Quantcast AIRCRAFT METALLIC REPAIR

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Custom Search
 
  
back up the material while driving out the pin. If inaccessibility prohibits this, partially remove the rivet head by filing or with a rivet shaver. An alternative would be to file the pin flat, center punch the flat, and carefully drill out the tapered part of the pin forming the lock. 2. Pry the remainder of the locking collar out with a drift pin. 3. Use the proper size drill to drill almost completely through the rivet head. For a 1/8-inch-diameter rivet, use a number 31 drill; for a 5/32, use a number 24; and for a 3/16, use a number 15. 4. Break off the drilled head with a drift pin. 5. Drive out the remainder of the rivet with a pin that has a diameter equal to or slightly less than the rivet diameter. AIRCRAFT METALLIC REPAIR Learning Objective: Recognize the causes of damage to metallic structures and the procedures for their repair. One of the most important jobs you will encounter is the repair of damaged skin and material. All repairs must be of the highest quality and must conform to certain requirements and specifications. You must be familiar with the principle of streamlining, the behavior of various metals in high-velocity air currents, and the torsioned stress encountered during high-speed flying and maneuvering. DAMAGE REPAIRS When any part of the airframe has been damaged, the first step is to clean all grease, dirt, and paint in the vicinity of the damage so the extent of the damage may be determined. The adjacent structure must be inspected to determine what secondary damage may have resulted from the transmission of the load or loads that caused the initial damage. You should thoroughly inspect the adjacent structures for dents, scratches, abrasions, punctures, cracks, loose seams, and distortions. Check all bolted fittings that may have been damaged or loosened by the load that caused the damage to the structure. Causes of Damage Damages to the airframe are many and may vary from those that are classified as negligible to those that are so extensive that an entire member of the airframe must be replaced. The slightest damage could affect the flight characteristics of the aircraft. The most common causes of damage to the airframe are collision, stress, heat, corrosion, foreign objects, fatigue, and combat damage. COLLISION.—This type of damage is often the result of carelessness by maintenance personnel. It varies from minor damage, such as dented or broken areas of skin, to extensive damage, such as torn or crushed structural members and misalignment of the aircraft. You should exercise extreme care in all ground-handling operations. CORROSION.—Damage to airframe components and the structure caused by corrosion will develop into permanent damage or failure if not properly treated. The corrosion control section of the maintenance instructions manual describes the maximum damage limits. These limits should be checked carefully, and if they are exceeded, the component or structure must be repaired or replaced. FATIGUE.— This type of damage is more notice- able as the operating time of the aircraft accumulates. The damage will begin as small cracks, caused by vibration and other loads imposed on skin fittings and load-bearing members, where the fittings are attached. FOREIGN OBJECT.—This damage is caused by hand tools, bolts, rivets, and nuts left adrift during ground operations of the aircraft. Because of jet aircraft design, large volumes of air are required for its efficient operation. During ground operations, the inlet ducts induce a strong suction that picks up objects that are left adrift. Therefore, it is of utmost importance that the area around the aircraft be clean and free of foreign material before ground operations begin. COMBAT.—Damage from enemy gunfire is usually quite extensive and often not repairable. When a projectile strikes sheet metal, it heats the metal in the vicinity of the damage. The metal 13-36



Aviation News
Fleets serving Australia South Pacific to almost double by 2033
Strong economies, tourism and propensity to travel driving growth Share...
airbus.com
10 years in the skies: the A380’s numbers add up
Wherever it flies, the A380 continues to be an impressive...
airbus.com
US Air Force Grants Lockheed Martin $80 Million C-130 Contract
U.S. aircraft C-130E Hercules. Photo: U.S. Air Force photo by...
aviationtoday.com
Mexican Air Force Receives Avionics Upgraded C-130K
Cockpit of a Mexican C-130K. Photo: Rockwell Collins [Avionics Today...
aviationtoday.com
Rockwell Collins Revenue Surpasses Expectations as CEO Turns to IMS Expansion
Rockwell Collins CEO Kelly Ortberg. Photo: Rockwell Collins [Avionics Today 04-24-2015] With...
aviationtoday.com
Airbus Selects Korean Air Aerospace to manufacture Sharklet wingtips for the A330neo Family
• Building on KAL-ASD’s experience with manufacturing Sharklets for the...
airbus.com
Airbus team making vital contributions to America’s Cup champion
New wave in Airbus and ORACLE TEAM USA partnership Share...
airbus.com
Northrop Grumman, US Navy UAS Makes In-Flight Refueling a Reality
The X-47B Unmanned Combat Air System Demonstration aircraft. Photo: Northrop...
aviationtoday.com
Presagis Acquisition Opens Door to Airframe, Avionics Software Collaboration
Presagis avionics design software. Photo: Presagis [Avionics Today 04-23-2015] Presagis,...
aviationtoday.com
Army to Brief DVE Solution Options Next Week
U.S. Army aviation officials will brief their analysis of alternatives...
aviationtoday.com
Exelis Launches Situational Awareness Tool for UAS
Exelis’ new application improves UAS situational awareness. Photo: Exelis [Avionics...
aviationtoday.com
easyJet takes delivery of its 250th Airbus aircraft
Europe's and one of the world's biggest A320 family airlines...
airbus.com
Draken International Offers Upgrades on L-39 Aircraft
[Avionics Today 04-22-2015] Florida-based Maintenance, Repair and Overhaul (MRO) company...
aviationtoday.com
GAO Report Sees Snags in Future F-35 Affordability
[Avionics Today 04-22-2015] The Department of Defense (DOD) and industry...
aviationtoday.com
Airbus, FlightSafety International’s U.S. Partnership to Help Address Future Commercial Pilot Shortage
The Airbus Training Center (ATC) in Miami, Florida has signed...
airbus.com
Airbus Helicopters' H225M Pre-Selected by Poland
Airbus Helicopters and its partner Heli Invest Services have welcomed...
aviationtoday.com
Lockheed Martin Sees Aircraft Production Decline in Q1
Photo: Mark Doliner (flickr) [Avionics Today 04-21-2015] Lockheed Martin reported...
aviationtoday.com
Raytheon Wins FAA Contract to Field Satellite Payload, Improve GPS Accuracy
[Avionics Today 04-21-2015] Raytheon Company has received a $103 million...
aviationtoday.com
Airbus Defense and Space Focuses C212 Support in Mobile, Alabama
Juan Uriarte, head of Airbus Defense and Space U.S. military...
aviationtoday.com
Over 1,500 orders for the versatile A330
Growing market endorsement for most popular widebody aircraft Share this...
airbus.com


Privacy Statement - Copyright Information. - Contact Us

comments powered by Disqus

Integrated Publishing, Inc.
9438 US Hwy 19N #311 Port Richey, FL 34668

Phone For Parts Inquiries: (727) 755-3260
Google +