3.
An important first step is a full analysis of the condition of the airplane. You can look for the damage shown in the crew reports. You can also make a check of the damage shown on the incident report and other (insurance) reports. Then you have some indication of the necessary repairs you must make before you can start the recovery operation. You also know the type of procedures you must use in the operation.
4.
After you see the apparent damage, examine the structural condition of the airplane. Try to make an estimate of the damage that extends to the other parts of the airplane.
NOTE: FREQUENTLY, YOU MUST REMOVE MATERIAL (SOIL, TREES, OTHER STRUCTURES) FROM THE AIRPLANE BEFORE YOU CAN SEE THE DAMAGE.
5.
Examine buckles or other skin changes in the wing or fuselage skin panels. Such changes at the structural joints or heavy fittings are indications of internal damage. Look for damaged rivets, bolts, or fasteners (tipped, sheared, or loose). Look for damage on fairings and other parts that are not structural. These changes can show damage to internal structures.
6.
In an incident where you have a folded landing gear, it can be possible to use the gear again. After you lift the airplane, extend the gear if you can. Make sure that the gear structure can hold the airplane weight before you lower the airplane down on the gears.
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AIRPLANE DAMAGE ANALYSIS
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A. If the airplane has gears that are locked in the up position, you can possibly use them again. Then you can tow the airplane on its gears to the repair area.
B. If the gears folded after the landing, you possibly have a damaged side strut assembly (brace) or a damaged drag strut assembly (brace). Frequently, you can hold the gear with a temporary strut assembly (brace). Then you can tow the airplane to the repair area.
C. If there is no gear(s) attached to the airplane, you can possibly install the gear again with some temporary braces. You can install a new gear. Alternatively, you can use a flatbed trailer or equivalent to hold the body or the wing of the airplane. Then you can tow the airplane.
NOTE: ADEQUATE SUPPORT MUST BE PROVIDED TO PREVENT EXCESSIVE LOADING ON AIRPLANE WING AND BODY SKIN PANELS AND STRUCTURE. REFER TO CHAPTER THREE FOR ADDITIONAL INFORMATION ON ALLOWABLE SKIN PRESSURES.
7.
Find the best procedure to lift the airplane. SECTION 3-30 shows the procedures that are possible (jacking, pneumatic bags or mobile cranes).
8.
Check landing gear fuse pins if the airplane moves along rough ground (off the runway), or if there has been excessive loading due to a hard landing or an aborted takeoff. Make sure that all fuse pins are good. Replace the bad fuse pins. There are 10 fuse pins for each main landing gear (See Figure 2-2 and Figure 2-3).
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