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Appendix C -- Criteria for Category A
Available versions for ERULES-1963177438-14251
ED Decision 2023/001/R
found in: CS-27 Amdt 10 - Small Rotorcraft (Feb 2023)
ED Decision 2021/016/R
found in: CS-27 Amdt 9 - Small Rotorcraft (Dec 2021)
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Appendix C — Criteria for Category A ED Decision 2023/001/R C27.1 *General.* A small multi-engine rotorcraft may not be type certificated for category A operation unless it meets the design installation and performance provisions contained in this appendix in addition to the provisions of this CS-27. C27.2 *Applicable CS*-*29 paragraphs*. The following paragraphs of CS-29 must be met in addition to the requirements of this CS: <table border="0" cellpadding="0" cellspacing="0" width="609"><tr><td valign="top" width="145"><p>29.45(a) and (b)(2)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>General. </p></td></tr><tr><td valign="top" width="145"><p>29.49(a) </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Performance at minimum operating speed. </p></td></tr><tr><td valign="top" width="145"><p>29.51 </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Take-off data: General. </p></td></tr><tr><td valign="top" width="145"><p>29.53 </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Take-off: Category A. </p></td></tr><tr><td valign="top" width="145"><p>29.55 </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Take-off decision point: Category A. </p></td></tr><tr><td valign="top" width="145"><p>29.59 </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Take-off path: Category A. </p></td></tr><tr><td valign="top" width="145"><p>29.60 </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Elevated heliport take-off path: Category A. </p></td></tr><tr><td valign="top" width="145"><p>29.61 </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Take-off distance: Category A. </p></td></tr><tr><td valign="top" width="145"><p>29.62 </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Rejected take-off: Category A. </p></td></tr><tr><td valign="top" width="145"><p>29.64 </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Climb: General. </p></td></tr><tr><td valign="top" width="145"><p>29.65(a) </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Climb: AEO. </p></td></tr><tr><td valign="top" width="145"><p>29.67(a) </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Climb: OEI. </p></td></tr><tr><td valign="top" width="145"><p>29.75 </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Landing: General. </p></td></tr><tr><td valign="top" width="145"><p>29.77 </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Landing decision point: Category A. </p></td></tr><tr><td valign="top" width="145"><p>29.79 </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Landing: Category A. </p></td></tr><tr><td valign="top" width="145"><p>29.81 </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Landing distance (ground level sites): Category A. </p></td></tr><tr><td valign="top" width="145"><p>29.85 </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Balked landing: Category A. </p></td></tr><tr><td valign="top" width="145"><p>29.87(a) </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Height-velocity envelope. </p></td></tr><tr><td valign="top" width="145"><p>29.547(a) and (b) </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Main and tail rotor structure. </p></td></tr><tr><td valign="top" width="145"><p>(29.571 </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Fatigue evaluation of structure.)</p><p>AC Material only: AC 29-2C Change 4 dated 1 May 2014, Paragraph AC29.571A.b(2).</p></td></tr><tr><td valign="top" width="145"><p>29.861(a) </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Fire protection of structure, controls and other parts. </p></td></tr><tr><td valign="top" width="145"><p>29.901(c) </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Powerplant: Installation. </p></td></tr><tr><td valign="top" width="145"><p>29.903(b), (c) and (e)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Engines. </p></td></tr><tr><td valign="top" width="145"><p>29.908(a) </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Cooling fans. </p></td></tr><tr><td valign="top" width="145"><p>29.917(a), (b) and (c)(1)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Rotor drive system: Design. (29.917(a) replaces 27.917(d))</p></td></tr><tr><td valign="top" width="145"><p>29.927(c)(1) and (c)(2)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Additional tests.</p></td></tr><tr><td valign="top" width="145"><p>29.953(a)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Fuel system independence.</p></td></tr><tr><td valign="top" width="145"><p>29.1027(a)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Transmission and gearboxes: General.</p></td></tr><tr><td valign="top" width="145"><p>29.1027(a)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Transmission and gearboxes: General.</p></td></tr><tr><td valign="top" width="145"><p>29.1045(a)(1), (b), (c), (d) and (f)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Climb cooling test procedures.</p></td></tr><tr><td valign="top" width="145"><p>29.1047(a)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Take-off cooling test procedures.</p></td></tr><tr><td valign="top" width="145"><p>29.1181(a)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Designated fire zones: Regions included.</p></td></tr><tr><td valign="top" width="145"><p>29.1187(e)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Drainage and ventilation of fire zones.</p></td></tr><tr><td valign="top" width="145"><p>29.1189(c)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Shutoff means.</p></td></tr><tr><td valign="top" width="145"><p>29.1191(a)(l)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Firewalls.</p></td></tr><tr><td valign="top" width="145"><p>29.1193(e)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Cowling and engine compartment covering.</p></td></tr><tr><td valign="top" width="145"><p>29.1195(a) and (d)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Fire extinguishing systems (one shot).</p></td></tr><tr><td valign="top" width="145"><p>29.1197</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Fire extinguishing agents.</p></td></tr><tr><td valign="top" width="145"><p>29.1199</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Extinguishing agent containers.</p></td></tr><tr><td valign="top" width="145"><p>29.1201</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Fire extinguishing system materials.</p></td></tr><tr><td valign="top" width="145"><p>29.1305(a)(6) and (b)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Powerplant instruments.</p></td></tr><tr><td valign="top" width="145"><p>29.1309(b)(1)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Equipment, systems and installations.</p></td></tr><tr><td valign="top" width="145"><p>29.1323(c)(1)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Airspeed indicating system.</p></td></tr><tr><td valign="top" width="145"><p>29.1331(b)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Instruments using a power supply.</p></td></tr><tr><td valign="top" width="145"><p>29.1337(e)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Chip detection system</p></td></tr><tr><td valign="top" width="145"><p>29.1351(d)(2)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Additional requirements for Category A rotorcraft </p><p>(Operation with the normal electrical power generating system inoperative.)</p></td></tr><tr><td valign="top" width="145"><p>29.1585(h)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p> Operating Procedures.</p></td></tr><tr><td valign="top" width="145"><p>29.1587(a)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Performance information.</p></td></tr></table> If certification with ditching provisions is requested by the applicant, the following requirements of CS-29 must also be met in addition to the ones of this CS: <table border="0" cellpadding="0" cellspacing="0" width="608"><tr><td valign="top" width="145"><p>29.801(c) and (g) </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="439"><p>Ditching.</p></td></tr><tr><td valign="top" width="145"><p>29.803(c)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="439"><p>Emergency evacuation.</p></td></tr><tr><td valign="top" width="145"><p>29.809(j)(2)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="439"><p>Emergency exit arrangement.</p></td></tr><tr><td valign="top" width="145"><p>29.811(h)(1) </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="439"><p>Emergency exit marking.</p></td></tr><tr><td valign="top" width="145"><p>29.1415(d) </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="439"><p>Ditching equipment.</p></td></tr></table> If certification of an emergency flotation system alone is requested by the applicant, the following requirements of CS 29 must also be met in addition to the ones of this CS: <table border="0" cellpadding="0" cellspacing="0" width="608"><tr><td valign="top" width="146"><p>29.801(g) </p></td><td valign="top" width="23"><p>—</p></td><td valign="top" width="439"><p>Ditching.</p></td></tr></table> (See AC 29-2C Change 7 dated 4 February 2016 and AMC material to CS-29) [Amdt No: 27/2] [Amdt No: 27/4] [Amdt No: 27/5] [Amdt No: 27/6] [Amdt No: 27/9]
Appendix C — Criteria for Category A ED Decision 2021/016/R C27.1 *General.* A small multi-engine rotorcraft may not be type certificated for category A operation unless it meets the design installation and performance provisions contained in this appendix in addition to the provisions of this CS-27. C27.2 *Applicable CS*-*29 paragraphs*. The following paragraphs of CS-29 must be met in addition to the requirements of this CS: <table border="0" cellpadding="0" cellspacing="0" width="609"><tr><td valign="top" width="145"><p>29.45(a) and (b)(2)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>General. </p></td></tr><tr><td valign="top" width="145"><p>29.49(a) </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Performance at minimum operating speed. </p></td></tr><tr><td valign="top" width="145"><p>29.51 </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Take-off data: General. </p></td></tr><tr><td valign="top" width="145"><p>29.53 </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Take-off: Category A. </p></td></tr><tr><td valign="top" width="145"><p>29.55 </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Take-off decision point: Category A. </p></td></tr><tr><td valign="top" width="145"><p>29.59 </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Take-off path: Category A. </p></td></tr><tr><td valign="top" width="145"><p>29.60 </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Elevated heliport take-off path: Category A. </p></td></tr><tr><td valign="top" width="145"><p>29.61 </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Take-off distance: Category A. </p></td></tr><tr><td valign="top" width="145"><p>29.62 </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Rejected take-off: Category A. </p></td></tr><tr><td valign="top" width="145"><p>29.64 </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Climb: General. </p></td></tr><tr><td valign="top" width="145"><p>29.65(a) </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Climb: AEO. </p></td></tr><tr><td valign="top" width="145"><p>29.67(a) </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Climb: OEI. </p></td></tr><tr><td valign="top" width="145"><p>29.75 </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Landing: General. </p></td></tr><tr><td valign="top" width="145"><p>29.77 </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Landing decision point: Category A. </p></td></tr><tr><td valign="top" width="145"><p>29.79 </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Landing: Category A. </p></td></tr><tr><td valign="top" width="145"><p>29.81 </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Landing distance (ground level sites): Category A. </p></td></tr><tr><td valign="top" width="145"><p>29.85 </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Balked landing: Category A. </p></td></tr><tr><td valign="top" width="145"><p>29.87(a) </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Height-velocity envelope. </p></td></tr><tr><td valign="top" width="145"><p>29.547(a) and (b) </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Main and tail rotor structure. </p></td></tr><tr><td valign="top" width="145"><p>(29.571 </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Fatigue evaluation of structure.)</p><p>AC Material only: AC 29-2C Change 4 dated 1 May 2014, Paragraph AC29.571A.b(2).</p></td></tr><tr><td valign="top" width="145"><p>29.861(a) </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Fire protection of structure, controls and other parts. </p></td></tr><tr><td valign="top" width="145"><p>29.901(c) </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Powerplant: Installation. </p></td></tr><tr><td valign="top" width="145"><p>29.903(b), (c) and (e)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Engines. </p></td></tr><tr><td valign="top" width="145"><p>29.908(a) </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Cooling fans. </p></td></tr><tr><td valign="top" width="145"><p>29.917(a), (b) and (c)(1)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Rotor drive system: Design. (29.917(a) replaces 27.917(d))</p></td></tr><tr><td valign="top" width="145"><p>29.927(c)(1) and (c)(2)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Additional tests.</p></td></tr><tr><td valign="top" width="145"><p>29.953(a)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Fuel system independence.</p></td></tr><tr><td valign="top" width="145"><p>29.1027(a)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Transmission and gearboxes: General.</p></td></tr><tr><td valign="top" width="145"><p>29.1027(a)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Transmission and gearboxes: General.</p></td></tr><tr><td valign="top" width="145"><p>29.1045(a)(1), (b), (c), (d) and (f)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Climb cooling test procedures.</p></td></tr><tr><td valign="top" width="145"><p>29.1047(a)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Take-off cooling test procedures.</p></td></tr><tr><td valign="top" width="145"><p>29.1181(a)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Designated fire zones: Regions included.</p></td></tr><tr><td valign="top" width="145"><p>29.1187(e)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Drainage and ventilation of fire zones.</p></td></tr><tr><td valign="top" width="145"><p>29.1189(c)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Shutoff means.</p></td></tr><tr><td valign="top" width="145"><p>29.1191(a)(l)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Firewalls.</p></td></tr><tr><td valign="top" width="145"><p>29.1193(e)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Cowling and engine compartment covering.</p></td></tr><tr><td valign="top" width="145"><p>29.1195(a) and (d)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Fire extinguishing systems (one shot).</p></td></tr><tr><td valign="top" width="145"><p>29.1197</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Fire extinguishing agents.</p></td></tr><tr><td valign="top" width="145"><p>29.1199</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Extinguishing agent containers.</p></td></tr><tr><td valign="top" width="145"><p>29.1201</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Fire extinguishing system materials.</p></td></tr><tr><td valign="top" width="145"><p>29.1305(a)(6) and (b)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Powerplant instruments.</p></td></tr><tr><td valign="top" width="145"><p>29.1309(b)(2)(i) and (d)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Equipment, systems and installations.</p></td></tr><tr><td valign="top" width="145"><p>29.1323(c)(1)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Airspeed indicating system.</p></td></tr><tr><td valign="top" width="145"><p>29.1331(b)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Instruments using a power supply.</p></td></tr><tr><td valign="top" width="145"><p>29.1337(e)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Chip detection system</p></td></tr><tr><td valign="top" width="145"><p>29.1351(d)(2)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Additional requirements for Category A rotorcraft </p><p>(Operation with the normal electrical power generating system inoperative.)</p></td></tr><tr><td valign="top" width="145"><p>29.1585(h)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p> Operating Procedures.</p></td></tr><tr><td valign="top" width="145"><p>29.1587(a)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="441"><p>Performance information.</p></td></tr></table> If certification with ditching provisions is requested by the applicant, the following requirements of CS-29 must also be met in addition to the ones of this CS: <table border="0" cellpadding="0" cellspacing="0" width="608"><tr><td valign="top" width="145"><p>29.801(c) and (g) </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="439"><p>Ditching.</p></td></tr><tr><td valign="top" width="145"><p>29.803(c)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="439"><p>Emergency evacuation.</p></td></tr><tr><td valign="top" width="145"><p>29.809(j)(2)</p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="439"><p>Emergency exit arrangement.</p></td></tr><tr><td valign="top" width="145"><p>29.811(h)(1) </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="439"><p>Emergency exit marking.</p></td></tr><tr><td valign="top" width="145"><p>29.1415(d) </p></td><td valign="top" width="24"><p>—</p></td><td valign="top" width="439"><p>Ditching equipment.</p></td></tr></table> If certification of an emergency flotation system alone is requested by the applicant, the following requirements of CS 29 must also be met in addition to the ones of this CS: <table border="0" cellpadding="0" cellspacing="0" width="608"><tr><td valign="top" width="146"><p>29.801(g) </p></td><td valign="top" width="23"><p>—</p></td><td valign="top" width="439"><p>Ditching.</p></td></tr></table> (See AC 29-2C Change 7 dated 4 February 2016 and AMC material to CS-29) [Amdt No: 27/2] [Amdt No: 27/4] [Amdt No: 27/5] [Amdt No: 27/6] [Amdt No: 27/9]