Control parts wing covering or similar parts of the aircraft.
Aircraft sheet metal patch repair procedure.
Minimum rivet diameter is equal to the thickness of the thickest sheet to be riveted.
Debur the outer edge of the patch.
Maintain the original strength.
Basic principles of sheet metal repair.
The doubler should be of a.
The diameter will depend on the number of rows of rivets you re planning on installing.
Aircraft sheet metal work prem mahendranathan structural repair.
Basic airframe repair subcourse number al0992 edition a us army aviation logistics school fort eustis virginia 23604 5439 4 credit hours edition date.
Stop drill the crack ends with a no.
Fabricate a doubler of the same material but one size thicker than the part being repaired.
Cut out a circular patch from a sheet of aluminum that is the same thickness and the original aircraft skin.
The primary objective of aircraft repair is to restore damaged parts to their original condition.
September 1994 subcourse overview this subcourse is designed to provide you with a general familiarization of the airframe of today s aircraft and repair procedures.
Place a splice where the member is.
Maintain the original strength.
The repair data may also be used as approved data and the ac chapter page and paragraph listed in block 8 of faa form 337 when.
Sheet metal fabrication is considered a blend of art and science requiring finesse to achieve desirable results.
If the rivet is too long the formed head will be too large or the rivet may bend or.
In spect rivet joints adjacent to damaged structure for partial failure by removing one or more.
Principal requirements in repair of structures inspection of the damage and accurate estimate of the type of repair required important steps in repairing structural damage.
Attach the doubler to the part with clamps and drill holes.
Maximum rivet diameter is three times the thickness of the thickest sheet to be riveted.
The proper length of rivet is an important part of the repair.
The patch plate should have a cross sectional area equal to or greater than that of the original damage.
Sometimes the experience to achieve the desirable results can be costly.
The art of sheet metal repair.
Supported metal skin support the sheet metal on the inside with a bucking bar.
It is directly applicable to the repair being made.
Removal of rivet heads with a cold chisel and hammer is not recommended because skin damage and distorted rivet holes will probably result.
When repair of a damaged part is possible first study the part carefully to fully understand its purpose or function.
