HSL 41 Preflight Preflight Gouge This is a

HSL 41 Preflight

Preflight “Gouge” • This is a guide to assist you in you preflight and identification of components. • This is not a substitute of NATOPS.

OBJECTIVES • Preflight Requirements • What to look for • CAUTIONS, WARNINGS, & NOTES

BEFORE YOU START. . . • Thoroughly check the ADB (Aircraft Discrepancy Book) • Are the Daily and Turnaround Inspections properly completed and up to date? • Fuel Samples? Oil Consumption? • Are there any gripes that catch your eye?

NATOPS CHAPTER 7 • 7. 2 PREFLIGHT – Prior to flight, the pilot in command shall ensure that a complete visual check of the helicopter has been conducted. – The aircrew preflight inspection may be divided among pilot, ATO, and Sensor Operator.

PREFLIGHT YOUR EQUIPMENT • Flight Suit (dog tags? ) – Make sure you are FOD free • Helmet – Lip light? Clean Visors? • Gloves – No holes • Flashlight

NATOPS CHECKLIST • Use NATOPS checklist items as a minimum. – Preflight with other HACs and ask questions! – Talk to other pilots, aircrew, and maintainers for what they look for. • Perform a daily and turnaround to see what our maintainers are looking for. • Inspect with extra concern areas that have recently been worked on or that have outstanding or recurring gripes in the ADB.

GETTING STARTED • Initial walk around – Look at the aircraft for anything that looks out of place. – “Man, that just ain’t right!” • Are tie downs, plugs, and covers still installed? • Leakage – Is there any noticeable oil or fuel on the ground? – Is fluid running down the side, underside, or tail?

WHEN IN DOUBT • If something doesn’t look right, ask! • To call a troubleshooter use (DEMOT): Make a “T” signal with both hands followed by a number. T -1 = AD, T-2 = AE, T-3 = AM, T-4 = AO, T-5 = AT AD AE AM AO AT

DOWNING AN AIRCRAFT • If you don’t feel it is safe, don’t fly it! • Maintenance Control can tell you if a gripe is up or down by checking the MIM’s (Maintenance Instruction Manuals). • QA is always there to help. – Make sure the question is answered to your satisfaction!

PREFLIGHT…. . NATOPS ITEMS ADDITIONAL ITEMS

Seat Harness ELT Seat Track

FLIR HCU Flight Controls

Wave Guide Bottles Selector Valve WPS- Select A or B Radar Pressure Pop out

TACAN Antenna Nose Bay Door Seal KIT 1 C Mount Windshield Wipers Temperature Sensors UHF 2 Laser Enable/ Disable, Gimble Switch Displacement Gyros NSIU Pitot Tube ECA FLIR Turret Unit AFCS ESM ACU RADOME Turn Rate Gyros Ground AAR-47 Data Link Antenna Search/Hover Lights ESM Antenna RADALT Antennas

Drive Shaft Covers Electrical Equipment Compartment Water wash Static Ports WOW Door Switch Gravity Refuel SO Window Sonobuoy Launcher Engine Exhaust APU Exhaust ESM Antenna Pylons and Pressure Stores Refuel Avionics Cooling Exhaust Position Light Ext ICS Arm Panel Fire Extinguisher Thermal Plug Anticollision Light Sonobuoy Antenna

Check all underside panels are secure.

Strut Grounding Wire (Hidden) Brake Lines Brake PUK Indicators Tire Condition

Lock Lever in unlocked position. Check up in locked position. Strut Condition Grounding Wire Tire Condition Shimmy Dampner Tail Grounding Wire Slip Marks Tail Probe

Lower Anti-collision Light UHF/TACAN Antenna Block I, UHF/VHF/TACAN Antenna Data Link Antenna

Pylon Fold Hinges Lockpin Keeper

Oil Cap IGB Cowling Cap Lock Oil Level

Stab Lockpins Keeper Tail Bumper

Stabilator Isolator Mount Position Sensor Arm Actuator Arm/Rod Forward Spar Web Forward Spar

Anti Collision Light Position Light AAR-47 Stab Position Link Stab Actuator Static Wicks

De-Ice Harness Pitch Change Links Bonding Wire Indexer Retracted Pitch Change Shaft Pitch Beam Tail Rotor Blades

TGB Oil Cap Balancing Weight Location TGB Cowling Pitch Beam Retainer Nut

Tail Rotor Spring Cylinders Anti-collision Light (Note: screw installed in top of upper light, not installed on lower light, to allow water to drain) Blade Boot Tail Rotor Quadrant Flexible “Thomas” Coupling Tail Rotor Servo Number 6 Driveshaft Centering Springs Cable and Pulley (each side of Quadrant) Hydraulic Lines

Tail Rotor - Cont. Pitch Beam Retainer Nut Index Actuator Indexer shown in extended position. Check retracted Pitch Change Beam Blade De-ice Connector Pitch Change Shaft

Chip Detector Retaining Ring

Abrasion strips and de-ice boots TGB Oil Level T/R Tip Cap

Disconnect Jaws Tail Driveshaft Disconnect Spring Thomas Coupling Viscous Damper

Underside of blades 4 5 6 Critical Fasteners

Transition Section Accumulator Dump Valve Tail Cone (Thermal Barrier removed) Tail Strut APU Accumulator Looking forward, above fuel cell ECS Duct Premature Breakaway Indicator Fuel Lines & Breakaway valves Dehydrator Kit Doppler Antenna (under platform)

Ice Detector (hidden) ECS Exhaust Rescue Hoist ECS Intake MAD Reeling Machine and Towed Body Avionics Cooling Inlet Mirror HF Antenna Cabin Door Pylon and Stores External Power Receptacle Access Float bag Fairing Main Landing Gear Drag Beam

Sono Launcher Bottle RAST Backup Messenger Cable Distributor Lock First Aid Kit Crash Axe Hoist Pendant APU Pump Handle Fire Extinguisher RAST Equipment Sono Launcher Selector Valve

APU Accumulator Pump (manual) Cabin HIFR Pressure HIFR Go-No-Go Gauge Filter APU Accumulator Pressure Gauge ECS Duct APU Pump Handle APU Accumulator Nitrogen Charge APU ESU

APU Accumulator Min 2650 PSI Winterization Kit Xsmn PDI

Hover Grip Rescue Station Hoist Shear Cover RAST Manual Release RAST Machine ICS cord Fire Extinguisher Hoist Pendant RAST Reeling Machine First Aid Kit Ratchet Canteen NATOPS

Hydraulics Bay - cont. Yaw Trim Servo Back-up Hydraulic Pump Collective Trim Servo Roll Trim Servo Pitch Bias Actuator (PBA) Pitch Trim Servo Avionics Cooling Inlet Pressure Reducer Failure Indicator

Hydraulics Bay - cont. SAS Actuator Boost Servo SAS Retaining Nut Redundant Link Forward

Hydraulics Bay - cont. Torque Shaft Lever Upper Support Bearings (under boots)

Hydraulics Bay - Cont. Back-up Pump Motor No. 1 Transfer Module Lateral Primary Servo Aft Primary Servo Blade Fold Transducers Forward Primary Servo Imperfect Threads Mixing Assembly/Unit

Hydraulics Bay - Cont. #2 AC Generator “Coffee Can” Hydraulic Reservoir Accessory Module #2 Hydraulic Pump Quick Disconnects Hydraulic Selector Valve Filter Bypass Popout Buttons Bleed valve Check for: Mated white paint stripe Temperature Dots Hydraulic Transfer Module Load Demand Spindle (LDS) Cable Roll pin and safety wire

Main Rotor Head Hydraulic Damper Hose BIFILAR Absorber Weight Blade Lockpin Pullers Pitch Lock Motor (pins, 2 per blade, shown retracted into housing) Pitch Horn Pitch Lockpin PCR Elastomeric Bearing Pitch Change Rod (PCR) Damper Droop Stop Heater Connector

Thrust Elastomeric Bearing (viewed through hub cutouts with mirror) Main Rotor Head - cont. Anti-flap Cam Spherical Elastomeric Bearing (backside viewed through hub cutouts using mirror BIM Indicator

Pitch Lock Pins Main Rotor Blade Elastomeric Bearing BIFILAR Absorber Weight

Balance Weight Attachment Arm Blade Fold Lock Pins Top of Blades Anti-Flap Stop BIM Indicator Blade Fold Motor

Main Rotor Hub Assembly Damper Anti-Flap Stop Pitch Change Horn Pitch Lock Actuator Droop Stop Heated Droop Stop Harness PCRs

Accumulator Pressure 1200 PSI minimum

Lower Pressure Plate Rotating Scissors Swashplate Forward Xmsn/Rotor

Oil Filler Cap Xmsn Dip Stick Gust Lock Indexer Rotor Brake Disc Aft Xmsn/Rotor

Pitch Control Rod New with elastomeric bearing OLD Pitch Control Rod

Transmission Oil Cooler Access Rotor Brake Disk Rotor Brake Accumulator No. 1 Driveshaft Fuel Lines (Crossfeed) APU AIR SOURCE Crossbleed Air Lines Scissors Indexer / Gust Lock Spark Shield Wear Indicator Pins Driveshaft Flexible Couplings Fuel Selector Cables (from Cockpit) Fuel Selector Valve XMSN Oil Cooler Blower / Fan Fire Extinguisher Line Transmission (XMSN) Oil Lines

Engine Compartment Fire Detector (1 of 2) Starter Oil Reservoir Cap Starter Fire Extinguisher Port (1 of 3) Bleed Air (crossbleed) Hydro Mechanical Unit (HMU) Power Available Spindle (PAS) Rotary Input Load Demand Spindle (LDS) Rotary Input

Engine Compartment - cont. Fuel Line Oil Filter HMU Fuel Oil Heat Exchanger Overspeed & Drain Valve Fire Extinguisher Port (2 of 3) Bleed Air Clamp (Inlet Anti-ice) Filter Popout Button Fuel Filter Fuel Pressure Switch

Engine Compartment - cont. History Recorder Fire Detector Fire Extinguisher Port (3 of 3) Oil Cap Mount Strut Inlet Particle Separator (IPS) Fire Detector (2 of 2) Electrical Control Unit (ECU)

Engine Compartment - cont. Combustion Section Mount Struts Deswirl Duct Clamp

Engine Compartment - cont. Viewed from port side IPS Blower Check pins (1 of 2, the other is out of view behind bleed air line) Bleed air (anti-ice) HMU Variable Geometry (VG) servo

High Speed Shaft Input Module Gimbal

Oil Filler Cap Oil Level

Variable Geometry Vane Links and Pins 5 th State Bleed Air Port Engine Anti-Ice & Start Bleed Valve

Fire Detector ECU DECU

Inlet

Missing Deswirl Vanes

APU Oil cap Bleed air APU Generator Combustor Bleed air Exhaust Pipe Starter Fire Detector (1 of 1) Inlet Screen

Heat Exchanger Plenum Camber Combustion Section Air Cycle Machine Air Inlet Oil Cap/Level J-Tube (Hidden) Water Separator Hydraulic Starter Fuel Control Generator Modulating Valve Thomas Coupling (Hidden)

ECS Compartment Forward Air Cycle Machine Number 2 Driveshaft Modulating J-tube Valve J-tube clamp Fire Extinguisher Line

Tail Drive Shaft Thomas Couplings Fire Bottles

12 Upper UHF/VHF Antenna ELT Antenna L A T C H E S

Outside Air Temperature (OAT) Sensors Antennas “Disco-ball” ALQ-144 IR Jammer Mount TACAN Antenna “Fisheyes” AAR-47 Missile Detectors Forward Datalink ESM Lower IFF Cargo Hook RAST Probe ADF port Main RAST Probe light Radome Starboard Mainmount Hover/Rescue Light Chaff/Flare ALE-39 Dispenser Mount Pilot & ATO compasses AFT Datalink Flux-valves Sonobuoy Tail RAST Probe electrical Sonobuoy connector UHF/VHF/TACAN Doppler Fuel Dump Pipe

Antennas - cont. Rotor Head Light Upper “Disco-ball” ALQ-144 IR Jammer Mount Cut outs for ALQ-144 Electrical Wires UHF/VHF/IFF GPS Emergency Locator Transmitter (ELT) HF Longwire