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UH-60 Crew Chief
Tasks, Common Standards, Limitations, Systems, etc.
| Question | Answer |
|---|---|
| The main rotor system has four blades made of: | Titanium/fiberglass |
| The drive train consists of four parts: | Main transmission, intermediate gearbox, tail rotor gearbox, and interconnecting drive shafts. |
| Kit installations include: | Range extension tanks, rescue hoist, medical evac, IR suppression, blade anti-icing/deicing, blackout devices, snow skis, winterization, static/repelling kit. |
| What are the two main differences between the A/L models? | Upgrade from T700-GE-700 engines to T700-GE-701C/-701D/CC engines, and main transmission modifications to increase durability. |
| The lower stage main landing gear shock strut will absorb energy from landings up to ___ feet-per-second. | 10 |
| Each wheel brake consists of: | Two steel rotating discs, brake pucks, and a housing that contains the hydraulic pistons. |
| The instrument panel is tilted at an angle of ___ degrees. | 30 |
| The tail landing gear consists of: | Two-stage oleo shock strut, tailwheel lock system fork assembly, yoke assembly, and wheel and tire. |
| The Central Display Unit contains instruments displaying what information? | Fuel quantity, transmission oil temperature and pressure, engine oil temperature and pressure, turbine gas temperature (TGT), and gas generator speed (Ng) readings. |
| The Pilot's Display Unit displays what information? | Pilot engine power turbine speed (% RPM 1 and 2), rotor speed (%RPM R) and torque (% TRQ). |
| On the PDU, three overspeed lights at the top will go on from left to right when a corresponding rotor speed of ___, ___, and ___ is reached. | 127%, 137%, and 142% |
| Emergency exits are: | The pilot and copilot doors and the four jettison-type windows on the two sliding cabin doors. |
| The fire detection system consists of: | Five radiation/sensing flame detectors, control amplifiers, and a test panel. |
| Upon impact of ___ Gs or more, both fire extinguishers fire into | 10 |
| The two hand-held fire extinguishers are located ________________________________. | On the cabin wall left of the right-hand gunner's seat and on the copilots seat. |
| Where are the three first-aid kits installed on the UH-60A/L? | Two on the back of the left pilot seat and one on the back of the right pilot seat. |
| What are the four classifications of hypoxia? | Hypoxic, hypemic, histotoxic, stagnant |
| What is hypoxia? | The lack of oxygen to the tissues of the body. |
| What are the five signs of hypoxia? | Hyperventilation, cyanosis, mental confusion, poor judgement and muscle incoordination. |
| What are the four stages of hypoxia? | Indifferent, compensatory, disturbance, and critical stage. |
| What is hypoxic hypoxia? | Insufficient oxygen pressure or other conditions prevent the diffusion of oxygen from the lungs to the bloodstream. |
| What is hypemic hypoxia? | A reduction in the oxygen-carrying capacity of the blood. |
| What is stagnant hypoxia? | Inadequate circulation of the blood. |
| What is histotoxic hypoxia? | Interference with the use of oxygen by the body tissues. |
| Explain this illuminating fault/parameter: #1 Fuel Low | Left fuel tank contains 172 pounds or less |
| Explain this illuminating fault/parameter: #1 Fuel Pressure | Left engine fuel pressure between engine-driven low-pressure fuel pump and high pressure fuel pump is low. |
| Explain this illuminating fault/parameter: #1 Engine Oil Pressure | Left engine oil pressure is too low for continued operation. |
| Explain this illuminating fault/parameter: #1 Engine Oil Temperature | Left engine oil temperature is above 150 degrees celsius. |
| Explain this illuminating fault/parameter: Chip #1 Engine | Left engine chip detector in scavenge oil system has metal chip or particle buildup. |
| Explain this illuminating fault/parameter: #1 Fuel Filter Bypass | Left engine fuel filter has excessive pressure differential across filter. |
| Explain this illuminating fault/parameter: #1 Engine Starter | Left engine start circuit is actuated. |
| Explain this illuminating fault/parameter: #1 Primary Servo Pressure | First stage pressure is shut off, or has dropped below the minimum, or servo pilot valve is jammed. |
| Explain this illuminating fault/parameter: Tail Rotor Quadrant | Tail rotor cable is broken or disconnected. |
| Explain this illuminating fault/parameter: Main XMSN Oil Temp | Main transmission oil temperature is above 120 degrees celsius. |
| Explain this illuminating fault/parameter: Boost Servo Off | Indicates loss of second stage hydraulic pressure to the boost servo, or a boost servo jam. |
| Explain this illuminating fault/parameter: Left Pitot Heat | Left piot heat element is not receiving power with PITOT HEAT switch ON. |
| Explain this illuminating fault/parameter: Chip Input Module, LH | Metal particle has been detected. |
| Explain this illuminating fault/parameter: Chip Access Module, LH | Metal particle has been detected. |
| Explain this illuminating fault/parameter: Main Rotor De-ice Fail | Indicates a short or open in the main rotor de-ice system, which will disable the system. |
| Explain this illuminating fault/parameter: Main XMSN Oil Pressure | Main XMSN oil pressure is below about 14 PSI. |
| Explain this illuminating fault/parameter: #1 Generator | Left generator is not supplying power to the buses. |
| Explain this illuminating fault/parameter: #1 Generator Bearing | Generator main bearing is worn or has failed. |
| Explain this illuminating fault/parameter: #1 Converter | Left converter (ac to dc current) has no output. |
| Explain this illuminating fault/parameter: AC Essential Bus Off | No power (115 volts AC, Phase B) is being supplied to the AC essential bus. |
| Explain this illuminating fault/parameter: Battery Low Charge | SLAB - Voltage on the battery utility bus is at or below 23 VDC. |
| Explain this illuminating fault/parameter: Gust Lock | Gust Lock is not fully disengaged. |
| Explain this illuminating fault/parameter: #1 Oil Filter Bypass | Left engine oil filter pressure differential is excessive. |
| Explain this illuminating fault/parameter: #1 Hydraulic Pump | Left hydraulic pump output pressure below minimum. |
| Explain this illuminating fault/parameter: IRCM Inoperable | Malfunction has been detected by the infrared countermeasure system or system is in a cooldown cycle. |
| Explain this illuminating fault/parameter: Intermediate XMSN Oil Temp | Intermediate gearbox oil temperature is excessive. |
| Explain this illuminating fault/parameter: Stabilator | Stabilator system is turned on but in the manual mode. |
| Explain this illuminating fault/parameter: Flight-Path Stab | Indicates that FPS is inoperative in one or more axis. |
| Explain this illuminating fault/parameter: Chip Intermediate XMSN | Metal particle has been detected by the chip detector. |
| Explain this illuminating fault/parameter: Chip Main Module Sump | Metal particle has been detected by the chip detector. |
| Explain this illuminating fault/parameter: Main Rotor De-Ice Fault | Partial failure of the de-ice system. Uneven shedding of ice can be expected. |
| Explain this illuminating fault/parameter: #1 Reservoir Low | Hydraulic fluid level has dropped below about 60% of full capacity. |
| Explain this illuminating fault/parameter: DC Essential Bus Off | No power is being supplied to the DC essential bus. |
| Explain this illuminating fault/parameter: Battery Fault | Battery has exceeded safe operating temperature. |
| Explain this illuminating fault/parameter: SAS Off | Hydraulic pressure applied to the SAS actuator is below minimum |
| Explain this illuminating fault/parameter: IFF | Mode 4 is not capable of responding to interrogation. |
| Explain this illuminating fault/parameter: APU Fail | APU was automatically down by electrical sequence unit. |
| Explain this illuminating fault/parameter: #1 Tail Rotor Servo | Pressure to the tail rotor servo is below minimum, or servo pilot valve is jammed. |
| Explain this illuminating fault/parameter: APU Oil Temperature High | APU oil temperature is above the maximum. |
| Explain this illuminating fault/parameter: Trim Fail | Yaw, roll or pitch trim actuators are not responding accurately to computer signals. |
| Explain this illuminating fault/parameter: Ice Detected | Ice has been detected. |
| Explain this illuminating fault/parameter: Back-Up Reservoir Low | Hydraulic fluid level has dropped below about 60% of full capacity. |
| Explain this illuminating fault/parameter: Cargo Hook Open | Cargo hook load beam is not latched. |
| Explain this illuminating fault/parameter: Hook Armed | Cargo hook release system is armed. |
| Explain this illuminating fault/parameter: #2 Engine Out | No. 2 engine Ng speed is below 55%. |
| Explain this illuminating fault/parameter: Low Rotor RPM | Rotor speed is below about 96% RPM R. |
| When pressure fueling, pressure from the fuel hose must not exceed _____. | 55 PSI |
| If flights are expected to exceed __ hours, what must the engine oil level be? | 6; It must be at the full line of sight glass before flight. |
| Wait at least __ minutes after engine shutdown before checking engine oil level. | 20 |
| Fuel settling time for JP fuel is ___ hour per foot depth of fuel. | 1 |
| The minimum requirements for parking are: | Gust lock engaged and wheel brakes set, tailwheel locked, and wheels properly chocked. |
| What are the standard maximum weight limitations for the UH-60A/L, respectively? | A-20,250, L-22,000 |
| What is the maximum weight restriction for an external load on a UH-60L? | 23,500 pounds |
| The maximum weight that may be suspended from the rescue hoist is ____pounds. | 600 pounds |
| The restraint criteria maximums for G force movements in four directions are: | Forward, 12Gs; Rear, 3 Gs; Lateral, 8 Gs; Vertical 3 Gs |
| What are the 3 types of vision, and at what times of day/night are they used? | Photopic: Used in bright light; Mesopic: Used in low lighting (bright moonlight/dusk/dawn); Scotopic: Dimly lit nights. |
| What parts of the eye receive color vision, and what receives only black and white? | Cones receive color, Rods only receive black and white. |
| What is the range (in degrees) of a night blind spot? | 5-10 Degrees |
| A physiological blind spot produces a loss of vision in a range of ____ degrees. | 5.5-7.5 |
| Myopia is... | Nearsightedness |
| Hyperopia is... | Farsightedness |
| Presbyopia is... | Hardening of the lens. |
| Astigmatism is... | A defect in the cornea. |
| It takes _____ minutes to reach Optimum Night Vision from bright light. | 30-45 minutes. |
| What are the self-imposed stresses? | Illness, Physical Fitness, Drugs, Exhaustion, Alcohol, Tobacco, Hypoglycemia |
| GRAM is an acronym used for monocular cues of distance estimation and depth. It stands for: | Geometric perspective, Retinal image size, Aerial perspective, and Motion parallax |
| Geometric perspectives include: | Linear perspectives, Apparent foreshortening, and Vertical position in the field. |
| Retinal Image Size when estimating depth and distance includes: | Known size of objects, the increasing or decreasing size of objects, terrestrial association, and overlapping contours. |
| Aerial perspectives include: | Fading of colors and shades, Loss of detail and texture, and the position of light source and the direction of shadows. |
| Motion parallax is: | Apparent relative motion of stationary objects as viewed by an observer who is moving across the landscape. Near objects appear to move opposite the path of motion; far objects seem to move in the direction of motion or remain fixed. |
| Fire! Fire! Fire! CRASH! SAR! is an acronym for what visual illusions on the NVG goggles? | False horizons/Flicker vertigo/Fixation/Confusion w/ ground lights/Relative motion/Autokinesis/Structural illusions/Height-perception illusion/Size-Distance illusion/Altered planes of reference/Reversible perspective |
| A false horizon is: | A misinterpretation of the horizon. |
| Flicker vertigo is: | a situation in which light flickers at a rate of 4-20 cycles per second. |
| Fascination/fixation is: | Where the pilot is intent on hitting the target and forgets to fly the aircraft, flying into the target or ground. |
| Relative motion illusion is: | confusion as to who is moving in what direction or at what rate of speed. |
| Autokinetic illusions occur when: | there is a lack of visual references. |
| Structural illusions include: | Curved glass, heat waves, rain, snow, sleet, or other disturbances, or distortions. |
| Height perception illusions occur when: | flying over sand, snow or water, or when flying through haze, smoke, or fog. |
| The size/distance illusion is: | a false perception of distance from an object on the ground or in the air, and misinterpreting an object's size to be the same as an object they are accustomed to viewing. |
| Altered planes of reference include: | Approaching a line of clouds or mountains, a climb in altitude, or a tendency to tilt away from the clouds. |
| A reversible perspective is: | When viewing another aircraft, trying to determine where the other aircraft is heading. Observe the aircraft lights: RED, RIGHT, RETURNING. |
| What are the operational defects for NVGs? | Shading, Edge glow, Flashing/Flickering, Emission points. |
| What are the cosmetic blemishes for NVGs? | Bright spots, black spots, chicken wire/honeycombs, image disparity, and output brightness variation. |
| TASK 1000 # Participate in a crew mission briefing | Verbally acknowledge complete understanding of brief (direct attn to briefer) |
| TASK 1014 # Operational checks on ALSE | Inspect and operational checks on ALSE Correct use of personal and mission ALSE Brief passengers in use of ALSE |
| TASK 1016 *# Perform internal load operations | Perform thorough passenger briefing, and manifest pax Load per the load plan, if applicable Correctly secure passengers and the load (continue to monitor) Ensure floor loading limits are not exceeded |
| TASK 1020 * Prepare aircraft for mission | Install, secure, inspect and inventory all mission equipment Prepare the A/C for the assigned mission (prep mission equip and ops cks IAW AWR's and CL's) |
| TASK 1022 * Perform pre-flight inspection | Pre-flight per-10/CL& SOP's enter in logbook (desc) Duties as directed by the PC assist all preflt & before pre (NCM will ensure all cowls and equip are secure post preflt) |
| TASK 1024 * Before start / leaving helicopter checks | Perform proc and cks IAW aircraft -10/CL (HIT) check Enter info in logbook/hitlog (Secure the ACFT post flight per -10 /SOP, clear acft eng's & apu, perform duties as dir by pc) |
| TASK 1026 * Maintain airspace surveillance | Brief A/S surv and assgned scan sectors prior to flt Announce traffic, obstacles, drift or altitude changes Announce when focused inside/back outside as app for flt Maintain airspace surveillance in assigned sectors (traffic-clock angles/distance/ty |
| TASK 1032 * Perform radio communication | Operate ICS with crew Correctly Use appropriate radio to communicate (NCM) (Example: SPOT report or SALUTE Use correct communication procedures and phraseology) |
| TASK 1048 * Perform fuel management procedures | Initiate within 10 minutes of entering mission profile Burn rate +/- 50 pounds, 15 to 30 minutes after initiate Monitor remaining fuel and fuel consumption |
| TASK 1038, 1040, 1052 and 1058* Perform Hovering, Vmc T/O, flight and Approach | Appropriate common standards (task 1026 airspace survellieance) (on 1058 - approach NCM will advise of suitable landing area) |
| TASK 1062 * Perform slope operations | Confirm suitable landing area Confirm parking brake is set before landing Announce drift and altitude (ncm should be aware of limits and normal hover attitude) |
| TASK 1070 * Respond to Emergencies | Prep ACFT, crew, and pax for an emerg landing. Pax seat belts on,crew harnesses are locked. Look for Suitable landing area /alert the crew to areas location Evacuate pax to designated area IAW the crew briefing. |
| TASK 1162 #* Perform emergency egress | Perform/describe using emer exits per -10 Perform/describe emer egress of pilots/NCM/px from seat Perform/describe emer eng shutdown in -10 (pcl's,boost,fuel. note: tgt +538) Assit Pax to designated assemble area per brief Perform/describe duties in c |
| TASK 1188 *# Operate ASE | Prepare equipment for operation Emply/describe using installed ASE |
| TASK 1190 # ID/perform and arm signals | Identify/perform at a minimum, ACFT left, right, forward backward, take off, landing. (FM 21-60 signal device.) |
| TASK 1262# Crew level AAR | All crew will actively participate in the review. (appropriare common standards) |
| TASK 1194 * Perform refueling operations | Ensure safety procedures are IAW 10-67-1/operators manual (FM 3-04.111/FM 1-113) Ensure all doors/windows are closed on refuel side(hot refuel ops) Ensure acft is refueled IAW 10-67-1, -10 and SOP (FM 3-04.111,fm1-113) Enter info on 2408-12 |
| TASK 1194 * Perform refueling operations (COLD) | Vehicle is parked away from the ACFT, grounded/fueled per FM 10-67-1. All personnel not involved are a safe distance away. Ensure all caps on ACFT secured /grounding cable removed. |
| TASK 1194 * Perform refueling operations (HOT) | Proper separation between fuel ACFT, and fueling equip Assist in fueling operation per FM 10-67-1caps are secured and grounding cable rvd.) Note: (Fuel Sample) |
| TASK 2026* Perform terrain flight | Maintain CONSTANT SCAN OF ASSIGNED SECTOR (Clear ACFT, warn of obstacles, unusual attitudes, changes or threat.) |
| TASK 2034 * Perform masking and unmasking | Scan assigned sector Announce when ACFT side is exposed or unmasked (the crew must clear directly below acft and in flt path ) |
| TASK 2036 * Perform terrain flight deceleration | Maintain Tail clear of all obstacles |
| Task 2081 Operate Night Vision Goggles | Prefight NVG's (IAW NVG -10) Mount and adjust NVG's (IAW NVG -10) Store unit after use (IAW NVG -10& SOP) |
| TASK 2092 * Respond to NVG failure | Identify or describe indications of an impending NVD failure Perform emergency proc. for NVD failure (Announce “Goggle failure, right rear”) |
| Factors affecting object visibility include: | Angular size (the bigger, the better), illumination, contrast, viewing time, retinal adaptation (bright/night), atmospheric clarity. |
| Retinal rivalry is... | Eyes competing with different views (HUD, structural interference) |
| What are three common scanning techniques? | Stop/turn, stop/turn, 10-degree circular overlap, and off-center viewing. |
| The noise level of an average UH-60A is ____ dB. | 108 |
| NVGs have a field of view limited to how many degrees? | 40 |
| Counterweight bags for NVGs should range from a minimum of ____ to ____ ounces. | 12 to 22 |
| Describe how to focus NVGs. | Both objective lenses fully ccw, alternately cover 1 eye at a time, and focus objective lens first, then focus eyepiece lens for sharpest image. |
| At what distance should NVGs be adjusted for sharp images INDOORS? | 20 feet. If a 20 foot distance is not available, use the maximum distance possible. |
| At what distance should NVGs be adjusted for sharp images OUTDOORS? | 100-200 feet. |
Created by:
gerald.hoskins
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