PREFLIGHT

AND

COMPONENT

RECOGNITION

GUIDE

1NUH-

FORWARD

This Preflight Inspection & Component Recognition Manual is designed toassist you in developing a thorough preflight routine by listing the steps in theorder you see them as you work your way around the aircraft.

Each major area incorporates a series of pictures to assist you in identifyingthe components to be checked. Although careful attention has been given tomake the steps found in the manual as complete as possible, canreplace when you are combing the aircraft, looking for a potentialproblem. Many items are not specifically addressed in the preflight steps; this isnot to imply that they have little importance... to list every flight control rod andnut and bolt would require considerably more than a single manual which youcould carry to the aircraft.

While this manual is up-to-date at its current printing, it is not designed toreplace the steps found in the NATOPS Manual or the Pocket Checklist. TheNATOPS and maintenance series of manuals are updated on a recurring basis toall UH-1N user activities, whereas updates to this manual will be limited.

Prepared by:Camp Pendleton SiteD.P. Associates, Inc.Arlington, VA 22204www.dpatraining.com 1999

nothingcommon sense

Preflight as if Your Life Depends on it!

i

HMT-303

The preflight is designed to visually inspect theintegrity of the aircraft and its components.

1 BEFORE THE PREFLIGHT

Receive an ODO brief, fuel card / packet (when required), and completea weight and balance.Check aircraft discrepancy logbook for past discrepancies and the statusof essential equipment for your flight.

1

Check for signatures by the Plane Captain and Maintenance Controlleron the Maintenance Data Form (Part A), and the Daily and TurnaroundRecord as appropriate. Daily Inspections are good for 72 hours andTurnaround Inspections are good for 24 hours.The Pilot-In-Command will sign the Part A.Inspect and check out appropriate gear from ALSS.

"Hey, we're short ontime so you grab the

chow - I'll sign thebook and we canskip the preflight."

"OK with me. Let'sjust skip to the inside

back cover of thispreflight book."

1

Check the area below the aircraft for fuel or oil spills or the presence ofFOD hazards.If ordnance is aboard the aircraft, perform a safety inspection using thechecklists in your NATOPS Pocket Checklist.

2 APPROACHING THE AIRCRAFT

All areas of the UH-1N and the surrounding vicinity should be checked for FOD.Check the position of your aircraft in relation to other aircraft, supportequipment, and any other potential hazards. Note wind direction.Visually observe the skid spread, general attitude, and integrity of the aircraft.

2

3 EXTERIOR CHECKS: SYSTEMS & EQUIPMENT

CABIN / COCKPIT CHECK

Check door for properoperation.Check seat for security andoperation.Check safety harness for wearand tear.Check inertial reel for properoperation.Check compass card forinstallation and calibrationcurrency (within last 12months).Check cabin fire extinguishers(2)for security and currency.Ensure the pilot's fireextinguisher does NOT interferewith the complete movement ofthe seat.Check control pedals forproper operation.With the battery turned on, checkDC voltage. Voltage should be22 volts minimum (if not, useAPU).With inverter on, check fuelquantity.

INERTIALREEL

FIREEXTINGUISHER

CHECK FORSHEAR WIRE

INERTIALREEL LOCK

SEATADJUST

CHECK FUEL QUANTITYWITH THE BATTERY AND

INVERTER ON

3

AIRCRAFT LIGHTS

For night flights, check all interior and exterior lights.

RED NAVLIGHTS

FLIR TURRET

FORMATIONSTRIP LIGHTS(GREEN / I.R.)

FORMATIONSTRIP LIGHTS(GREEN / I.R.)

ANTI-COLLISIONLIGHT / I.R. RING

WHITENAV LIGHT

WHITENAV LIGHT

GREEN NAVLIGHTS

LANDING LIGHT SEARCH LIGHT

4

EXTERIOR CHECK / NOSE AREA

Check the battery access door for condition of the seal, hinges, and latches.Check ice detector for damage and security.Ensure battery vent intake / exhaust are clear of FOD and that the exhausttube is cut at an angle, with the open part facing aft.Check the external power receptacle and cover for damage and security.Check the APR-39 antenna and AAR-47 sensor for security and damage.Inspect windshields and chin bubbles for crazing and cleanliness.Check windshield wipers for deterioration and security.

AN/AAR-47SENSOR

AN/APR-39ANTENNA

ICE DETECTORPROBE

BATTERY VENTINTAKE

BATTERY VENTEXHAUST

EXTERNAL POWERRECEPTACLE

5

Check battery connectors for corrosion and security, vent tube connectionsfor evidence of leakage, and inspection due date for currency.

The potassium hydroxide electrolyte is highly corrosive.Avoid contact with body.

Check voltage regulators for covers, security, and broken, burnt, orfraying wires.Check TACAN for security, damage, and wires / cannon plugs for properconnection and damage.Check the RPM warning box for security and damage.Check all air lines for security and damage.Check all wire bundles for security, breaks, burns, and fraying.Check the VHF-FM KY-58 (if installed) for installation and security.

WARNING:

BATTERY

BATTERYCONNECTOR

BATTERYVENT

RPMAUDIO BOX

GPS

KY-58

TACAN

VOLTAGE REGULATORS

6

FUSELAGE TOP

Examine green house for cracks and cleanliness. Be careful, greenhousedamages very easily.Remove pitot tube cover. Check pitot tube for damage, obstruction,corrosion, and excessive play.Check cable cutter, mount, and guides for working rivets, damage, andsecurity.

Check electric hydraulic filterindicator for green indication (inpilot’s chin bubble).Ensure transmission oil level lightcircuit breaker is in (in co-pilot’s chinbubble).Inspect tail rotor pedals and linkagefor damage and free of FOD.

WIRE CUTTER

"GREEN HOUSE"

SATCOMANTENNA

PITOT TUBE

ROTOR BRAKERESERVOIR CAP

ENHANCEDVIEW

HYDRAULIC FILTERCLOG INDICATOR

7

Inspect cabin roof for damage, rotor brake reservoir cap for security andleakage, VHF-FM Homing /UHF-VHF-AM/GPS/SATCOM antennas (ifinstalled) for damage and security, and external lights for damage andsecurity.

Check transmission cowling, latches, and ram air screen for security anddamage.Check engine inlet cowling for condition and security.Remove pillows and inspect engine air intakes for FOD or signs ofelectrical arcing.

TRANSMISSIONCOWLING

GPSANTENNA

FORMATIONSTRIP LIGHTS

NAV LIGHTS

RAM AIRINTAKE

8

Check hydraulic reservoirs filled, filler caps secure, fluid for contamination,and lines for security and leaks.Check #2 hydraulic pump for security and leakage.

Inspect main transmission for damage and evidence of leakage, weep holefor excessive leakage, mount bolts for slipmark movement, and security of oilfiller cap.Check rotor brake assembly for disc warpage, security, and leakage.Check transmission oil pressure transmitter, switch, and relief valve forsecurity, broken wires, and leakage.Check transmission oil filter for clog indication (look down the transmissionfrom the rear.)Check transmission oil temperature bulb and switch for security, brokenwires, and leakage.

#1 HYDRESERVOIR

#2 HYDRESERVOIR

#2 HYDPUMP

9

Check ALQ-144 and mount for security.Check anti-collision light for security and damage.Check C-box oil filler door / cap for security.

Inspect main drive shaft for security and grease leakage.Rotate shaft and check safety wire, slipmarks, and the entire shaft forsigns of damage or rubbing.Inspect input quill and k-flex coupling for leakage and mounts forslipmarking and security.

STARTERGENERATOR

K FLEXCOUPLING

OIL / FUELHEAT EXCHANGER

ANTI-COLLISIONLIGHT

MAIN DRIVESHAFT

FUELCONTROL

ALQ-144

INTAKE

10

Inspect synchronized elevator controls for security and condition.Inspect left and right lateral and collective servos for damage andsecurity.Check upper collective servo bolts for security and slipmarking.Check for play and security of attaching parts and trunnions.Check swashplate, swashplate positioning spring, control horns, andsupport assembly for damage and security. Check gimbal ring for play.Inspect scissors levers and drive link assemblies for damage, corrosion,play, and security.Check control tubes for chafing and play.Check dust boot on mast for security, condition, and 3 safety wires.Inspect rotor mast for damage.

COLLECTIVELEVER

SYNCHRONIZEDELEVATORLINKAGE

MASTBOOT

DRIVELINK

COMPONENTS COMMON TO BOTHAFCS & NON-AFCS AIRCRAFT

11

Check stabilizer bar dampener assemblies for damage, corrosion, securityof attachment, evidence of leakage, proper fluid level, color of fluid, andsecurity of lever assembly to dampener ring shaft (stab bar aircraft only).Inspect stabilizer bar assembly and connecting linkage tubes and weightsfor damage and security. Check leading and trailing edge of stabilizer barfor cracks. (stab bar aircraft only)Inspect main rotor hub assembly, static stops, and split cones for nicks,dents, and scratches.Inspect pitch change links for security and safety wire. Check pitch changehorns and bearing for condition and play.Inspect mixing levers for security and movement.Inspect drag brace assembly for slipmark, damage, and security ofattachment.Inspect main rotor grips for damage, corrosion, and evidence of leakage.Inspect mast retaining nut and lock for security and safety wire.

COMPONENTS COMMON TO BOTHAFCS & NON-AFCS AIRCRAFT

LEFT LATERALCONTROL TUBE

RIGHT LATERALCONTROL TUBE

XMSN OILFILL CAP

MASTBOOT

DRIVELINK

TRUNNIONS

SCISSORS

COLLECTIVELEVER

COLLECTIVECONTROL TUBE

SWASH PLATE ANDSUPPORT ASSEMBLY

12

MIXINGLEVER

PITCHCHANGE

LINK

DRAGBRACE

PITCHHORN

CONTROLTUBES

HYDRAULICDAMPENERS

BLADEGRIP

PITCHCHANGE

LINK

MIXINGLEVER

HUB

DRAG BRACE

PITCHHORN

STABILIZERBAR

CONTROLTUBE

NON-AFCS AIRCRAFT

AFCS AIRCRAFT

13

1. Stabilizer Bar 12. Collective Lever2. Mixing Lever 13. Input Drive Quill3. Pillow Block 14. Rotor Brake Quill4. Mast Retaining Nut 15. Sump Case5. Drag Brace 16. Hydraulic Pump and Tachometer Drive Quill6. Pitch Change Link 17. No. 2 Hydraulic Pump Drive Quill7. Control Tube 18. Support Case8. Hydraulic Damper 19. Transmission9. Mast 20. Pitch Horn

10. Swashplate and Support Assembly 21. Main Rotor Hub11. Drive Link 22. Main Rotor Grip Reservoir

NON-AFCS AIRCRAFT

14

1. Mixing Lever 11. Input Drive Quill2. Pillow Block 12. Rotor Brake Quill3. Mast Retaining Nut 13. Sump Case4. Drag Brace 14. Hydraulic Pump and Tachometer Drive Quill5. Pitch Change Link 15. No. 2 Hydraulic Pump Drive Quill6. Control Tube 16. Support Case7. Mast 17. Transmission8. Swashplate and Support Assembly 18. Pitch Horn9. Drive Link 19. Main Rotor Hub

10. Collective Lever 20. Main Rotor Grip Reservoir

AFCS AIRCRAFT

15

MAIN ROTOR BLADES

FUSELAGE AND LANDING GEAR (RIGHT SIDE)

Check cleanliness.Check upper and lower honeycomb skin surfaces for cracks, nicks,dents, bulges, corrosion, paint deterioration, delamination, and voids.Check upper and lower surfaces of spar for cracks.Check abrasive strips adjacent to scarf joints for bulging and cracks.Check trim tab for cracks and security of attachment.

Inspect skid tubes, skid tube shoes, and cross tube for damage andsecurity (no screws from the first 1/3 starting at the toe of the skid maybe missing, no 2 in a row or no more than 3 screws total can be missing).Inspect skid saddle screws for play.Inspect lower right side of cabin for damage and access panels forsecurity.Check pilot's door and window for damageand security.Check navigation lights for damage andsecurity.Check windows for cracks and cleanliness.Check wing door for positive latching andsecurity.

MAKE SUREPIN IS UP

WING DOOR

CROSS TUBES

SKID SHOE SKIDSADDLE

16

Check cabin area for security of internal gear,seats, sound proofing, and #1 hydraulic indicatorbuttons for clogged filter indications.Check first aid kits (4) for security, shear wire notbroken(if installed), and currency of inspection.Ensure all structural panels are installed.Check cabin deck for damage or delamination.Check transmission oil level through view port.Check AUX bag and connectionsfor fuel, damage, and security. IfAUX bag is not installed, checkconnection covers or panel in place.Check cargo door for positivelatching and aft door stops forsecurity. Check windows for cracks,cleanliness, and shear wiring ofwindow latches.Check #2 engine oil filler cap forsecurity.Check DAS mounts (if installed) forsecurity and condition of hard points. Ensure CADs are not installed.Check security of pressure and gravity refuel caps. Ensure gravity caplatch is pointing aft.

ENGINE OILFILLER CAP

GRAVITY REFUELPORT AND CAP

PRESSURE REFUELPORT AND CAP

AUX BAGCONNECTIONS

TRANSMISSION OILLEVEL SIGHT GLASS

17

ENGINE COMPARTMENT ACCESS PANEL

#2 engine compartment upper door support for security.Accessory gearbox for damage, proper oil level, and leakage.Flight idle solenoid and mechanism for damage and security.

Airframe Fuel filter for leakage, damage, and security. Check cannonplug and wiring on clogged filter indicator. Ensure Petcock is closed.

ENGINE MOUNT GAS GENERATOR CASE

EXHAUST STACK

FLIGHT IDLESOLENOID

AIRFRAME FUELFILTER

AIRFRAME FUELFILTER

FLIGHT IDLESOLENOID

PETCOCK

18

Forward engine mount for security and cotterkeys.Plenum chamber for damage and security. Ensure engine washreceptacle cap is installed.Gas generator case for cracks, distortion and hot spots.Exciter box, igniter cables, and igniters for damage, security, and safetywire.Fuel flow transmitter, surge dampener, flow divider, combustion chamberdrain valves, and fuel nozzles for leakage, damage, and security.Exhaust duct for damage.Forward bipod mount for damage and security.Fire detection / extinguisher system for wear and security. Ensuredetector is not touching compartment deck.Customer bleed air valve for damage and security.Oil lines / tubes for leakage, damage, and security.Engine compartment deck for delamination.

ENGINE MOUNT

FUEL NOZZLE

IGNITOR PLUG

FIRE DETECTIONELEMENT

FIREEXTINGUISHER

DUCTING

19

FUELCONTROL

FUEL NOZZLES

IGNITOROIL LEVEL

SIGHT GLASSITT TRIMBIAS BOX

ENG OILFILTER

PNEUMATICACCUMULATOR

TORQUECONTROL UNIT

20

UPPER AND LOWER C-BOX ACCESS DOORS

Main fire extinguisher for damage, security, and proper charge.C-Box for proper oil level.Pneumatic accumulator / air lines for damage and security.Ejector blankets / mounts for damage and security.#2 Nf governor / control rod for damage and security.#2 Nf tach generator for damage and security.#2 oil pressure switch for leakage.#2 engine oil filter for leakage.#2 T5 bias box for damage and security.C-Box and #2 engine chip detectors for damage and security.C-Box temperature bulb for damage and security.#2 torque pressure transmitter for damage and security.Oil cooler blower, shroud, and oil lines for leakage, damage, and security.Ensure drain petcocks are closed.Check #1 hanger bearing / support for leakage of grease and play.

HEATER COMPARTMENT ACCESS DOOR

HF Radio for security and condition (If installed).Heater noise suppressor and plenum for damage and security.Pressure refueling receptacle lines for damage and leakage.Electrical wire and terminals for damage and security.

HEATER NOISESUPPRESSOR

ANTI-COLLISION LIGHTPOWER SUPPLY

HEATER

21

CAUTION: DO NOT PUT HAND INTO BLOWERS!

Check #2 drive shaft and clamps for condition, security, and slipmark.Aft bipod and engine mounts for security and condition.Tail rotor control tube / bellcrank for security and condition.All wiring for security and condition.

EJECTORBLANKET

BLOWERPNEUMATIC

ACCUMULATOR

#2 ITT BIASBOX

TROQUEPRESSURE

TRANSMITTER

MAIN FIREEXTINGUISHER

#2 NF TACHGENERATOR

#2 NFGOVERNOR

#2 ENGINEOIL FILTER

C-BOX OILSIGHT GLASS

22

TAIL ROTOR SERVO COMPARTMENT ACCESS DOOR

Heater air intake screen for cleanliness and security.Heater mixing chamber, overheat switch, and wiring for condition andsecurity.Saltwater activated beacon for condition and security.Airframe structure tube for condition and security.Synchronized elevator control tubes / bellcrank for condition and security.Tail rotor servo for condition, security, excessive hydraulic fluid leakage, orvertical play. Inspect bolts for proper movement (SAN - "sometimes-always-never").Barometric altitude hold static pressure baffle for filter and security (AFCSaircraft only).Tailboom attachment bolts (4) for corrosion,slipmarking, and security.Tailboom electrical equipment, wiring, and cannon plugs for security.

CHECK NUTS"SOMETIMES ALWAYS NEVER"

S A N

23

TAILBOOM RIGHT SIDE

90 DEGREE GEARBOX AND TAIL ROTOR

Check security of ALE-39 dispenser cover and arming handle.Inspect exhaust stack and oil coolers for damage, leakage, or obstructions.Remove covers if installed.Check tail rotor driveshaft cowling and piano hinge for damage and security.Check radar altimeter antenna panels for condition and security (no morethan 3 screws total, 2 in a row, or 1 on leading edge can be missing).Inspect synchronized elevator for damage, security, and attaching bolts forslipmark movement.Inspect tailboom for damage, working rivets, and access panels for security.Check navigation lights for condition and security.Check APR-39 / AAR-47 mounts for condition and security.Check 42 degree gearbox mounts, oil level, chip detector, and security of oilfiller cap. Check quills for leakage.Inspect vertical fin for damage and working rivets.Inspect tail stinger for security and condition.Inspect tail stinger faring for holes and cracks all the way through.Check vertical fin tail rotor driveshaft cover for condition and security.Check #6 tail rotor driveshaft and flex couplings for damage, security,leakage, and balancing weights.

90 degree gearbox mount bolts.Check 90 degree gearbox sight glass and filler cap for security and leakage.Check 90 degree gearbox chip detector for security and leakage.Check excluder seal / housing, idler arm / lever, tail rotor pitch change tube,and tail rotor bellcrank for damage, play, and security.Pitch change links, bearings, and barrel nut for proper installation and play(Go-NoGo holes). Ensure all castleated nuts are cotterkeyed(8).Cross head assembly, retaining nut, and retainer cap lock.Counter weight links and weights. Inspect retaining nuts for cracks.Yoke assembly and static stops.Trunnion bearings.Blade attaching bolts for security and slipmark movement.Garlock seal for pooling or leakage.Gearbox output shaft and pitch change tube for condition.Tail rotor blades for damage.Inspect VHF-FM antenna for condition and security.

24

OIL FILLER CAP

OIL LEVELSIGHT GLASS

CHECK SEALFOR LEAKS

COUNTERWEIGHTS

YOKE

BLADE ATTACHING BOLTS

GARLOCKSEAL

COUNTERWEIGHT LINK

RETAININGNUT

PITCH CHANGE LINK

PITCH CHANGE LINK

VHF-FMANTENNA

25

TAILBOOM LEFT SIDE

Inspect vertical fin drive shaft cover and piano hinge for security andcondition.Inspect navigation light for damage.Check APR-39 antenna and AAR-47 sensor for condition and security.Check 42 degree gearbox mounts and cover for condition and security.Inspect synchronized elevator for condition and security.Inspect tail rotor driveshafts, balancing weights, hanger bearings, andclamps for condition, security, and slipmark.Check hanger bearings for leakage of grease.Ensure clamps are positioned 90 degrees off from each other.Check tail rotor driveshaft cover for damage and fasteners.Check condition and security of ALE-39 dispenser cover.Inspect tailboom for damage and working rivets.Check exhaust stacks and oil coolers for security and leakage.

SLIP MARKS

LOOK ON INSIDEOF COVER FOR

SLINGING GREASE

CHECKFOR MELTED

GREASE

26

FLASHER RELAY COMPARTMENT

Check UHF-AM KY-58 for installation and security.Check synchronizer control modules for security (AFCS aircraft only).Check security of Pitot Static Discharge Line.

UPPER AND LOWER C-BOX ACCESS DOORS

Reserve fire extinguisher for damage, security, and proper charge.C-Box oil pressure differential switch for security.Pneumatic accumulator / air lines for damage and security.Ejector blankets / mounts for damage and security.#1 Nf governor / control rod for damage, saftey wire, and security.#1 Nf tach generator for damage and security.#1 engine and C-Box oil pressure switch for leakage.#1 engine and C-Box oil filters for leakage.#1 T5 bias box for damage and security.#1 engine chip detector for damage and security.#1 torque pressure transmitter for damage and security.Oil cooler blower, shroud, and oil lines for leakage, damage, and security.

KY-58

FLASHERRELAY

27

Ensure drain petcocks are closed.#1 hanger bearing / support for leakage of grease.Check #2 drive shaft and clamps for condition, security, and slipmark.Aft tripod and engine mounts for security and condition.ALQ-144 and anti-collision light electrical connectors for security.All wiring for security and condition.

CAUTION: DO NOT PUT HAND INTO BLOWERS!

OIL FILTER

FIRE BOTTLE

BLOW OUT DISK

ENHANCEDVIEW

ITT TRIMBIAS BOX

#1 NFGENERATOR

C-BOX OILPRESSURE

DIFFERENTIALSWITCH

CHECK PETCOCKS PARALLELWITH ENGINE DECK

28

#1 ENGINE COMPARTMENT LOWER ACCESS PANEL

#1 engine compartment upper door support for security.Accessory gearbox for damage, proper oil level, and leakage.Flight idle solenoid and mechanism for damage and security.Airframe fuel filter for leakage, damage, and security. Ensure Petcock isclosed. Check cannon plug and wiring on clogged filter indicator.Check engine mounts for security and cotterkeys.#1 engine oil temp bulb and transmitter for leakage and security.Plenum chamber for damage and security. Ensure engine wash receptaclecap is installed.Gas generator case for cracks, distortion, or hot spots.Exciter box, igniter cables, and igniters for damage, security, and safety wire.P3 filter bowl and cap for security and safety wire.Fuel flow transmitter, surge dampener, flow divider, combustion chamberdrain valves, and fuel nozzles for leakage, damage, and security.ITT probe for connection and security.Droop cam compensator and linear actuator for security. Ensure castelatednut is cotterkeyed.Exhaust duct for damageFire detection / extinguisher system for wear and security. Ensure detector isoff compartment deck.Customer bleed air valve and oil lines / tubes for damage and security.Engine compartment deck for delamination and leakage oil.

DROOP CAMCOMPENSATOR

AIRFRAMEFUEL FILTER

FLIGHT IDLESOLENOID

ENGINE OILFILLER CAP

LINEAR ACTUATOR

29

INVERTER COMPARTMENT DOOR

Main and standby inverter for damage and security.Interface sensor amplifier modules for damage and security (AFCSaircraft only).Three axis rate gyro for damage and security (AFCS aircraft only).

APR-39 comparator for security.Wiring and cannon plugs for damage and security.

INVERTERS

APR 39COMPARATOR

30

FUSELAGE AND LANDING GEAR (LEFT SIDE)

Check #1 engine oil filler cap for security.Check DAS mounts (If installed) for security and condition of hard points.Ensure CADs are not installed.Inspect left skid tube, skid tube shoes, and crosstube for condition and security.Inspect skid saddle screws for play.Inspect lower left side of cabin andaccess panels for damage and security.Check navigation lights for damage andsecurity.Check wing door for positive latchingand security.Check windows for cracks andcleanliness.Check cabin area for installation andsecurity of ICS cords.Check aft dome lights for damage andsecurity.Check AUX bag and connections forfuel, damage, and security. If AUX bagis not installed, check connectioncovers or panel in place.Check cargo door for positive latching,security and all door stops. Checkwindows for cracks, cleanliness, andshear wiring of window latches.Check co-pilot's door and window fordamage, security and proper operation.Check seat and inertial reel for fordamage, security and proper operation.Check safety harness for "wear andtear".Check the Kit-1C (seen from the co-pilots side door) for security andinstallation.

KIT -1-C

31

CABIN UNDER SECTION / HELL HOLE

cotterkeys

CARGO HOOK

AUXILIARY FUEL CELL

Check landing light and search light for damage and security.Check cable cutter and mount for damage and security.Check UHF-AM, Marker Beacon, TACAN, UHF-DF, IFF, antenna fordamage and security.Check navigation light for damage and security.Check transmission oil filter for damage and security.Check #2 hydraulic filter indicator for clogged filter indications.Check left lateral, right lateral, and collective servos forleakage and .Check throttle controls / bellcranks and synchronized elevator controltubes / bellcranks for damage and security.Check hydraulic, oil, and fuel tubing / hoses for wear, leakage, andsecurity of attachment.Inspect rubber bumper around hell hole for condition and safetywire.Check forward and aft fuel cell drain valves for leakage.Check electrical boost pumps for leakage and wiring.

Inspect cargo hook mount forsecurity of attachment.Inspect hook for evidence ofdamage.Ensure manual release cablemoves freely.Check electrical release cannonplug connections are secure.Check operation of electrical andmanual releases.

Check condition of AUXbag / cover for security andproper installation.Inspect all lines for signs ofleakage. Ensure drain petcockis closed.Inspect connectors and wiringfor damage and security.

SPECIAL EQUIPMENT4

32

RESCUE HOIST

Check the security of mounting points.Check condition and security of base plate and linear actuator.Check for proper oil level.Check circuit breaker is properly set.Check condition of cable and hook assembly.Check for proper installation of CAD in guillotine cable cutter.Check operation of pilot / crewmember's hoist controls, up limit switch,and linear actuator.

33

NOTES:

34

NO TIME FORPREFLIGHT?

I'LL BE WAITINGFOR YOU!