Sikorsky S-70i Helicopter Organizational & Bench Maintenance Manual Volume 9 – TM 1-S70i-280-23-9 PDF
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The Sikorsky S-70i Helicopter Organizational & Bench Maintenance Manual Volume 9 (TM 1-S70i-280-23-9) covers aircraft-general servicing, cleaning, lubrication, ground handling, vibration analysis and periodic/special inspections for the S-70i. 693 pages, 135 work packages, instant PDF download.
Description
Sikorsky S-70i Helicopter Organizational & Bench Maintenance Manual Volume 9 – TM 1-S70i-280-23-9
This Sikorsky S-70i Helicopter Organizational & Bench Maintenance Manual Volume 9 is the technical manual identified as TM 1-S70i-280-23-9 and issued by Sikorsky Aircraft Corporation for organizational-level and bench-level maintenance of the S-70i helicopter. Published 15 October 2013 and updated through Change 2 dated 1 December 2015, it gathers the aircraft-general servicing, cleaning, lubrication, ground handling, vibration analysis and periodic/special inspection work packages that a line unit needs to keep an S-70i airworthy and mission-ready. The file runs 693 pages and is divided into 135 work packages numbered WP 1401 00 through WP 1531 00.
Unlike the model-specific volumes that dig into a single airframe system, Volume 9 is the broad aircraft-general volume. It is the section a maintainer turns to for day-to-day servicing of struts, tires, gearboxes, engines, hydraulics, fuel cells and the APU; for the cleaning and lubrication routines that drive corrosion control; for ground handling tasks such as towing, jacking, mooring, kneeling and folding; for on-aircraft vibration analysis and rotor track-and-balance work; and for the scheduled, calendar-based and incident-driven inspection requirements that apply across the whole airframe.
File Details
- Manual Type: Organizational and Bench Maintenance Technical Manual
- Applicable Aircraft: Sikorsky S-70i Helicopters
- Volume: Volume 9
- Document Number: TM 1-S70i-280-23-9
- Publisher: Sikorsky Aircraft Corporation
- Original Issue Date: 15 October 2013
- Change 1: 30 September 2014
- Change 2: 1 December 2015
- Language: English
- Page Count: 693 pages
- Work Packages: 135 (WP 1401 00 through WP 1531 00)
- File Format: PDF
Chapters Covered
The volume splits into Chapter 35 (Organizational and Bench Maintenance Instructions for Aircraft General) and Chapter 36. Work packages fall into these task families:
IMAGES PREVIEW
- Servicing Requirements (WP 1401 00-1428 00)
- Service Main Landing Gear Shock Struts
- Service Main Landing Gear Tires
- Service Tail Landing Gear Shock Strut
- Service Tail Landing Gear Tire
- Service/Drain Engine and Service Engine Starter
- Service Hydraulic Pump Modules
- Service/Drain APU and Service APU Accumulator
- Option Service Winterization Kit APU Accumulator
- Service/Drain Main Transmission, Intermediate Gear Box and Tail Gear Box
- Service Main Rotor Head Damper and Tail Drive Shaft Viscous Dampers
- Pressure Refuel, Gravity Refuel, Closed Circuit Refuel and Pressure/Gravity Defuel of Main and External Tanks
- Preserve Main Fuel Cell
- Option Service Rescue Hoist
- Option Service/Deservice Environmental Control System and ECS Compressor
- SLAB Battery Charging/Conditioning
- Cleaning Requirements (WP 1429 00-1454 00)
- Clean Flight Controls and Hydraulic Deck; Clean Helicopter Exterior; Clean Engine
- Clean Main and Tail Rotor Blades; Clean Main Rotor Blade Expandable and Solid Pins; Clean Main Rotor Head
- Clean Powertrain, Cargo Hook, Main and Tail Landing Gear
- Clean Tail Wheel Lockpin, Tail Wheel Tow Adapters, Crew Chief’s and Passenger’s Seats
- Clean Main Rotor Deice Slipring and Brush Block; Clean Tail Rotor Deice Slipring
- Clean Windshield Wiper Pivot Studs, Cockpit Door Window, Soundproofing Panels, Blackout Curtains
- Clean External Fuel Tank; Clean APU EAPS; Clean Air Inlet Anti-Ice Valve; Clean BRU-22A/A Ejector Rack
- Option Clean Rescue Hoist; Underwater Beacon Cleaning
- Lubrication Requirements (WP 1455 00-1467 00)
- Lubricate Bifilar, Swashplate, Mixer Bellcranks, Rotary Inputs
- Lubricate Landing Gear Shock Struts and Stabilator Actuator Assembly
- Lubricate Windshield Wiper Pivot Studs and Windshield Wiper Converter
- Lubricate Tail Wheel Lockpin and Tail Wheel Bearings
- Lubricate Door Locks and BRU-22A/A Ejector Rack
- Ground Handling General (WP 1468 00-1483 00)
- Tow, Jack, Tiedown and Moor, Park and Kneel Helicopter
- Protective Covers and Cabin Tiedown Fittings
- External/Internal Hydraulic Power and External Electrical Power
- Fold/Spread Tail Rotor Blades and Fold/Spread Main Rotor Blades
- Fold/Unfold Stabilator and Fold/Unfold Tail Pylon
- Tiedown Plates and Helicopter Weight and Balance Calculations
- Vibration Analysis (WP 1484 00) — IVHMS-based rotor track and balance, main rotor ground tracking and ground balance, main rotor 1/rev and 4/rev flight tuning, tail rotor balance, engine output shaft balance and vibration check, oil cooler vibration check, and trim tab adjustment.
- Periodic/Special Inspection Requirements (WP 1485 00-1526 00)
- Main Rotor Blade Heater Mat Inspection
- Engine Output Shaft Inspections After Replacement and After Disconnect
- Gear Boxes Mounting Bolts Torque Check – 9 to 11 Hours
- Outboard Retention Plate Nuts and Pitch Beam Retaining Nut Torque Check – 9 to 11 Hours
- Tail Drive Shaft Torque Check; Tail Gear Box Inboard Retention Plate Torque Check; Tail Rotor Cable Tension Check; Main Rotor Head Torque Check
- Scheduled Hourly Intervals (Every 40, 100, 120, 360, 720, 1000, 1500 Hours)
- Calendar Intervals (Before First Flight of Day, Before Every Flight, 30 Days, ESM 90 Day, 6 Months, 12 Months, 36 Months, 48 Months)
- Incident-Driven Inspections: Hard Landing, Post Lightning Strike, Overtorque, Overtemperature, Overspeed, Sudden Stoppage, Salt Water Immersion or Dry Chemical Fire Extinguishing Agents, Main Rotor Droop Stop Pounding, Erosive Conditions, Heavy Rainfall, High Winds and more
- Retirement Schedule and Life Limited Components
- Chapter 36 Work Packages (WP 1527 00-1531 00) — Cold Weather Operations, Illustrated Manufactured Items List, Inventory (Not Applicable), Storage of Aircraft and Weight and Balance.
Taken as a whole, Volume 9 is the maintainer’s reference for everything that is not tied to a single airframe system. The servicing work packages give fluid types, capacities, pressures and bleed or refill procedures for the landing gear, engines, transmission, tail drive and fuel system. The cleaning and lubrication sections specify compounds, sequences and intervals, with notes for salt-laden, sandy, dusty, wet or cold environments. The ground handling section covers the equipment and step-by-step procedures for safely moving, raising, securing, folding and storing an S-70i on the ground. The vibration analysis section is the S-70i rotor track-and-balance reference and describes the IVHMS menus, acquisitions, MFD bezel key sequences and correction calculations for the main rotor, tail rotor, engine output shafts and oil cooler. The periodic and special inspection section provides both the schedule and the acceptance/rejection criteria for the routinely recurring checks and for the incident-driven inspections after a hard landing, lightning strike, sudden stoppage, overspeed, overtemp, overtorque or immersion.
Why Volume 9 Is the Volume That Gets Used
Sikorsky split the S-70i maintenance coverage across multiple technical manual volumes, and Volume 9 is the one that sits underneath the others. A maintainer servicing a main landing gear shock strut needs the exact nitrogen pressures, the exact hydraulic fluid types and the exact bleed sequence found here. A maintainer running an S-70i rotor track-and-balance evolution needs the IVHMS acquisition regimes, the phase and amplitude limits, and the correction guidance this volume carries. A maintainer planning a hard landing inspection needs the full inspection tree, from drag beam and yoke support fittings to tailcone fold fittings and droop stop ears, laid out work package by work package here. Because the volume covers everything from filling a strut to folding a tail pylon, it is one of the most-used volumes in the organizational maintenance set.
Get the Sikorsky S-70i Organizational & Bench Maintenance Manual Volume 9
Having the correct Sikorsky S-70i Helicopter Organizational & Bench Maintenance Manual Volume 9 on hand means being able to perform the servicing, cleaning, lubrication, ground handling, vibration analysis and inspection tasks this helicopter requires without guessing at pressures, torque values, fluid specifications, intervals or acceptance and rejection criteria. Every procedure in the manual is organized by work package number, so a task called out in a scheduled or special inspection can be traced directly to its step-by-step instruction.
The Sikorsky S-70i Organizational & Bench Maintenance Manual Volume 9 is delivered as an instant PDF download — no shipping, no waiting and no physical book to store in the hangar. It can be opened on a laptop, tablet or smartphone, printed page by page for a job, or printed in full for a shop library. Once downloaded, it is yours to reference any time an S-70i needs servicing, lubrication, a track-and-balance adjustment or a scheduled or special inspection.
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