List the personal characteristics that cause a person to perform an unsafe act, or to overlook or tolerate an unsafe condition.
Inattentiveness, excitability, impatience, and stubbornness
What should be accomplished after any maintenance action?
Police the area and leave it in a clean and orderly condition
List the principles of ORM.
Accept no unnecessary risk; make risk decisions at the appropriate level to establish clear accountability;
accept risk when benefits outweigh the costs; and integrate ORM into AF doctrine and planning at all
What precaution should be taken when wearing metal-framed eyeglasses around an energized
Secure them with a head or neckband
What type of protective clothing do you wear while working around hot exhaust or tailpipes?
Gloves and long-sleeve shirts
What position do you assume to lift an object from a level lower than your waist?
Squat with back straight; use legs to exert force
What are the four major phases of safety training?
(2) Supervisor safety.
(3) Job safety.
Why must supervisors be given formal safety training?
So they have a working knowledge of the fundamentals of accident prevention, and accident prevention
Name the two most frequent methods used in job safety training.
(1) Personal interviews by the supervisor.
(2) Stand-up talks
How can you do your part in preventing fires in all maintenance areas?
Don't allow oily rags to accumulate, obey NO SMOKING signs, never put matches/cigarettes in
wastebaskets, never allow your clothing to become saturated with flammables, and don't store flammables
in open containers
What must be considered to make a sealant effective?
Correct sealant be used for the specific area, and applied correctly
Sealants are packaged and available in what general U/Is?
Two-part can kit, semkit cartridge, and premixed and frozen
What is the sealant application life?
The length of time a mixed sealing compound remains usable at 75°F and 50 percent relative humidity
What is the purpose of solvents?
Dissolve oily and greasy soils so they can be easily wiped away or absorbed on a cloth
List three sources of antenna radiation
(1) High-frequency radio transmitters.
(3) Electronic countermeasure devices
What are the effects of antenna radiation on the human body and vital organs?
May cause burns beneath the skin, cataracts in the eyes, and internal organ damage as a result of heat
produced as energy is absorbed into tissues.
From what direction do you approach an aircraft with overheated brakes?
From the aircraft's nose or tail direction—never in line with the axles
List the major danger areas around an operating jet engine.
Engine intake, exhaust, and turbine plane of rotation
What's normally considered a safe distance from an operating jet engine intake?
25 feet to the front and sides
Why is the plane of rotation of the engine turbine wheel considered dangerous?
If the turbine wheel disintegrates while you're in the plane of rotation, there's a good chance you'll have
serious or fatal injuries
In addition to earplugs, what protective device do you wear when working in high-intensity noise
Headset or ear defenders
What references provide guidance for servicing operations?
AFOSHSTD 91-series, TO 00-25-172, and specific aircraft TOs
During fuel servicing, what are three things of importance to keep in mind?
(1) Ensure you use the right grade fuel.
(2) Protect yourself from health hazards.
(3) Prevent fires and explosions
What can result from prolonged fuel saturation on your skin?
Skin can become irritated and it could progress to a severe rash
Why is it important to inspect fire extinguisher seals?
To ensure the extinguisher wasn't previously discharged
What's the minimum safe distance for operating ground power equipment during oxygen
During LOX servicing, what should you do if a control valve becomes clogged with ice?
Thaw it with water
What device is used to help prevent overpressurization of an aircraft component during
Why do many job guides list nitrogen as the preferred choice for servicing compressed gas
Because of nitrogen's inert qualities
When servicing aircraft hydraulic systems, what three measures should you take to prevent
contaminating the aircraft systems?
(1) When servicing with cans or drums ensure cleanliness and product integrity are maintained.
(2) Keep products clearly identified and segregated.
(3) Carefully read all labels before dispensing
What references contain information about ground handling?
Specific aircraft TO, AFI 11-218, TO 00-25-172, and AFOSHSTD 91-100
Where do most aircraft-specific TOs list safe for maintenance precautions?
In the first couple steps of the task
Preparations for aircraft launch include what?
Checking the aircraft forms and obtaining all required AGE
After launch, what tasks are accomplished by the ground controller after the aircraft taxis?
Police the parking area and prepare the AGE for pickup
During recovery, wing walkers are necessary under what conditions?
When taxiing thru congested areas
Why should an aircraft be moved in a straight line for five feet after a turn?
To relieve the loads on the main landing gear
As a general rule, where should you be positioned for marshalling your aircraft?
In front of the aircraft and to the left of the pilot
When is a safety observer positioned by a parked aircraft?
When any portion of the aircraft extends into an active taxiway
When mooring an aircraft, how do you position the aircraft in relation to the wind?
Head the aircraft into prevailing winds
What are the usual causes of towing accidents?
Inexperienced personnel and failure to follow correct towing procedures
During towing, why do you start and stop all movements slowly?
Sudden starts and stops may break rivets, bolts, tubing and aircraft structural members
What should be done before towing an aircraft across an active taxiway?
Get clearance from the control tower
What are some of the reasons for jacking an aircraft?
To weigh the aircraft, change a landing gear or gear component, repair a landing gear or gear component,
perform a retraction check, or change a tire or brake
What jacking accessory prevents damage to the aircraft structure and is positioned under
reinforced areas of the aircraft?
If the aircraft TO doesn't establish it, what's the maximum wind velocity for a jacking operation?
What is the damaging action of sand and dust?
Their abrasive qualities damage actuators, valves, and other moving parts on the aircraft
How much weight is the F-2 lifting bag designed to lift and how high?
24,000 pounds; six feet maximum
To overcome the instability of lifting bags, what should you add?
Additional shoring to other points of the aircraft as it is raised
What is a major limitation in using the crane lifting method?
Whether or not the crane can actually get to the crash site
What makes up a TO library?
One or more current TOs with all changes, revisions, and supplements maintained on a continuing basis, or
a special-purpose library that might contain noncurrent TOs.
Where would you find a transient aircraft library?
On bases where it's common to service or perform organizational- or intermediate-level maintenance on
aircraft not normally assigned to the base.
What are the functions of groups four through six of a TO number?
They further subdivide the TO into system and sub-systems as applicable.
What's the purpose of the LOAP?
Provides a listing of all TOs that apply to a specific weapon or system.
What is the JCALS system?
An automated information system that provides the hardware and software infrastructure for managing
technical manuals throughout the DOD.
What are the four major types of TOs?
(1) Technical manuals.
(2) Abbreviated TOs.
Describe the types of information found in technical manuals
Instructions pertaining to operation, service, maintenance, inspection of complex weapon systems, and
overhaul of component parts.
What schematic diagrams are included in section II of the TS manual?
Schematics of each related system for that TO
What are some examples of abbreviated CLs?
Aircraft towing, aircraft jacking, oxygen servicing, refuel and defuel, and engine run
What are the five types of TCTOs covered in the text?
(1) Immediate action.
(2) Urgent action.
(3) Routine action.
What type of TCTO is issued for a potentially hazardous condition that could result in injury to
personnel or damage to property?
What are the three classifications of TO improvement reports?
When are emergency TO improvement reports submitted?
When fatality, serious injury, extensive damage, or destruction of equipment or property results, or if it
affects the ability to achieve or maintain an operational posture
What type of publication is used to direct action and ensure compliance across the Air Force?
What is a nondirective publication that can be permanent, and its purpose is to explain or instruct.
Where can you find a listing of current AF manuals, pamphlets, instructions, and VAs on-line?
Air Force's E-publishing website
What is the basic function of maintenance?
To ensure assigned aircraft and equipment are safe, serviceable, and properly configured to meet mission needs
What does the degree of maintenance capability depend on?
Mission requirements, economics of repair, transportation limitations, component reliability, workload
agreements, facility requirements, frequency of tasks, and special training required
What are the two basic types of maintenance performed at unit level?
What happens to personnel who fail to maintain proper maintenance discipline?
They are held accountable
What happens to personnel who fail to maintain proper maintenance discipline?
Being held liable and answering for all maintenance you perform on Government equipment
Describe a dropped object as it relates to aircraft operations.
Any aircraft part, component, surface, or other item lost during aircrew operations, unless intentionally
jettisoned, from engine start to engine shutdown.
Why should AF personnel be so concerned about FOD?
The damage it causes translates into the loss of resources, money, or, in a worse case scenario, someone's
What can happen when loose objects are blown or washed onto the runway?
An aircraft engine can ingest them into its intake
What should you do when an item is lost on an aircraft in an area that might cause damage, and can't be located?
Immediately place a red "X" symbol in the AFTO Form 781A and an entry describing the situation; then,
you must conduct a search for the lost item
What should you wear when you are required to physically enter an intake or exhaust?
To whom should you report damaged paving in aircraft parking areas and taxiways for immediate repair?
Base airfield manager
In which command are personnel responsible for the overall material management of AF systems and equipment?
What does ACM provide unit managers the capability to determine?
Actual versus approved configuration of an aircraft
Why are preventive maintenance schedules entered in the IMDS?
To track and report completion, deviation, or rescheduling actions
What is the purpose of the initial evaluation?
To determine, specifically, what tasks the individual is qualified to do or cannot do
What is your responsibility in cases where a newcomer is qualified on a task required for the new work center?
Re-verify their qualifications to ensure they are still proficient to perform that task.
Where should the AF Form 623 be maintained?
The lowest level of supervision having storage facilities to enable the supervisor, trainer, trainee and any
others in the chain of command immediate access, to include the UTM, upon request.
What is a CFETP?
A comprehensive education and training document that identifies life-cycle education and training
requirements, training support resources, and minimum core task requirements for an entire AFS.
What type of information is found in Part I of the CFETP?
Information necessary for overall management of the specialty.
In what part and section of the CFETP do you find information that identifies the duties, tasks, and technical references to support training?
Part II, section A.
What are the basic parts of a maintenance stand?
A base assembly, upper structure assembly, platform assembly, and, on most stands, hydraulic system.
What are two uses of the C-1 stand?
(2) As an extension for the B-1 or B-2 stand.
How is the height of the platform adjusted on the B-1 maintenance stand?
By the extension and retraction of a hydraulic cylinder assembly.
Which maintenance stand is best suited for performing maintenance and inspections on the vertical stabilizer and rudder?
What should you ensure prior to standing on the ladder of a scissors-type maintenance stand?
The safety pins are installed
What should you do with the wheels of a B-4 or B-5 maintenance stand before towing?
Lock the rear casters in the towing position to prevent swiveling
Describe what the two hand pumps are designed to do in a hydromechanical jack?
(1) The larger pump is used to raise the plunger at a higher speed to meet the load.
(2) The smaller pump allows for greater ease of lift with a full load engaged.
What procedures are tripod jacks generally used for?
Weighing the aircraft; changing a landing gear or gear component; repairing a landing gear or gear
component; or performing a landing gear retraction check
What are some of the uses of the axle jack?
A tire change, brake change, or wheel/bearing inspection and lubrication.
What are the properties of LOX?
Pale blue, water-like substance that flows readily; it boils at -297°F and expands to 860 times its original
volume when warmed to a gaseous state
On the TMU-27/M LOX mobile storage tank, what position should the pressure buildup valve be in?
Closed, except when building up tank pressure
Why should LOX never be confined in any completely airtight piping or container?
Because LOX expands 860 times its original volume and the pressure buildup when the liquid expands to
gas will rupture the container
What form is used to track all aircraft oxygen systems serviced with a specific LOX cart?
AFTO Form 134
Why is nitrogen the preferred gas for servicing aircraft systems?
Because it is a nonpoisonous inert gas that doesn't form flammable or explosive mixtures with air or
oxygen, nor does it support combustion; it can be safely stored at high pressures without any serious
problems during handling
What three components make up the oil servicing cart?
(1) Servicing tank.
(2) Hand pump.
(3) Return tank
On the hydraulic filler and pressurization unit, what prevents over-pressurizing of the lowpressure pumping system when the high-pressure pump is used?
Opening the bypass valve
How is the pressure relieved in the pressure manifold of the hydraulic servicing cart?
A check valve
Other than transporting heavy loads, what's an additional use for the Model 3000 transportation trailer?
Hold engines while inspections are performed.
What can happen to an engine that has not been properly supported?
It could twist or bend, damaging the engine or its sub parts
What's the primary function of powered AGE?
Provide an auxiliary means of external power without operating the aircraft engines, APU (if equipped), or
internal systems to support maintenance activities
What happens to the waste product when the SGNSC separates the nitrogen from the air?
It becomes enriched with oxygen (about 33% oxygen).
What is the purpose of the MC-1A air compressor?
Provide high- or low-pressure, clean, dry air for servicing aircraft pneumatic systems, hydraulic
accumulators, oleo struts, and tires.
How is heat increased or decreased on the H-1 heater?
By allowing more or less fuel to enter the burner section
How is heating accomplished on the NGH?
By a 60-Hz alternator that powers a separate oil burner and combustion blower.
What source of power is used to start the A/M32A-95 compressor?
A nickel-cadmium battery or two 12-volt gel pack batteries
How much air is the A/M32A-60 capable of producing?
Approximately 120 - 150 pounds of air per minute at 50 psi
How is power supplied to the MK-3A-3?
By a 93-hp, 440-volt, 3-phase, 60-cycle, 1,760-RPM electric motor
List three kinds of nonself-locking nuts.
Any three of the following:
List two uses for plain washers.
Any two of the following:
(1) Provide a smooth bearing surface.
(2) Act as shims in obtaining the correct relationship between threads of the bolt and the nut.
(3) Adjust the portion of castellated nuts with respect to the drilled cotter pin holes.
(4) Under lockwashers to prevent damage to surfaces of soft material
What's the purpose of a pressure seal?
To prevent the loss of pressure from pressurized areas through which cables pass
What units are used to transmit motion about an axis and to change the direction of force of a cable or push-pull rod?
Quadrants and bellcranks
Where are torque tubes used in flight control systems?
Where they're needed to transmit a twisting force
How can aluminum alloy and stainless steel tubing be easily distinguished?
By their different metallic luster or aluminum alloy tubing may be stamped with the actual alloy
Why is stainless steel tubing preferred on external brake lines and other exposed system lines?
To prevent damage caused by flying gravel and stones, and ground-handling accidents.
Describe the color-code tape used in identifying hydraulic lines.
Blue band, a yellow band, and a white band overprinted with a row of black-bordered circles
A system line is 38″ long and passes through a bulkhead. The bulkhead divides the line so 25″ is on one side. How many bands of tape should the line have?
Three; one on the 13″ section and two on the 25″ section.
Before you install a tubing assembly, you should inspect it for what conditions?
Obstructions, dents, scratches, and damage to the flared end.
What can result from over-tightening a tubing nut?
Severe damage to the tubing flare or damage to the sleeve or nut of the fitting.
What information can be obtained from the markings on flexible hose?
The manufacturer's code number or symbol marking, date of manufacture, size, and specification
How should hose connections be made to an engine or engine-mounted accessories?
Install the hose so 1½″ of slack or an adequate bend is provided between the last point of support and the
attachment to the engine or accessory
Using the double-twist method, how many closely spaced bolts can be safetied in a series?
No more than you can secure with a 24″ length of wire.
When is 0.032″ safety cable used to safety parts?
When parts have a nominal hole diameter of 0.075″ or smaller
What parts of a Cannon plug ensure connector halves aren't mismated?
A key and keyway arrangement in the barrel of the plug and receptacle
Why should you not attempt to remove a Cannon plug's insert from the shell?
It is permanently bonded and can't be removed without destroying it
What is the major advantage of the Fluke multimeter?
The ability to take readings without having to look at the display at the same time as you are looking at the
What are the different modes of operation of the Fluke meter?
Range, relative, minimum/maximum, and hold
How is the bar graph helpful to the troubleshooter?
Checks faulty relays and capacitor operation; it also gives accurate resistance measurements
What should be done if the digital meter goes from OL to 0 when performing a continuity check?
Continue using it (this is the normal indication).
How do indicating-type torque wrenches display the applied torque?
By a pointer that moves over an indicating scale
What type of torque wrench automatically releases when you apply a predetermined amount of torque?
How much free travel does the breakaway torque wrench allow when the preset torque level is reached?
Approximately 5° - 10°.
What may happen if you over-tighten a component greater than the value set on a torque wrench?
It may cause internal damage to the torque wrench
What is the working range of a breakaway or indicating type torque wrench?
Not lower than 20 percent and not greater than the rated capacity of the torque wrench
When torquing a bolt, what should you set the torque value to?
The upper limit of the specific torque value allowed by the TO.
When you're using a torque wrench to tighten a series of nuts, do you tighten each nut to the specified torque before starting to torque the other nuts? Explain.
No; gradually tighten each until they all meet the specified torque and tighten the nuts opposite of each
other in sequence
Before storing a torque wrench, to what setting should you set the grip? Why?
Lowest; this removes tension from the spring in the handle and preserves the accuracy of the torque
Torque wrenches should have some kind of label (paper, tape, or other) on the handle. What information do you determine from this label before using the torque wrench?
The calibration date
What do you do if you discover a torque wrench is overdue calibration?
Don't use it; turn it in for calibration
Whose responsibility is supply discipline?
All military and civilian employees, regardless of grade or position.
Why is it important to promptly process reparable items?
The reparable item is as important as a serviceable item, since the reparable item may be the only part
List some examples of bench stock items.
Nuts, bolts, cotter keys, washers, resistors, capacitors, light bulbs, sealants, and batteries
How should operating stock be identified?
Clearly identify items as "Operating Stock" and label them with their noun, NSN or part number (if
applicable), U/I, and shelf-life, if applicable
What is the basic purpose of a QRL?
To provide maintenance personnel with a speedy identification and communication capability for placing a
demand on a supply
What is a critical item?
One for which valid or forecasted requirements exceed present or anticipated resources
When does base supply order a replacement DIFM item?
When it is determined the unserviceable item cannot be repaired on base, or the item is condemned
What documents are used to control a DIFM item through the repair cycle?
DD Form 1348-1A and AFTO Form 350, Part II
What are the two categories of supply-type items that require turn-in?
Which condition tags and labels are easily identified by their yellow margins and letters?
DD Forms 1574 and 1574-1
What's the purpose of deficiency reporting?
Establish a system to identify, report, and resolve deficiencies
Which DR category, if uncorrected, would cause death, severe injury, or severe occupational illness?
In what TO can you find the details for recording specific entries of AFTO 781-series forms?
What AFTO 781-series form is used to record discrepancies discovered by aircrew or aintenance personnel?
What AFTO 781-series form is used to record delayed discrepancies and calendar inspection nformation?
What AFTO 781-series form is a continuation of the calendar and hourly inspection item chedule shown on AFTO Form 781K?
What AFTO 781-series form contains basic information to aid in making entries on the 781A and 81K forms?
What does the minimum signature for maintenance documents consist of?
Written first name initial, last name, and employee number or equivalent/FAA certification number.
Normally, what type of writing instrument do you use to make entries on AFTO 781-series orms?
Black pencil or ballpoint pen
What's the purpose of using red symbols on maintenance documents?
To make important warning signals stand out clearly.
What symbol do you enter on the appropriate AFTO 781-series form to indicate the aircraft can't e flown and it is unfit for flight?
What symbol do you enter when work stoppage prevents the completion of an in-progress nspection?
What is indicated when a black last name initial is entered over a symbol in the SYM block?
The individual whose name appears in the signature block has accomplished the required maintenance, or
has inspected the equipment, work accomplished, or system specified, and has found its condition
What entries in the forms don't require symbols?
Informational notes that do not affect the safety or reliability of the aircraft
Wat's the purpose of the planned inspection and maintenance concept?
Provides a method of performing required inspections and repairs on a scheduled and controlled basis
Name the two overall inspection concepts used at base level to inspect USAF fighter aircraft.
Describe and briefly explain the use of the two primary aids of the planned inspection and intenance concept.
(1) Inspection WCs outline minimum inspection requirements.
(2) SCs depict a basic planned work schedule and serve as a guide in preparing the actual work schedules
If an aircraft is out of commission for more than 30 consecutive days, what inspection is required efore the aircraft is returned to operational status?
Give three occasions when a special inspection may be required.
(1) After a specified number of flying hours.
(2) Following the lapse of a specific calendar time.
(3) After the occurrence of a specific or unusual condition
When is an acceptance inspection performed?
When an aircraft is newly assigned to an organization, and on all aircraft and engines received from depot
Under what two conditions must time replacement items be complied with?
(1) After accrual of a specific interval of time.
(2) Following the occurrence of a specific or unusual condition
Wy do you make periodic checks of the accountable equipment on aircraft?
To maintain control and serviceability of equipment
What form is used to indicate the physical presence or absence of aircraft -21 equipment?
AF IMT 2691
When aircraft -21 equipment is transferred with an aircraft, which form is used as a receipt ocument for the organization receiving the equipment?
AF IMT 2692
What is corrosion?
The electrochemical deterioration of a metal due to its chemical reaction with the surrounding environment.
What does the frequency of aircraft cleaning depend on?
The type of aircraft and the environmental conditions to which the aircraft is exposed
Under what conditions is daily cleaning required on exposed, unpainted surfaces (e.g., landing
gear struts and actuating rods of hydraulic cylinders)?
When deployed within three miles of salt water or when flown below 3,000 feet over salt water
What factors should be considered when selecting a cleaner?
Type and amount of soil to be removed, material size and surface condition of the part, and degree of
What is the maximum time a solvent (MIL-PRF-680, Type II) is allowed to remain on painted surfaces?
What is the preferred type of cleaner for cleaning the interior cockpit, floor, and dck area?
MIL-PRF-85570, Type II
How do you clean optical glass?
Spray the cleaner onto a flannel cloth, carefully wipe the lens surface, and then wipe dry
What solution is used to treat areas affected with electrolyte from a nickel-cadmium battery?
What cleaning agent is used to clean the exterior of the aircraft (painted) for light and moderate oils?
MIL-PRF-85570, Type I or Type II, or MIL-PRF-97837, Type II or IV
What procedure do you use to clean landing gear exposed pistons?
Clean with a clean cloth dampened with hydraulic fluid; wipe away from seals.
When outside temperatures are below 40°F, where should the aircraft be cleaned?
In an indoor heated wash rack
What should you do if cleaner is splashed in your eyes?
Rinse your eyes thoroughly with fresh water for 15 minutes and report to the nearest medical facility
What are the purposes of lubrication?
To prevent wear between moving parts, fill air spaces, displace water, and provide a barrier against
What type of information is found on a lubrication chart?
Items to be lubricated, type of lubricant, and method of application