Derrick Dumlao

Composite Fabricator- Work Lead

Hawaii Air National Guard

07.2002 - Current

Supervises workers on a day-to-day or project-by-project basis
Arranges for adequate personnel to accomplish LO maintenance on F-22 aircraft
Assign work packages to ensure proper materials, chemicals, equipment and required technical data are needed to complete tasks
Instructs personnel to remove Radar Absorbent Material (RAM) by sanding, scraping or pulling using manual and new powered methods
Assist in fabricating repair parts from RAM, using standard and peculiar cutting tools and adhering them to aircraft surfaces and fasteners using vacuum bags, fixtures, and other pressure inducing processes
Explains the different procedures for applying low observable materials and coatings to aircraft
Repair low observable and metallic structural parts and components to meet requirements for preserving structural integrity
Assess damage impacts to aircraft signatures
Advises on structural and low observable repair, modification, and corrosion protection treatment with respect to original strength, weight, and contour to maintain structural and low observable integrity
Ensures personnel wears required safety equipment while performing LO application and removal processes
Using fall protection when on aircraft
Coordinates with Production to meet aircraft maintenance deadlines
Provides assistance with problems pertaining to cure times, scheduling, tool problems, computer malfunctions, building maintenance, ordering of parts, supplies and hazardous chemicals
Other duties include management of LO support
Including set up of CTKs, building tool kits, organizing shop layout
Training incoming personnel the responsibilities of tool accountability and maintenance
Maintaining, ordering and disposing of hazardous chemicals
Provides adequate supply of bench stock, shop stock and consumables
Assuring accountability and availability in all aspects of the LO support section
Assigned as Unit Deployment Manager to plan, organize, prioritize, coordinate, administers and control the deployment of unit personnel and cargo
Determines extent of damage and/or scope of task and performs finish and treatment removal tasks accordingly
Removes panel, door, and skin fasteners to gain access to aircraft interior and replaces fasteners following maintenance
Cleans aircraft interior and exterior surfaces and gaps to prepare them for filler treatments, fairing materials, and other follow-on maintenance
Mixes multi-part adhesives, sealants, fillers, fairing materials, and organic topcoats
Applies, sands, and skive fillers and fairing materials to Technical Order Data (TOD) specifications for waviness, step condition, and aerodynamic smoothness
Applies organic low observable topcoats and rain erosion materials using spray equipment, brushes and rollers
Uses ambient and accelerated cure processes to cure adhesives, sealants, fillers, fairing materials, and organic topcoats
Uses plan form alignment procedures to determine proper repair angles and dimensions for low observable finishes and treatments
Uses metalworking equipment and tools to form, cut, bend, and fasten replacement or repair parts to damaged structures and components
Fabricates, repairs, and assembles tubing and cable assemblies for aerospace weapon systems and AGE/SE
Maintains and inspects tools and equipment
Performs operator maintenance and service inspections on shop equipment and tools
Ensures lockout and tag out procedures are accomplished prior to performing shop equipment maintenance
Stores, handles, and disposes of hazardous waste and materials according to environmental standards and classifications
Inspects coatings, structures, and components to determine operational status
Interprets inspection findings, and determines corrective actions
Posts entries and maintains maintenance and inspection records
Recommends methods to improve equipment performance and maintenance procedures
Uses automated maintenance systems
Inputs, validates, and analyzes data processed to automated systems
Clears and closes out completed maintenance discrepancies in automated maintenance systems
Evaluates structural damage to aircraft structures or items and applies appropriate repair procedures to include application of adhesive films, prepregs, foam, and tape; and scarfing, layup, vacuum bagging, and accelerated curing techniques
Performs inspection and repair procedures for graphite Bismaleimide resin (BMI), graphite epoxy woven fabric, and unidirectional assemblies to include use of adhesive film, foam, tape, scarfing, lay-up and bagging techniques associated with hot bonders
Selects core materials to complete repairs, makes templates to use as patterns, and assures proper ply orientation and de-bulking
Selects bond form and prepares tools; lays-up; mixes and applies two part adhesives and sealants; installs temperature monitoring devices; cures adhesives; and otherwise completes repairs process/specification to autoclave/curing oven.