Type Certificate Data Sheet (TCDS)
Robinson R44 Cadet · Type Certificate
Overview
This document serves as a Type Certificate Data Sheet (TCDS) for the Robinson R44 Cadet and other R44 models. It outlines the life-limited components, airworthiness limitations, and mandatory replacement schedules for various parts. The document is intended for operators and maintenance personnel responsible for the upkeep of R44 helicopters, ensuring compliance with FAA regulations. It provides critical information on tracking time in service for components and the specific life limits for parts based on their installation history and helicopter configuration.
- Operators must maintain accurate time-in-service records for airframe and engine components.
- Life-limited parts must be documented upon installation, including part numbers and service times.
- Fatigue life-limited parts have mandatory replacement schedules that must be followed.
- The R44 Cadet has specific service lives for parts that differ from other R44 models.
- The TCDS H11NM can be accessed via the FAA Dynamic Regulatory System website.
Document
Source
Originally published by robinsonstrapistorprod.blob.core.windows.net. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type
- Type Certificate
- Year
- 2024
- Pages
- 8
- File size
- 759 KB
- Publisher
- robinsonstrapistorprod.blob.core.windows.net
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Most owners only have the POH. Here's the essential set for the Robinson R44 Cadet.
- Pilot's Operating Handbook / AFM
- Checklist
- Maintenance Manual
- Parts Catalog (IPC)
- Systems & Wiring
- Service Bulletins
- Type Certificate (TCDS)
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In this document
Life-Limited Components
This section details the operator's responsibility to maintain records of time in service for the airframe, engine, and life-limited components. It describes the types of hourmeters used in R44 helicopters and how to document time in service accurately.
Time-In-Service Records
Operators must maintain accurate records of time in service for the airframe and engine, starting from the date of the original RHC-issued Certificate of Airworthiness. The section emphasizes the importance of documenting the installation date and service time for life-limited parts.
Fatigue Life-Limited Parts
This section lists mandatory replacement schedules for fatigue life-limited parts and specifies that if parts are interchanged between R44 and R66 helicopters, the shorter life limit must be adhered to.
Type Certificate Data Sheet (TCDS)
The TCDS H11NM is referenced, providing a link to the FAA Dynamic Regulatory System website for further details.
Airworthiness Limitations
The Airworthiness Limitations Section outlines mandatory inspections and maintenance required under FAA regulations. It includes two lists for fatigue life-limited parts, with specific service lives for R44 and R44 II helicopters, as well as a separate list for the R44 Cadet.
Safety notes
- Components with undocumented time in service cannot be considered airworthy and must be removed from service.
Full document text
CHAPTER 3 LIFE-LIMITED COMPONENTS Section Title Page 3.100 Life-Limited Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1 3.110 Time-in-Service Records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1 3.120 Fatigue Life-Limited Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.1 3.200 Type Certificate Data Sheet (TCDS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2 3.300 Airworthiness Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.3 FEB 2024 Chapter 3 Life-Limited Components Page 3.i Intentionally Blank Page 3.ii Chapter 3 Life-Limited Components FEB 2024 FEB 2024 Chapter 3 Life-Limited Components Page 3.1 CHAPTER 3 LIFE-LIMITED COMPONENTS 3.100 Life-Limited Components 3.110 Time-In-Service Records It is the operator’s responsibility to maintain a record of time in service for the airframe, engine, and life-limited components. An hourmeter activated by engine oil pressure is standard equipment on earlier R44 helicopters. Later helicopters are equipped with an hourmeter activated by a combination of oil pressure and up collective; the hourmeter will record time only when engine oil pressure exists and the collective is raised. Either hourmeter is an acceptable means of recording time in service (refer to § 1.007). Calendar time in service for the airframe and engine begins on the date of the original RHC- issued Export (or Standard) Certificate of Airworthiness for the helicopter. For spares without a storage limit specified in § 1.160, calendar time in service begins on the date of the RHC-issued Airworthiness Approval Tag (Authorized Release Certificate) issued with the invoice. If a component or an inspection is scheduled for hourly and calendar intervals, comply with whichever requirement comes first, then reset interval unless otherwise specified. When installing a life-limited part or a part with an overhaul requirement, record in the helicopter maintenance record the installation date, part number, part name, serial number, helicopter total time, and time in service accumulated by part since new or since last overhaul, as applicable. WARNING Components with mandatory overhaul times or life limits whose time in service is not reliably documented cannot be considered airworthy and must be removed from service. 3.120 Fatigue Life-Limited Parts The Airworthiness Limitations section lists the mandatory replacement schedule for fatigue life-limited parts. If a part is fatigue life-limited or has a mandatory overhaul requirement and is interchanged between an R44 and an R66 helicopter, and if the part life-limit or overhaul requirement is different between an R44 and an R66 helicopter, the shorter life-limit or overhaul requirement must be used. If a part is fatigue life-limited or has a mandatory overhaul requirement, and the accumulated cycles and/or time-in-service are known but the helicopter type is unknown, the shorter life-limit or overhaul requirement must be used. Listed items must be removed from the helicopter at the specified intervals and permanently retired from service by destroying or damaging each part so it cannot inadvertently be returned to service. 3.200 Type Certificate Data Sheet (TCDS) TCDS H11NM is available at FAA Dynamic Regulatory System website: https://drs.faa.gov. Page 3.2 Chapter 3 Life-Limited Components FEB 2024 DEC 2024 Chapter 3 Life-Limited Components Page 3.3 3.300 Airworthiness Limitations The Airworthiness Limitations Section is FAA approved and specifies inspections and other maintenance required under 14 CFR §§ 43.16 and 91.403, unless an alternative program has been FAA approved. There are two lists for fatigue life-limited parts. List A is applicable to all R44 and R44 II helicopters. List B provides increased service lives which may be used for the two-seat R44 Cadet configuration (R44 serial numbers 30001 through 39999). A. R44 and R44 II Fatigue Life-Limited Parts Part Number Description Maximum Service Life C023-1 . . . . . . . . . . . . . . . . . . Tailcone Assembly, Rev M & Prior . . . . . . . . . 2000 Hours C016-24 & -54 . . . . . . . . . . . . . Main Rotor Blade . . . . . . . . . . . . . . . . . . . . . . 2200 Hours or 12 years1 C016-7 . . . . . . . . . . . . . . . . . . Main Rotor Blade, Rev AJ & Prior . . . . . . . . . . 2200 Hours or 12 years1 C016-7 . . . . . . . . . . . . . . . . . . Main Rotor Blade, Rev AK & Subsequent . . . . 2200 Hours or 15 years1 C020-1 & -2 . . . . . . . . . . . . . . Upper Frame . . . . . . . . . . . . . . . . . . . . . . . . . 2200 Hours C029-1, -2, & -3 . . . . . . . . . . . Tail Rotor Blade, Rev Q & Prior . . . . . . . . . . . . 2200 Hours or 12 years1 C029-3 . . . . . . . . . . . . . . . . . . Tail Rotor Blade, Rev R & Subsequent . . . . . . 2200 Hours or 15 years1 C030-1 . . . . . . . . . . . . . . . . . . Tail Rotor Hub . . . . . . . . . . . . . . . . . . . . . . . . 2200 Hours C044-1 . . . . . . . . . . . . . . . . . . Horizontal Stabilizer, Rev L & Prior . . . . . . . . . 2200 Hours2 C146-1 & -5 . . . . . . . . . . . . . . Gear Set, Main Gearbox . . . . . . . . . . . . . . . . . 2200 Hours C146-2 . . . . . . . . . . . . . . . . . . Pinion, Main Gearbox . . . . . . . . . . . . . . . . . . . 2200 Hours C154-1 . . . . . . . . . . . . . . . . . . Main Rotor Hub . . . . . . . . . . . . . . . . . . . . . . . 2200 Hours2 C158-1 . . . . . . . . . . . . . . . . . . Main Rotor Spindle . . . . . . . . . . . . . . . . . . . . . 2200 Hours2 C196-1 . . . . . . . . . . . . . . . . . . Tail Rotor Drive Shaft . . . . . . . . . . . . . . . . . . . 2200 Hours C263-1 & -2 . . . . . . . . . . . . . . Sump, Main Gearbox . . . . . . . . . . . . . . . . . . . 2200 Hours C264-1 & -2 . . . . . . . . . . . . . . Housing, Main Gearbox . . . . . . . . . . . . . . . . . 2200 Hours
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C545-1 . . . . . . . . . . . . . . . . . . Gear Set, Tail Gearbox . . . . . . . . . . . . . . . . . . 2200 Hours2 C545-2 . . . . . . . . . . . . . . . . . . Pinion, Tail Gearbox . . . . . . . . . . . . . . . . . . . . 2200 Hours2 C647-12 . . . . . . . . . . . . . . . . . Bearing Set, C017-6 Swashplate . . . . . . . . . . 2200 Hours2 D062-2 . . . . . . . . . . . . . . . . . . Tail Rotor Hub . . . . . . . . . . . . . . . . . . . . . . . . 2200 Hours D079-1 . . . . . . . . . . . . . . . . . . Tail Rotor Guard . . . . . . . . . . . . . . . . . . . . . . . 2200 Hours2 G062-2 . . . . . . . . . . . . . . . . . . Tail Rotor Hub . . . . . . . . . . . . . . . . . . . . . . . . 2200 Hours2 A756-64 . . . . . . . . . . . . . . . . . Cyclic Grip . . . . . . . . . . . . . . . . . . . . . . . . . . . 4400 Hours C023-1 . . . . . . . . . . . . . . . . . . Tailcone Assembly, Rev N & Subsequent . . . . 4400 Hours C023-2, -3, -4, -14, & -15 . . . . . Tailcone Assembly . . . . . . . . . . . . . . . . . . . . . 4400 Hours C044-1 . . . . . . . . . . . . . . . . . . Horizontal Stabilizer, Rev M & Subsequent . . . 4400 Hours2 C198-1 & -2 . . . . . . . . . . . . . . Lower Swashplate . . . . . . . . . . . . . . . . . . . . . 4400 Hours C251-1 . . . . . . . . . . . . . . . . . . Main Rotor Shaft . . . . . . . . . . . . . . . . . . . . . . 4400 Hours 1 Whichever limit occurs first. Calendar time starts on date of original RHC-issued Airworthiness Approval. 2 Maximum service life is 2000 hours if part is, or ever has been, installed on an R66 helicopter. 3 Maximum service life is 4000 hours if part is, or ever has been, installed on an R66 helicopter. 4 Obsolete due to FAA AD 2014-23-16. Page 3.4 Chapter 3 Life-Limited Components DEC 2024 3.300 Airworthiness Limitations (continued) A. R44 and R44 II Fatigue Life-Limited Parts (continued) Part Number Description Maximum Service Life C319-34 . . . . . . . . . . . . . . . . . Cyclic Torque Tube . . . . . . . . . . . . . . . . . . . . 4400 Hours C320-14 . . . . . . . . . . . . . . . . . Cyclic Stick . . . . . . . . . . . . . . . . . . . . . . . . . . 4400 Hours C337-14 . . . . . . . . . . . . . . . . . Jackshaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4400 Hours D196-1 . . . . . . . . . . . . . . . . . . Tail Rotor Drive Shaft . . . . . . . . . . . . . . . . . . . 4400 Hours2 F050-2 . . . . . . . . . . . . . . . . . . Horizontal Stabilizer . . . . . . . . . . . . . . . . . . . . 4400 Hours3 1 Whichever limit occurs first. Calendar time starts on date of original RHC-issued Airworthiness Approval. 2 Maximum service life is 2000 hours if part is, or ever has been, installed on an R66 helicopter. 3 Maximum service life is 4000 hours if part is, or ever has been, installed on an R66 helicopter. 4 Obsolete due to FAA AD 2014-23-16. B. R44 Cadet Fatigue Life-Limited Parts The following service lives may be used for parts installed on R44 helicopter serial numbers 30001 through 39999. The service lives from List A must be used if the part is, or ever has been, installed on any R44 helicopter other than serial numbers 30001 through 39999. Part Number Description Maximum Service Life C016-7 . . . . . . . . . . . . . . . . . . Main Rotor Blade, Rev AF thru Rev AJ . . . . . . 2400 Hours or 12 years1 C016-7 . . . . . . . . . . . . . . . . . . Main Rotor Blade, Rev AK & Subsequent . . . . 2400 Hours or 15 years1 C020-1 & -2 . . . . . . . . . . . . . . . Upper Frame . . . . . . . . . . . . . . . . . . . . . . . . . . 2400 Hours C029-3 . . . . . . . . . . . . . . . . . . Tail Rotor Blade, Rev Q & Prior . . . . . . . . . . . . 2400 Hours or 12 years1 C029-3 . . . . . . . . . . . . . . . . . . Tail Rotor Blade, Rev R & Subsequent . . . . . . 2400 Hours or 15 years1 C146-2 . . . . . . . . . . . . . . . . . . . Pinion, Main Gearbox . . . . . . . . . . . . . . . . . . . 2400 Hours C146-5 . . . . . . . . . . . . . . . . . . . Gear Set, Main Gearbox . . . . . . . . . . . . . . . . . 2400 Hours C154-1 . . . . . . . . . . . . . . . . . . . Main Rotor Hub . . . . . . . . . . . . . . . . . . . . . . . . 2400 Hours C158-1 . . . . . . . . . . . . . . . . . . . Main Rotor Spindle . . . . . . . . . . . . . . . . . . . . . 2400 Hours C263-2 . . . . . . . . . . . . . . . . . . . Sump, Main Gearbox . . . . . . . . . . . . . . . . . . . 2400 Hours C264-2 . . . . . . . . . . . . . . . . . . . Housing, Main Gearbox . . . . . . . . . . . . . . . . . . 2400 Hours C545-1 . . . . . . . . . . . . . . . . . . . Gear Set, Tail Gearbox . . . . . . . . . . . . . . . . . . 2400 Hours C545-2 . . . . . . . . . . . . . . . . . . . Pinion, Tail Gearbox . . . . . . . . . . . . . . . . . . . . 2400 Hours C647-12 . . . . . . . . . . . . . . . . . . Bearing Set, C017-6 Swashplate . . . . . . . . . . . 2400 Hours D079-1 . . . . . . . . . . . . . . . . . . . Tail Rotor Guard . . . . . . . . . . . . . . . . . . . . . . . 2400 Hours G062-2 . . . . . . . . . . . . . . . . . . . Tail Rotor Hub . . . . . . . . . . . . . . . . . . . . . . . . . 2400 Hours C023-1, -14, & -15 . . . . . . . . . Tailcone Assembly, Rev AQ & Subsequent . . . 4800 Hours C044-1 . . . . . . . . . . . . . . . . . . Horizontal Stabilizer, Rev P & Subsequent . . . . 4800 Hours D196-1 . . . . . . . . . . . . . . . . . . . Tail Rotor Drive Shaft . . . . . . . . . . . . . . . . . . . 4800 Hours F050-2 . . . . . . . . . . . . . . . . . . Horizontal Stabilizer . . . . . . . . . . . . . . . . . . . . 4800 Hours 1 Whichever limit occurs first. Calendar time starts on date of original RHC-issued Airworthiness Approval. Approved By: Date: 4/9/24 Manager, Federal Aviation Administration West Certification Branch, AIR-770 FAA Approved: Pages 3.3, 3.4, and 3.5 constitute the Airworthiness Limitations Section in its entirety, are considered segregated from the rest of the document, and set forth the FAA- approved mandatory replacement times for fatigue life-limited parts. 3.300 Airworthiness Limitations (continued) DEC 2024 Chapter 3 Life-Limited Components Page 3.5 Intentionally Blank Page 3.6 Chapter 3 Life-Limited Components DEC 2024
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