Mitsubishi MU-2B Series Structural Repair Manual YET 72035A PDF
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Structural repair reference for Mitsubishi MU-2B series airplanes, covering airframe inspection, damage classification, wing, empennage, fuselage and nacelle structure, standard and typical repairs, corrosion control, sealing, fasteners and gear-up landing damage. Includes model and serial-number applicability across short- and long-body MU-2B variants.
Description
Mitsubishi MU-2B Series Structural Repair Manual YET 72035A PDF
The Mitsubishi MU-2B Series Structural Repair Manual YET 72035A PDF is a detailed structural repair reference for the MU-2B family, with applicability identified by model and serial number throughout the manual. It combines general airframe repair practices with component-specific structural information for the wing, empennage, fuselage and nacelle, then adds typical repair applications, gear-up landing damage guidance and a numerical index. The manual is built around drawings, station diagrams, material data, allowable damage information, repair examples and fastener requirements so structural work can be planned against the aircraft configuration and the location of the damage.
File Details
- Manual type: Structural Repair Manual
- Brand: Mitsubishi Heavy Industries, Ltd.
- Model: MU-2B series
- Document number: YET 72035A
- Original issue: 1 January 1972
- Reissue date: 1 January 1997
- Revision date: 25 January 2002
- Language: English
- Pages: 1006
- File format: PDF
Model and Serial Number Applicability
This MU-2B structural repair manual separates the fleet into short-body and long-body series and gives corresponding ship numbers. Covered models include MU-2B, MU-2B-10, MU-2B-15, MU-2B-20, MU-2B-25, MU-2B-26, MU-2B-26A, MU-2B-40, MU-2B-30, MU-2B-35, MU-2B-36, MU-2B-36A and MU-2B-60. The introduction provides the serial-number ranges for each model, and individual pages use an applicability block to show which variants the information applies to.
The general construction section identifies the MU-2 as a high-wing utility airplane equipped with two AiResearch TPE331 turboprop engines. It describes the semi-monocoque fuselage, wing attachment and major wing components, integral and bladder tank arrangements by model, flaps, spoilers, trim ailerons, landing gear arrangement and flight-control construction. General dimension drawings, station diagrams and an airplane master index provide the reference framework used by later repair sections.
IMAGES PREVIEW
Structural Inspection, Damage Evaluation and Repair Data
Before the component repair chapters, the manual establishes the common structural practices used across the airplane. Ground handling instructions cover jacking, leveling and hoisting, including support equipment and model-specific attachment points. Symmetry and alignment procedures address checks following suspected distortion, such as after a dangerously hard landing or operation beyond flight limitations, and include measuring points, formulas and allowable results.
Airframe inspection guidance explains access to structural areas and detailed visual inspection for conditions including cracks, dents, buckling, corrosion, burned areas, missing or loose fasteners and elongated holes. Damage is then classified as negligible or as repairable by patching, insertion or replacement. Aerodynamic smoothness requirements address local waviness, gaps and mismatches on repaired surfaces, while standard repair information covers skin panels, bulkhead webs, structural sections and areas affected by airflow.
A substantial part of the manual is devoted to repair materials and fasteners. It identifies aluminum alloy sheet, steel sheet, extrusions and synthetic rubber used for airframe work, and provides repair tables for rivet spacing, row requirements, minimum bend radii, fastener quantities and net edge distances. Rivet sections cover solid and blind fasteners, material and size selection, edge-distance definitions and loose-rivet repair. Typical structural-section drawings show channel, angle, zee, hat, tee and other shapes together with repair-element arrangements.
Sealing and Corrosion Protection
The Mitsubishi MU-2B Series Structural Repair Manual YET 72035A PDF also contains detailed sealing procedures for integral fuel tanks, pressure-tight joints, water-tight areas and self-contouring seals. It covers cleaning, sealant preparation, application methods, curing, leak location and leak testing, with separate examples for faying surfaces, fasteners, doors, holes, slots, windshields and windows. Integral tank leakage is classified by severity, with procedures for locating the source and restoring sealed areas.
Corrosion prevention is treated as part of structural preservation rather than a short maintenance note. The manual describes uniform etch, pitting, intergranular, exfoliation and galvanic corrosion, followed by cleaning, acid brightening, corrosion removal, paint removal, chemical protection and final protective finishing. Material-specific procedures and cautions help relate the treatment to clad aluminum, steel and other structural materials used in the aircraft.
Chapters Covered
- Section I – General
- Type of Construction
- Ground Handling – Jacking, Leveling and Hoisting
- Symmetry and Alignment Check
- Rebalancing of Elevator and Rudder
- Airframe Inspection
- Classification of Damage
- Aerodynamic Smoothness
- Sealing
- Corrosion Prevention
- Standard Repair
- Materials Used in Repair
- Rivet
- Section II – Wing Group
- General and Outline of Structure
- Wing, Inboard and Outboard Sections
- Front and Rear Spars, Flap, Flap Rail, Spoiler and Trim Aileron
- Wing-Fuselage Fillet, Tip Tank Fillet and Tip Tank
- Limits for Negligible Damage
- Practical Repair Examples – wing panels, skin, spars, flap, fillet and flap main guide rail
- Section III – Empennage Group
- General Description of Structure
- Structural Material Index Diagram
- Limits for Negligible Damage
- Typical Repair Example
- Section IV – Fuselage Group
- Short Fuselage Group – General and Description of Structure
- Short Fuselage – Limits for Negligible Damage and Typical Repair Examples
- Long Fuselage Group – General and Description of Structure
- Long Fuselage – Limits for Negligible Damage and Typical Repair Examples
- Section V – Nacelle Group
- General Description
- Nacelle structural repair information and incorporated temporary revisions
- Section VI – Typical Repairs and Application
- Defective Holes and Edge Distance
- Repairs for Formed and Double-Formed Flanges
- Repairs for Panels and Control Surface Trailing Edges
- Repair of Lightening Holes and Cracks Around Lightening Holes
- Repair of Small and Large Holes
- Repair of Spar Web and Cracks at Spar/Skin Areas
- Repair of Cracked Dimples and Damaged Skin
- Repair of FRP Skin and Formed Plastic Core Sandwich Panels
- Repair of Windshield
- Section VII – Gear-Up Landing
- General
- Repair of Gear-Up Landing Damage
- Section VIII – Numerical Index
- Numerical Index for part-number references used in Sections II through V
Taken as a whole, the manual gives a technician a path from locating and evaluating structural damage to selecting an applicable repair method, identifying structural materials and fasteners, checking repair geometry and consulting detailed component drawings. Wing repair examples include cracked or buckled skins, upper panels, trailing-edge structure, spar areas, wing-fuselage fillets, tip tanks, leading-edge hinges and flap guide-rail replacement. Nacelle material in the included revisions adds repair examples for damaged nacelle door structure and wear or cracking around exhaust-duct areas.
Use the Correct Repair Data for MU-2B Structural Work
This Mitsubishi MU-2B Series Structural Repair Manual YET 72035A PDF supports structural inspection, damage classification, repair planning and execution across the airframe, from skin and spar repairs to sealing, corrosion treatment, fastener selection, alignment checks and gear-up landing damage. Working from the specified procedures, applicability blocks, material data, allowable limits and repair drawings helps keep the repair matched to the affected structure and MU-2B configuration. The manual is supplied as an instant PDF download after purchase, with no shipping required; it can be opened on compatible phones, tablets and computers and printed when a paper reference is useful in the workshop or hangar.
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