembly Figure 1
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CHAPTER55 -STABILIZERS
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SUBJECT CHAPTER PAGE
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General 1 ControlSurfaceBalancing(Stabilizers) 1 CheckingControlSurfaceBalance 1 BalancingEquipment 1 BalancingDefinitions 1
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HorizontalStabilizer 1 HorizontalStabilizer Removal 1 HorizontalStabilizer Installation 1
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Elevator 1 ElevatorRemoval 1 ElevatorInstallation 1 HingeTubeAssemblyDismantling 3 HingeTube Assembly Reassembly 4 ElevatorTrimTabRemoval 4 ElevatorTrimTab Installation 4 ElevatorBalancingProcedure 5 ElevatorControl System FrictionMeasurement 7 CheckingElevator Trim TabFree Play 7
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Rudder 1 RudderRemoval 1 RudderInstallation 3 RudderTrim Tab Removal 3 RudderTrim Tab Installation 3 RudderBalancingProcedure 4 RudderControlSystem Function Measurement 5
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Stabilizers
A. General
1. ControlSurfaceBalancing(Stabilizers)
(a) CheckingControlSurfaceBalance
Themovablecontrolsurfacesare balanced wheninstalledat the factory,and normallyneed
notbe rebalanced unlesssurfaces are repainted,repaired,or replaced. Each controlsurface must be complete includingpaint,trim tab where required,balanceweights, static wicks,etc. Tabsmustbe held in neutral positionwith a small pieceof tape. Tab actuatingrodsmustbe in placeand connectedto tab. Disconnectedactuatingrod(forward ends) mustbe positionedto correspondto neutral tab position.
(b) BalancingEquipment
Balancingusing test weights(if required) calledforin text for each surface. Any controlsurface
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