ELECTROMAGNETIC INTERFERENCE (EMI) GASKET REPAIR

TM 1-1520-238-23 Change 2 2-67 2.27. ELECTROMAGNETIC INTERFERENCE (EMI) GASKET REPAIR 2.27.1. Description This task covers: Cuts. Tears and Punctures. Repair. 2.27.2. Initial Setup Tools: Aircraft mechanic’s tool kit (item 376, App H) Light duty laboratory apron (item 27, App H) Chemical protective gloves (item 154, App H) Adjustable air filtering respirator (item 262, App H) Materials/Parts: Gasket 7-311150131-65 (table D-137, App D) Silicone adhesive (item 23, App F) Cloth (item 52, App F) Isopropyl alcohol (item 106, App F) Sealing compound (item 156A, App F) Syringe (item 196, App F) Personnel Required: 67R Attack Helicopter Repairer One person to assist 67R3F Attack Helicopter Repairer/Technical Inspector Equipment Conditions: Ref Condition 1.57 Helicopter safed NOTE ·This task is typical for all EMI gasket installations except gaskets on drive shaft fairings. ·For gasket repair on fairings R410 and R475, go to paragraph 2.27.5. ·For surfaces finished with EMI conductive coating, go to paragraph 2.34. 2.27.3. Cuts CAUTION Do not allow adhesive to come in contact with exposed surfaces of gasket material. Adhesive is nonconductive and will render gasket material nonconductive. NOTE Damage less than 0.125 INCH wide that does not remove any gasket material can be repaired by bonding gasket together at separation. a. Apply sealing compound to damaged area. Use sealing compound (item 156A, App F) and syringe (item 196, App F). GO TO NEXT PAGE