2a673 (Edit Code 03) Volume 2, Aircrew Egress Systems Craftsman

Diagonal cutting pliers should always be used to remove the safety wire from a detonation transfer assembly (DTA). These pliers have a sharp cutting edge that allows for easy and precise cutting of the wire. Slip-joint pliers, flat-nosed pliers, and lineman's side cutting pliers are not specifically designed for cutting wire and may not provide the same level of precision and ease of use as diagonal cutting pliers.

In the fault isolation (FI) manual for troubleshooting an F-16, the fault isolation tree can be found in Section IV, Fault Isolation Information. This section provides detailed information on how to isolate and identify faults in the aircraft. The fault isolation tree is a visual representation of the troubleshooting process, helping technicians to systematically narrow down the possible causes of a problem. By following the steps in the fault isolation tree, technicians can efficiently diagnose and fix issues with the F-16.

The correct answer is to perform a 100 percent visual inspection. Before operational use or during assembly and buildup involving SMDCs, it is important to visually inspect all components to ensure they are in good condition and free from any visible wear and tear. This step helps to identify any potential issues or damage that may affect the performance or safety of the SMDCs. By conducting a thorough visual inspection, any problems can be addressed and resolved before proceeding with further operations or assembly.

Rotating the fittings only, not the lines, prevents damage to SMDC (Secondary Multiplex Data Concentrator) lines when removing the F-15 #3 pyrotechnic module on an aircraft. This is because rotating the fittings allows for a controlled and secure disconnection of the module without putting strain or stress on the lines themselves. By rotating only the fittings, the lines can be safely disconnected and removed without causing any damage or compromising the integrity of the SMDC lines.

The correct sequence of operation for two-seat F-15Es during an AFT INITIATE ejection is to first jettison the canopy, then eject the rear seat, and finally eject the front seat. This order ensures that the rear seat occupant can safely exit the aircraft before the front seat occupant.

Technician C's job in a dual-seat F-16 canopy removal is to assist in the removal of the canopy and operate the hoist. This means that Technician C is responsible for providing support during the removal process and also operating the hoist, which is used to lift and lower the canopy. The other options are not correct because they do not encompass both assisting in the removal and operating the hoist.

When performing the operational checkout of the F-16 seat height adjustment switch, if the switch is positioned to the UP position and released, the seat should start moving upwards and then stop at the desired height. After that, the switch should automatically return to the center position. This ensures that the seat can be adjusted to the desired height and that the switch functions properly by returning to its original position after use.

When inspecting SMDCs, a thickness feeler gauge is used to compare the size and depth of depressions. This tool is specifically designed to measure the thickness or depth of small gaps or depressions. It consists of a set of individual blades of varying thicknesses that can be inserted into the depression to determine its size. The other options, such as magnifiers and a steel rule, are not suitable for this purpose as they do not provide accurate measurements of the size and depth of depressions.

To gain access to the F-15 #3 pyrotechnic module when removing it on the aircraft, the seat actuator/rocket catapult must be repositioned. This implies that the seat actuator/rocket catapult is obstructing the access to the pyrotechnic module and needs to be moved in order to remove it.

When installing the F-15 #3 pyrotechnic module, it is important to remove any foreign objects from the explosive device port to ensure proper functioning and safety. The most effective method mentioned in the answer choices is to turn the component upside down and shake it. This action will allow any foreign object to fall out of the port due to gravity, minimizing the risk of the object interfering with the module's operation.

Using two wrenches while tightening connectors is a good way to prevent damage to SMDC lines when installing the F-15 #3 pyrotechnic module on the aircraft. This technique ensures that equal force is applied to both sides of the connector, preventing any twisting or torque that could damage the SMDC lines. By using two wrenches, the risk of over-tightening or under-tightening the connectors is minimized, ensuring a secure and damage-free installation.

If the F-22 oxygen system pressure gauge reads below limits, the best course of action is to completely purge and refill the cylinder. This will ensure that the cylinder is filled with the proper amount of oxygen and will bring the pressure gauge back within the acceptable limits.

If the canopy manual drive hand crank does not engage and operate the manual drive assembly, it suggests that there is a problem with the assembly itself. Since the manual drive assembly is responsible for operating the canopy system, it is likely that replacing it will resolve the issue. The other options, such as the canopy actuator, unlock handle, and unlock warning switch, may be related to the canopy system but do not directly address the problem of the manual drive not engaging. Therefore, the only logical course of action is to replace the canopy manual drive assembly.

The Emergency Escape Sequencing System (EESS) is the component of the F-22 escape system that provides sequenced firing signals for the electronic explosive devices (EED). It is responsible for coordinating the activation of the various explosive devices involved in the escape process, ensuring that they are fired in the correct sequence and at the appropriate times. This system plays a crucial role in the safe ejection of the pilot from the aircraft during an emergency situation.

During an F-22 ejection, Mode 1 is selected when the speed is less than 250 knots and the altitude is less than 15,000 feet.

When the ejection control safety handle is placed in the EJECTION CONTROLS LOCKED position, the SEAT NOT ARMED light should come on. This indicates that the ejection seat is not armed and is in a safe position. The other options, such as the CANOPY warning light coming on or going out, are not related to the position of the ejection control safety handle and are therefore incorrect.

The F-16 emergency escape sequencing system uses DTA, which stands for Dual Tandem Actuation. This type of energy transfer line allows for a reliable and efficient transfer of energy in emergency situations. It is designed to activate various systems and mechanisms that are necessary for the safe ejection of the pilot from the aircraft. The DTA system ensures that the energy is transferred accurately and quickly, enabling a timely response during emergencies.

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The correct answer is "Canopy actuator release bolt (CARB)". The CARB is the explosive component that releases the canopy from the canopy actuator. It is designed to be easily jettisoned in emergency situations, allowing the canopy to be quickly and safely removed.

The correct answer is Receptor (R) or shock tube receptor (STR) types. These types of DTA lines contain a primary explosive that can be detonated by impact, shock, abrasion, or excessive heat. This means that any force or heat applied to these types of DTA lines can cause the primary explosive to detonate.

The concern that sets removing the f-15 #3 pyrotechnic module apart from other egress jobs is the increased potential for cockpit foreign object debris (FOD) from pyrotechnic hardware. This means that there is a higher risk of debris or objects getting into the cockpit during the removal process, which can be dangerous and cause damage to the aircraft or harm to the personnel working on it.

The F-22's rocket motor fires during canopy jettison through impulses sent through the Emergency Escape Sequencing System (EESS) wire harness. This means that the EESS wire harness is responsible for transmitting the necessary electrical impulses to initiate the firing of the rocket motor. It is through this system that the necessary signals are sent to activate the rocket motor and ensure a successful canopy jettison process.

The correct answer is 0.040 to 0.080 inch. This measurement refers to the distance between the canopy lock handle's cam and lock lug. This measurement is important in order to ensure that the canopy is securely locked in place during flight. If the measurement is too small, the canopy may not be properly locked, posing a safety risk. On the other hand, if the measurement is too large, it may be difficult to properly engage or disengage the canopy lock. Therefore, the ideal measurement range is between 0.040 to 0.080 inch.

The F-16 canopy remover rockets are initiated by the detonation transfer assembly (DTA). The DTA is responsible for transferring the detonation signal from the rocket's initiator to the main charge. This assembly ensures that the rockets are activated at the right time and with the necessary force to remove the canopy. It acts as a crucial component in the rocket's ignition system, allowing for a controlled and precise initiation of the rockets.

The M53 initiator is specifically designed to provide an automatic sequence to eject the forward seat during a dual seat F-16 ejection when the ejection mode selector valve is set in aft mode and the aft seat ejection handle is pulled.

The correct answer is 50-70. This range indicates the recommended torque in inch-pounds for tightening DTA nuts. Torque is a measure of the force applied to rotate an object, in this case, the nuts. The range of 50-70 inch-pounds ensures that the nuts are securely tightened without being over-tightened, which could potentially damage the nuts or the equipment they are being used on.

Before removing an F-15 #3 pyrotechnic module, the first thing that must be removed is the ACES II ejection seat.

The correct answer is 27. When installing a dual-seat F-16 canopy, the protractor reflects the canopy angle with the longeron at approximately 27 degrees. This means that when lowering the canopy, you should stop before installing the keeper at this angle to ensure proper installation.

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The correct answer is NORM, SOLO, and AFT INITIATE. These are the three modes of operation on the F-15E emergency escape sequencing system. The NORM mode is the normal mode of operation, the SOLO mode is used when only one seat needs to be ejected, and the AFT INITIATE mode is used to initiate ejection from the rear seat.

The correct answer is LOCKED, DN, HOLD, and UP. This is because these four positions represent the different states of the F-15 canopy control handles. LOCKED refers to when the canopy is securely closed and locked in place. DN stands for down, indicating that the canopy is being lowered. HOLD means that the canopy is being held in a partially open position. UP signifies that the canopy is fully open and raised.

There are four canopy jettison initiators installed on a dual-seat F-16. This means that there are four mechanisms or devices that can be used to initiate the jettisoning or removal of the canopy on the aircraft.

The given scenario suggests that the issue lies with the switches. Even though the canopy lock handle is verified down, the canopy warning light stays on. However, when the unlock warning switch and both hook warning switches are manually pressed simultaneously, the light goes out. This indicates that there might be a problem with the switches, causing the light to stay on incorrectly. Rigging the switches would be the first step to correct this issue.

If a cut is found on the rubber seal at the end of a SMDC booster, the appropriate action to take would be to replace the rubber seal. This is because a cut in the rubber seal can compromise its integrity and effectiveness in sealing the booster. By replacing the rubber seal, the functionality and safety of the SMDC booster can be ensured.

The correct answer is NORM, SOLO, and AFT. This means that the F-16 dual seat aircraft has three modes of ejection available: NORM (normal mode) which is used when both seats need to be ejected, SOLO which is used when only the front seat needs to be ejected, and AFT which is used when only the rear seat needs to be ejected. These modes provide flexibility and safety in different emergency situations.

The ejection sequence on an F-22 is initiated by electrical voltage produced from the thermal battery initiators. This voltage is responsible for activating the necessary mechanisms and systems for a successful ejection.

The F-15E canopy is described as a clamshell type because it is made of formed, transparent plastic that is mounted in a metal frame. This design allows for easy jettisoning of the canopy from the aircraft frame when needed.

The M53 initiators are responsible for maintaining the pressure of the gas in the F-16 escape system at an acceptably high level. These initiators play a crucial role in ensuring the effectiveness and efficiency of the escape system by regulating the gas pressure.

If the wind speed exceeds 20 knots, F-16 canopy maintenance should be ceased. This is because high wind speeds can make it difficult and unsafe to work on the canopy. Strong winds can cause the canopy to move or slam shut unexpectedly, posing a risk to the maintenance personnel. Therefore, it is important to stop maintenance activities when wind speeds reach or exceed 20 knots to ensure the safety of the personnel and prevent any potential damage to the canopy.

The F-15E emergency escape sequencing system uses SMDC (Solid Motor Disconnect Circuit) energy transfer lines. SMDC is a type of circuit that is designed to disconnect the solid rocket motor from the aircraft during an emergency escape sequence. It ensures a safe separation of the motor from the aircraft by transferring the necessary energy to activate the separation mechanism. This system is crucial for the safety of the pilot in case of emergencies.

The correct answer is M53 initiators through the sequence valves. This means that during dual-seat F-16 canopy jettison during seat ejection, the M53 initiators are fired by hot gas from the sequence valves.

During a Mode 2 ejection on the F-22, the drogue parachute deploys at the same time the sequence start switch is detected. This means that as soon as the sequence start switch is activated, the drogue parachute is immediately deployed.

The correct answer is that no more than one broken strand per 12-inch section or more than three broken strands total are allowable on wire braid outer coverings of flexible DTA lines. This means that if there is any damage to the wire braid, it should not exceed one broken strand per 12-inch section, and the total number of broken strands should not exceed three. This ensures that the wire braid remains intact and provides sufficient protection for the flexible DTA lines.

Adjacent dents on a SMDC booster tip should be allowed to have at least 135 degrees of arc between them. This is because the question is asking for the minimum angle between the dents, and 135 degrees is the option that provides the largest angle. A larger angle between the dents would allow for better stability and structural integrity of the booster tip.

To check the DTA minimum tip length, the -25 inspection gauge should be positioned across the lower surfaces of the inspection gauge containing the DTA. This means that the -25 inspection gauge should be placed underneath the DTA, allowing for measurement of the tip length. This method ensures accurate measurement and assessment of the DTA's minimum tip length.

The total surface area of dents on a SMDC booster tip cannot exceed 10% of the outside surface area. This means that the dents should not cover more than 10% of the total surface area of the booster tip.

The correct answer is pulling the canopy jettison handle to extend the cable for 8 feet then jerking the handle. This is because the F-15E external canopy jettison initiator is fired by pulling the canopy jettison handle to extend the cable for a certain distance, in this case, 8 feet, and then jerking the handle. This action activates the mechanism that breaks the frangible panel and allows the canopy to be jettisoned.

The F-16's emergency canopy release line (ECRL) is located on each side of the cockpit. This means that there is a release line on both the left and right sides of the cockpit, allowing the pilot to quickly and easily release the canopy in case of an emergency.

During the F-16 canopy removal, it is important to check that the upper and lower roller bearings have freedom of rotation. This is because the roller bearings are responsible for allowing smooth movement of the canopy along the hinge track. If the roller bearings do not have freedom of rotation, it could lead to binding or difficulty in opening and closing the canopy. Therefore, ensuring that the roller bearings can rotate freely is crucial for a successful canopy removal process.

When performing a dual-seat F-16 canopy removal, the correct procedure is to fully open the canopy prior to installing the two canopy maintenance supports. This is done using the external canopy switch. The external canopy switch allows for easy and convenient control of the canopy, ensuring that it is fully open before proceeding with the installation of the maintenance supports. The internal canopy switch, internal manual drive handcrank, and external manual drive receptacle are not suitable for this task as they do not provide the necessary control and functionality required for fully opening the canopy.