TAR 4/21B/7 MDHI 600N Aircraft Certification Unit
TABLE OF CONTENTS EXECUTIVE SUMMARY 1 1. INTRODUCTION 1 2. FOREIGN TYPE CERTIFICATE DETAILS 1 3. TYPE ACCEPTANCE CERTIFICATE 2 4. TYPE DATA 2 5. ADDITIONAL NEW ZEALAND REQUIREMENTS 4 ATTACHMENTS 6 i TAR 4/21B/7 MDHI 600N
Executive Summary New Zealand Type Acceptance has been granted to the MD Helicopters Inc. Model 600N based on validation of FAA Type Certificate number H3WE. There are no special requirements for import. The 600N is now eligible for the issue of an Airworthiness Certificate in the Standard Category in accordance with CAR 21.177, subject to any outstanding New Zealand operational requirements being met. (See Section 5 of this report for a review of compliance of the basic type design with the operating Rules.) 1. Introduction This report details the basis on which Type Acceptance Certificate No. 4/21B/7 was granted in the Standard Category in accordance with NZCAR Part 21 Subpart B. Specifically the report aims to: (a) Specify the foreign type certificate and associated airworthiness design standard used for type acceptance of the model in New Zealand; and (b) Identify any special conditions for import applicable to any model covered by the Type Acceptance Certificate; and (c) Identify any additional requirements which must be complied with prior to the issue of a NZ Airworthiness Certificate or for any subsequent operations. 2. Foreign Type Certificate Details Type Certificate: H3WE Issued by: Manufacturer: Model: Engine: MCTOW Federal Aviation Administration MD Helicopters Inc. (See TCDS Production Basis for manufacturer changes) 600N Rolls Royce 250-C47M 4100 lb. Noise Category: FAR 36, Appendix J at Amendment 36-21 The certification basis of the Model 600N is FAR 27 dated October 2, 1964 through Amendment 27-30, with some deviations as noted in Section 4. This is an acceptable certification basis in accordance with NZCAR Part 21B Para 21.41, as FAR Part 27 is the basic standard for Normal Category Rotorcraft called up under Part 21 Appendix C. One Equivalent Safety Finding was granted and a special condition relating to HIRF was imposed by the FAA, because of the FADEC engine control system. There are no non-compliances and no additional special conditions have been prescribed by the Director under 21.23. 1 TAR 4/21B/7 MDHI 600N
The certification basis of the Rolls Royce 250-C47M is FAR Part 33, with Amendments 33-2 through 33-4, and Exemption Number 2087B from FAR 33.69. This is the basic standard for aircraft engines called up under Part 21 Appendix C. 3. Type Acceptance Certificate The application for New Zealand type acceptance, dated 10 th September 2003, was from Faram Helicopters Ltd, the importer of the first-of-type example serial number RN016, registered ZK-INT. The MD600N is an eight-seat single turbine light utility helicopter. Type Acceptance Certificate No. 4/21B/7 was granted on 10 th October 2003 to the MDHI 600N based on validation of FAA Type Certificate H3WE, and includes the Rolls Royce 250C-47M turbine engine based on validation of FAA Type Certificate E1GL. There are no special requirements for import into New Zealand. The 600N is a stretched development of the Model 500N, the final evolution of the Hughes 369 Series and which first introduced the NOTAR torque-control system. (The Model 500N was previously type accepted in September 1993. See TAR 4/93.) The main changes are a 30 inch extension to the cabin to fit an extra row of seats; the NOTAR tailboom is extended 28 inches; power is increased from 425 to 600 hp with the installation of the FADEC-equipped 250C-47M engine, along with higher fuel capacity; a new transmission and drive system is fitted to support the higher loads, including a six-bladed main rotor head; longer strengthened landing skids are fitted; and maximum gross weight is increased. 4. Type Data The type data requirements of NZCAR Part 21B Para 21.43 have been satisfied by supply of the following documents: (1) Type certificate: FAA Type Certificate H3WE Model 600N approved May 15, 1997 FAA Type Certificate Data Sheet H3WE at Revision 21 dated May 10, 2003 FAA TCDS E1GL at Rev. 21 dated 9 June 2003 250-C47M added May 14, 1997 (2) Airworthiness design requirements: Already held by the CAA. (3) Certification compliance listing: MDHS Model 600N Compliance Checklist Rev B, dated 3/1/00 MD 600N Special Condition 27-ASW-4, protection for electrical / electronic systems from High Intensity Radiated Fields (HIRF), dated January 21, 1997 Issue Paper F-1 Power on V NE Envelope Limits, dated April 22, 1997 FAR para.s 27.141(b) and 27.251 specify handling conditions to be met. The 600N initially did not meet these, including pilot control feedback loads and pilot skill level needed to maintain a 30 banked turn. To meet these V NE was reduced and the MCP TOT limit reduced above 10,000 feet. Issue Paper F-2 MCP Climb Directional Stability, dated April 22, 1997 FAR 27.177 requires static directional stability be positive in cruise and climb at sideslip angles up to ±10. The 600N had difficulty in complying with this at aft c.g., even at reduced MCP, and V Y was increased. TAR 4/21B/7 MDHI 600N 2
Issue Paper M-1 Instructions for Continued Airworthiness, dated April 15, 1997 Boeing letter 98-600-188 Magish to Winnert (UK-CAA), Subject: Certification MD 600N: UK CRI A-01 Applicable Requirements and Depth of Investigation and CAI 01-07 FAA Regression, Dated: October 6, 1998 Containing: ICPTF Justification for MDHS Model 600N Issue Paper G-1, TC Basis, dated December 26, 1996 and related revisions The 600N was accepted as a derivative of the 369/500N Series, which were certificated to CAR 6. However McDonnell Douglas Helicopter System (MDHS), as it was then known, elected to show compliance against FAR 27 Admt 30. However the FAA agreed to the following regressions: FAR 27.562 (Emergency Landing Dynamic Conditions) and FAR 27.863 (Flammable Fluid Fire Protection) were excluded. This was substantiated in accordance with AC20-ICPTF methodology. MDHS demonstrated energy absorbing seats could not be justified economically. This was based on an analysis of Model 369/500N data, which showed only 8% of all survivable accidents resulted in fatalities, even though the helicopter was destroyed in 31% of cases. This proved the inherent crashworthiness of the basic fuselage design. The regulatory analysis using the AC Safety/Resource Evaluation Guide showed the dynamic seating change in this case would be not effective. Service experience was also accepted for the fuel system on the basis there had never been an in-flight fire from that cause in 25 million flight hours. MDHS also added other beneficial enhancements including self-sealing valves, fuel-free vent tubes and the 50 drop test for the fuel cell. FAR 27.561 at Amendment 27-24 Incidental to the exclusion of FAR 27.562. FAR 27.607 (Self Locking Nuts) at Amendment 27-3 Accepted on the basis that relevant service experience shows the current fastener design (expanding bolts) was safe and acceptable. FAR 27.785 (Seats, berths, safety belts and harnesses) at Amendment 27-20 Shoulder harnesses are fitted as standard. Otherwise incidental to the exclusion of FAR 27.562. FAR 27.1325 (Static Pressure Systems) at Amendment 27-12 Accepted as identical to the 500N. Issue Paper P-3, Engine Gas Generator Speed Instrument Display (ESF) The FAA granted an Equivalent Safety Decision against FAR 27.1549(b) for the N 1 gauge. The 600N gauge only displays the RPM in digits with abnormal values shown by a single red light with no trend indication. This literal non-compliance was accepted because N1 is only a third (back-up) gauge for engine power level and abnormal conditions are adequately indicated by the red LED. MDHS Memorandum Magish to Distribution, Subject: Minutes MD600N Preliminary Type Board Meeting 7 June 1995 Ref. JJM 95-038 MDHS Report 600N-CE-2005 N/C FAR 36 Appendix J Noise Certification Test Report for Model 600N Helicopter, dated 05 December 1996 MDHS Report 600N-CE-2008 Rev A ICAO 16 Chapter 11 Noise Certification Test Report for Model 600N Helicopter, dated 18 August 1998 Discussion Paper: Model 369/500N/600N series Engine Emissions Compliance Conclusion: Engine Emission Certificates are not required for the Model 369/500N/600N series. (4) Flight manual: FAA-Approved Rotorcraft Flight Manual for the MD 600N Doc. CSP-600RFM-1 Reissue #1, Rev. 7 CAA Accepted as AIR 2838 Note: The FM has an unusual presentation of performance in three sections. (See Discussion Paper: MD 600N Certification Basis and the Rotorcraft Flight Manual, Dated 11 Feb 2000) MD was only able to show compliance with the FAR 27 H-V requirement at 7000 ft Density Altitude (DA) up to 3850 lb. Above this weight the FAA accepted compliance with the more restrictive FAR 29 case where the manufacturer can demonstrate all critical combinations of internal weight and DA, on the basis of equivalent safety. However the FAA would not allow RFM charts that combined FAR 27 and FAR 29 rules. Therefore there are two separate FAA approved performance sections in the Flight Manual, and another MD-approved section which combines them, for ease of reading. 3 TAR 4/21B/7 MDHI 600N
(5) Illustrated Parts Catalogue: CSP-IPC-4 IPC (369D/E/FF/500N/600N) (6) Maintenance manual and service data for aircraft and engine: CSP-HMI-2 Handbook of Maintenance Instructions - Servicing and Maintenance CSP-HMI-3 Handbook Maintenance Instructions - Instrument/Electrical/Avionics CSP-COM-5 Component Overhaul Manual CSP-SRM-6 Structural Repair Manual CSP-ISC-7 Illustrated Structures Catalog Service Bulletins, Technical Bulletins, Service Letters Rolls-Royce 250-C47M CD-ROM containing the following: 250-C74M Engine Illustrated Parts catalog, 4 th Ed. Rev.5 250-C74M Operation and Maintenance Manual, 1 st Ed. Rev.6 250-C74M AD Airworthiness Directives 250-C74M Service Bulletin and Service Letter Sets (7) Agreement from manufacturer to supply updates of data in (4), (5) and (6): CAA Form 2171 from MDHI Manager, Certification Department, dated 24/9/03 (The MDHI manuals in (5) and (6) above are supplied to the CAA on their website) (8) Other information: 600N Weight & Balance Documents (Form 600-0078 [8/97]) MDHS Drawing 600N0100 Rev A, Model 600N Helicopter Complete (3 view) MDHS Drawing 600N-CE-4001 N/C Electrical Load Analysis, 600N Helicopter MDHS Drawing 600N90000 Rev E, Options List, Model 600N MDHS Report No.600N-CE-0033 Rev.B, Model 600N Required Equipment List International Certification Model 600N Product Overview FAA MMEL: MDHS Model 369, 500 Series and 600N, Rev.0b, Date: 02/09/98 5. Additional New Zealand Requirements Compliance with the retrospective airworthiness requirements of NZCAR Part 26 is a prerequisite for the grant of a type acceptance certificate. Civil Aviation Rules Part 26 Subpart B - Additional Airworthiness Requirements Appendix B - All Aircraft PARA: REQUIREMENT: MEANS OF COMPLIANCE: B.1 Marking of Doors and Emergency Exits To be determined on an individual aircraft basis B.2 Crew Protection Requirements - CAM 8 Appdx. B #.35 Not Applicable Agricultural Aircraft only Appendix E - Helicopters PARA: REQUIREMENT: MEANS OF COMPLIANCE: E.1 Doors and Exits FAR 27.783 and FAR 27.807(b)(2) E.2.1 Emergency Exit Marking FAR 27.807(b)(3) TAR 4/21B/7 MDHI 600N 4
Compliance with the following additional NZ operating requirements has been reviewed and were found to be covered by either the original certification requirements or the basic build standard of the aircraft, except as noted: Civil Aviation Rules Part 91 Subpart F - Instrument and Equipment Requirements PARA: REQUIREMENT: MEANS OF COMPLIANCE: 91.505 Shoulder Harness if Aerobatic; >10 pax; Flight Training FAR 27.785 See Report 600N-CE-0033 Items A-17 to 19 91.507 Pax Information Signs - Smoking, safety belts fastened Not Applicable Less than ten passenger seats 91.509 Min. VFR (1) ASI (7) Oil Pressure (2) Machmeter (3) Altimeter (4) Magnetic Compass (5) Fuel Contents (6) Engine RPM FAR 27.1303(a) - See Report 600N-CE-0033 Item D-13 N/A No mach no. limitations FAR 27.1303(b) See Report 600N-CE-0033 Item D-10 FAR 27.1303(c) See Report 600N-CE-0033 Item A-05 FAR 27.1305(d) See Report 600N-CE-0033 Item D-07 FAR 27.1305(k) See Report 600N-CE-0033 Items D-08, 11 (8) Coolant Temp (9) Oil Temperature (10) Manifold Pressure (11) Cylinder Head Temp. (12) Flap Position (13) U/c Position (14) Ammeter/Voltmeter FAR 27.1305(h) See Report 600N-CE-0033 Item D-09 N/A Turbine engine FAR 27.1305(j) - See Report 600N-CE-0033 Item D-09 N/A Turbine engine N/A Turbine engine N/A Helicopter N/A Fixed skid undercarriage FAR 27.1351(d) See Report 600N-CE-0033 Item D-12 91.511 Night (1)Turn and Slip (2) Position Lights Available as Option See Rpt. 600N-CE-0033 Item D-21 Fitted as standard See Report 600N-CE-0033 Item X-11, 12 (3) Anti-collision Lights (4) Instrument Lighting Fitted as standard See Report 600N-CE-0033 Item X-10 Fitted as standard See Report 600N-CE-0033 Item D-02 91.513 VFR Communication Equipment KX155 or KY196A NAV/COM available as options See Report 600N-CE-0033 Items D-24 or D-25 91.517 IFR (1) Gyroscopic AH (2) Gyroscopic DI (3) Gyro Power Supply (4) Sensitive Altimeter Available as Option See Rpt. 600N-CE-0033 Item D-18 Available as Option See Rpt. 600N-CE-0033 Item D-19, 20 N/A Not IFR Approved P/N 600N4174-1 fitted as Std. (5) OAT (6) Time in hr/min/sec (7) ASI/Heated Pitot (8) Rate of Climb/Descent Fitted as Standard See Rpt. 600N-CE-0033 Item A-04 Fitted as Standard See Rpt. 600N-CE-0033 Item D-15 N/A Not IFR Approved Available as Option 91.519 IFR Communication and Navigation Equipment N/A Model 600N is only approved for Day/Night VFR 91.523 Emrgcy Eqpmt. (a) More Than 10 pax - First Aid Kits per Table 7 - Fire Extinguishers per Table 8 (b) More than 20 pax - Axe readily acceptable to crew (c) More than 61 pax - Portable Megaphones per Table 9 Operational Requirement Compliance as applicable Fitted as Standard See Report 600N-CE-0033 Item A-03 Not Applicable Less than 20 passenger seats Not Applicable Less than 61 passenger seats 91.529 ELT - TSO C91a after 1/4/97 (or replacement) To be determined on an individual aircraft basis 91.531 Oxygen Indicators - Volume/Pressure/Delivery Operational Requirement Compliance as applicable 91.533 Unpress. A/c >30 min above FL100 - Supplemental for crew, 10% Pax - Therapeutic for 3% of Pax Above FL100 - Supplemental for Crew, Pax, Therapeutic for 1% of Pax, 120l PBE for each crew member Not fitted as standard. (Maximum operating altitude in Flight Manual is 20,000 ft.) 91.541 SSR Transponder and Altitude Reporting Equipment Operational Requirement Compliance as applicable KT-70 or KT-76A TX available as options See Report 600N-CE-0033 Items D-22 or D-23 91.543 Altitude Alerting Device - Turbojet or Turbofan Not Applicable Not turbojet or turbofan powered 91.545 Assigned Altitude Indicator Not Applicable Not approved for IFR operations A.15 ELT Installation Requirements To be determined on an individual aircraft basis Civil Aviation Rules Part 135 Subpart F - Instrument and Equipment Requirements PARA: REQUIREMENT: MEANS OF COMPLIANCE: 135.355 Seating & Restraints Shoulder harness for flight-crew seats Fitted as Standard 135.357 Additional Instruments (Powerplant and Propeller) (1) Model 600N is certificated to FAR Part 27 Amendment 30 dated October 3, 1994 (2) N/A Helicopter 135.359 Night Flight Landing light, Pax compartment Operational Requirement Compliance as applicable 135.361 IFR Operations Speed, Alt, spare bulbs/fuses Not Applicable Not approved for IFR operations 135.363 Emergency Equipment (Part 91.523 (a) and (b)) Operational Requirement Compliance as applicable 135.367 Cockpit Voice Recorder Not Applicable Single-crew helicopter with less than 10 pax 135.369 Flight Data Recorder Not Applicable Less than 10 passenger seats 135.371 Additional Attitude Indicator Not Applicable Not turbo jet or turbofan powered 5 TAR 4/21B/7 MDHI 600N
Attachments The following documents form attachments to this report: Photographs first-of-type example 600N Serial Number RN016 ZK-INT Three-view drawing MD Helicopters Inc. Model 600N Copy of FAA Type Certificate and Data Sheet Number H3WE Sign off David Gill Team Leader Airworthiness Date: 7 November 2003 TAR 4/21B/7 MDHI 600N 6