# TCDS H14EU: Agusta S.p.A.

- Type: Type certificate data sheet
- Status: Current
- Holder: Agusta S.p.A.
- Revision: 2
- Revised: August 20, 1990
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21, Part 29
- Data sheet PDF: https://openairdocs.org/files/sha256/6a/e7/6ae7a28d8cfba7b8c802f920a3b41cbb6f2dbc6fcff4836172c9a1e58390ca0f
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FA1C194ACFB71CF585256714006309B4.0001
- Page: https://openairdocs.org/tcds/H14EU

## Models (2)

As the data sheet lists them.

- AS-61N1
- AS-61N

## What the data sheet says

From the PDF's text layer, line by line; tables lose their columns. The PDF is the record.

```text
Page No. 1 2 3 4 5 6 7 8
Rev No. 2 2 2 2 2 2 2 2
DEPARTMENT OF TRANSPORTATION
FEDERAL AVIATION ADMINISTRATION
H14EU
Revision 2
AGUSTA
AS-61N
AS-61N1
August 20, 1990
TYPE CERTIFICATE DATA SHEET No. H14EU
This data sheet which is part of Type Certificate No. H14EU prescribes conditions and limitations under which the product for
which the Type Certificate was issued meets the airworthiness requirements of the Federal Aviation Regulations.
Type Certificate Holder Agusta S.p. A.
Via Giovanni Agusta 520
21017 Cascina Costa Samarate (Varese)
Italy
I.  Model AS-61N (Amphibious Transport Helicopter - Categories A & B), approved July 17, 1984.
See NOTE 12 for approval at higher gross weights.
Engines 2 General Electric CT58-110-1 (with Hamilton Standard Fuel Control JFC-26).
See NOTE 8 for optional engines
Fuel Aviation Kerosene JP4 or JP5 (General Electric Company Specification Number
D50T1011 or subsequent revisions thereto)
Engine Limits. Sea Level Static - Standard Day
Shaft Power Gas Power Turbine
hp Turbine rpm Gen. rpm Inlet (T5)
Takeoff (5 min.) 1250 21275(112%Nf) 26300(100%Ng) 1250°F(677°C)
One Engine inoperative 1350 21275(112%Nf) 26840(102%Ng) 1300°(704°C)
(2 1/2 min.)
(See Note 5)
One Engine inoperative 1250 21275(112%Nf) 26300(100%Ng) 1250°F(677°C)
30 min.)
(See NOTE 6)
Maximum continuous 1050 21275(112%Nf) 26300(100%Ng) 1175°F(635°C)
Maximum transient 1544°F(840°C)
(2 sec.)
Starting (4 sec.) 1544°F(840°F)
Allowable maximum 23100(122%Nf) 27600(105%Ng)
overspeed (15 sec.)
Takeoff and maximum continuous horsepower ratings are normally obtained at a power
turbine speed of 18,966 r.p.m. (100%Nf).
Total power for two-engine operation is limited to 2300 hp. for takeoff and 2100 hp.
maximum continuous.  (See NOTE 9 for alternate limits).
See NOTE 10 for variation of sea-level static power limits below 59°F.
Rotor Limits Maximum 225 r.p.m.
Minimum 184 r.p.m.
Airspeed Limits Never exceed 150 m.p.h. (130 knots) CAS (See NOTE 12)

H14EU 2
C.G. Range Category A(except (+258.0) to (+276.0) at 19,000 lb.
vertical and edge (+254.0) to (+280.0) at 16,000 lb.
procedures) and or less
Category B:
Category A (+258.0) to (+276.0) at 19,000 lb. or less
(vertical and
edge procedures)
(Above values apply to aircraft with two-tank fuel system.  Refer to Flight Manual for
additional limitations associated with the three-tank fuel system.)
16,000
19,000
254 258 276 280
Station - Inches
Gross
Weight
(Lbs.)
Empty Weight None
C. G. Range
Maximum Weight Category A: 19,000 lb. (See Rotorcraft Flight Manual for lesser maximum
weights for various Category A takeoff and landing procedures).
Category B: 19,000 lb.
Minimum Crew 2 (pilot, copilot)
Maximum Passengers 39, Limited by emergency exit requirements
Maximum Baggage Forward Compartment
Above floor: 650 lb. (+153) (if galley not installed) or
590 lb. (+151) (if galley installed)
Below floor: 1500 lb. (+148)
Aft Compartment (below floor):  1000 lb. (+340)
Baggage Rack:  500 lb. (+370)
Below-floor area of forward compartment should not be loaded in excess of 86.5 lbs. per
square foot and aft compartment in excess of 65 lbs. per square foot, within the total
limits identified above.
The cabin floor, when used for cargo purposes, should not be loaded in excess of 200
lbs. per square foot forward of Station 323 and 150 lbs. per square foot aft of Station
323.
Fuel Capacity 410 gal. (210 gal. at (204), 200 gal. at (306).) (Two-tanks system)
654 gal. (210 gal. at (204), 244 gal. at (265), 200 gal. at (306).) (Three-tank system)
Oil Capacity 5 gal. (181) (2 tanks 2.5 gal. each)

3 H14EU
Rotor Blade and
control Movements. For rigging information, refer to Maintenance Manual
Datum 267.4 in. forward of main rotor centroid
Leveling Means. Leveling plates on sill and upper frame of forward door
Serial Numbers Eligible None.  No aircraft will be produced under the provisions of this type certificate.
Production Provisions None
Certification Basis FAR 21.21 and CAR 7, August 1, 1956, including Amendments 7-1 through 7-4 and
Special Conditions for Turbine Power Rotorcraft in FAA letter to Sikorsky Aircraft,
March 31, 1961.
FAA Administrator telegram, Performance Requirements, dated August 7, 1961.
Amendment 29-3 to Part 29 of the Federal Aviation Regulations, effective February 26,
1968, eliminated the requirements of CAR 7.350(e) by deleting FAR 29.771(e) and FAR
29.772(f).
Models AS-61N:  Exemption No. 186A, dated November 28, 1962.
Model AS-61N at 19,000 to 20,500 lbs. gross weight:  FAR 29.563, FAR 29.801, and
FAR 29.807 of Amendment 12, effective February 1, 1977, to FAR Part 29.
Date of Application to Type Certificate:  November 15, 1983.
Equipment The basic required equipment as prescribed in the applicable airworthiness regulations
(See Certification Basis) must be installed in the helicopter for certification.  In addition,
the following items of equipment are required:
FAA Approved Rotorcraft Flight Manual, Model S-61N Helicopter, (Published No. SA
4045-82), dated September 9, 1963.  Reissued December 17, 1971.  Revised November
27, 1981.
(i) Supplement No. 15, dated September 9, 1977.
Revised September 12, 1979.
(ii) Supplement No. 16, dated October 20, 1977.
Revised October 3, 1980.
There may be approved Rotorcraft Flight Manual (RFM) amendments or supplements
issued after the original type certificate, that are required to operate the helicopter when
additional equipment is installed and/or when certain modifications are embodied.
The helicopter owner/operator should ensure that the correct approved RFM amendments
or supplements are incorporated in the approved RFM, for the approved model.
Service Information Service bulletins, structural repair manuals, aircraft flight manuals, and overhaul and
maintenance manuals, which contain a statement that the document is Registro
Aeronautico Italiano (RAI) approved, are accepted by the FAA and are considered FAA
approved.  These approvals pertain to the type design only.
Import Requirements To be considered eligible for operation in the United States, each aircraft manufactured
under this type certificate must be accompanied by a certificate of airworthiness for
export or certifying statement endorsed by the exporting foreign civil airworthiness
authority which states (in the English language):  This aircraft conforms to its U.S. type
design (type certificate number H14EU) and is in a condition for .safe operation.
The U.S. airworthiness certification basis for aircraft type certificated under FAR Section
21.29 and exported by the country of manufacture is FAR Sections 21.183(c) or
21.185(c).
The U.S. airworthiness certification basis for aircraft type certificated under FAR Section
21.29 exported from countries other than the country of manufacture (e.g., third party
country) is FAR Sections 21.183(d) or 21.183(b).

H14EU 4
NOTE 1. Current weight and balance report including list of required equipment and list of equipment included in
certificated empty weight, and loading instructions when necessary, must be provided for each helicopter at
the time of original certification.
NOTE 2 The following placard must be displayed in front of and in clear view of the pilot:
"THIS HELICOPTER MUST BE OPERATED IN COMPLIANCE WITH THE OPERATING
LIMITATIONS SPECIFIED IN THE FAA APPROVED HELICOPTER FLIGHT MANUAL."
NOTE 3. Information essential to the proper maintenance of the helicopter is contained in the manufacturer's
maintenance manual provided with each helicopter, which specifies that service life limited parts be retired
in accordance with the following:
Model AS-61N
Section 2C.  "List of retireable parts and time limits," of Sikorsky Service Bulletin No. 61B General-1L,
dated December 16, 1981.
NOTE 4. A modification of the Model AS-61N, replacing the amphibious landing gear with a Sikorsky Model S-61L
fixed 1and type gear in accordance with Sikorsky Aircraft Drawing S6107-25112, "Modification Kit,
Sponson to Fixed Landing Gear," has been approved for operations at 20,500 lbs. gross weight.  With this
modification, the Model S-61N is converted to a Transport Helicopter (Categories A and B).
NOTE 5. Engine controls must be set to this rating for Category A vertical operation (Ground-level and Elevated
Heliports) and Category A Elevated Heliport Edge Procedures.
NOTE 6. If take-off power is used in cumulative excess of 5 minutes during any one emergency, the engine must be
inspected in accordance with G.E. Commercial Engine Service Memorandum CT58-110-1, Maintenance No.
19, April 17, 1962.
NOTE 7. The hoist and cargo sling are special purpose equipment and information concerning the operating
limitations for this equipment is contained in the Rotorcraft Flight Manual.
NOTE 8. Optional engines eligible for installation and the applicable limitations:
Engines (2): (a) General Electric CT58-110-2 (with Hamilton Standard Fuel Control JFC-26).
Engine Limits Sea Level Static - Standard Day (Same as CT58-110-1)
(b) General Electric CT58-140-1 (with Hamilton Standard Fuel Control JFC-26)
Engine Limits Sea Level Static - Standard Day
Shaft Power Gas Power Turbine
hp Turbine rpm Gen. rpm Inlet (T5)
Takeoff (5 min.) 1400 21275(112%Nf) 26300(100%Ng) 1285°F(696°C)
One Engine Inoperative 1400 21275(112%Nf) 26300(100%Ng) 1285°F(696°C)
  (30 min.)
  (See NOTE 6)
One Engine inoperative 1500 21275(112%Nf) 26800(102%Ng) 1330°F(721°C)
  (2 1/2 min.)
  (See NOTE 5)
Maximum continuous 1250 21275(112%Nf) 26300(100%Ng) 1220°F(660°C)
Maximum transient 1545°F(840°C)
  (2 sec.)
Starting (2 sec.) 1740°F(950°C)
Allowable maximum 23100(122%Nf) 27600(105%Ng)
  (15 sec.)
Takeoff and maximum continuous horsepower rating are normally obtained at a power turbine speed of
18,966 r.p.m. (100%Nf).

5 H14EU
Total power for two-engine operation is limited to 2300 hp. for takeoff for AS-61N rotorcraft (See NOTE 9
for alternate limits).
Maximum continuous total power for two-engine operation is limited to 2100 hp.
See NOTE 10 for variation of sea-level static power limits below 59°F.
The use of optional engine Model CT58-140-1 is permitted only when main gearbox part numbers S6135-
20600-8, -10, -12 through -15, -18, -19, or -21 through -41 is installed, and left engine cowl, part number
S6130-80142, is modified for increased cooling provisions per Sikorsky Engineering Order No. 65718.
Refer to Rotorcraft Flight Manual for use of engine inlet duct, part number S6130-80179, with oil tank
mounting ring, part number S6132-80205.
(c) General Electric CT58-140-2 (with Hamilton Standard Fuel Control 725725-1).
Engine Limits:  See Level Static - Standard Day
Shaft Power Gas Power Turbine
hp Turbine rpm Gen. rpm Inlet (T5)
Takeoff (5 min.) 1400 21275(112%Nf) 26300(100%Ng) 1285°F(696°C)
One Engine inoperative 1400 21275(112%Nf) 26300(100%Ng) 1285°F(696°C)
  (30 min.)
  (See NOTE 6)
One Engine inoperative 1500 21275(112%Nf) 27200(103.4%Ng) 1397°F(758°C)
  (2 1/2 min.)
  (See NOTE 5)
Maximum continuous 1250 21275(112%Nf) 26300(100%Ng) 1220°F(660°C)
Maximum transient 1545°F(840°C)
  (2 sec.)
Starting (2 sec.) 1740°F(950°C)
Allowable maximum 23100(122%Nf) 27600(105%Ng)
  overspeed (15 sec)
Total power for two-engine operation is limited to 2300 hp. for takeoff for S-61L/N rotorcraft (See Note 9
for alternate limits)
See NOTE 10 for variation of sea-level static power limits below 59°F.
The use of optional engine Model CT58-140-2 is permitted only when main gearbox part numbers S6135-
20600-8, -10, -12 through -15, -18, -19, or -21 through -41 is installed, and left engine cowl, part number
S6130-80142, is modified for increased cooling provisions per Sikorsky Engineering Order No. 65718.
Refer to Rotorcraft Flight Manual for use of engine inlet duct, P/N S6130-80179, wi th oil tank mounting
ring, P/N S6132-80205.
NOTE 9. Two-engine operation limits are increased to 2500 hp. for takeoff when the S6135-20600-12 through -15,
-18, -19, or -23 through -41 main transmission is installed.  The maximum continuous limit of 2100 hp. is
unchanged.
NOTE 10. Below 59°F the sea-level static power limits vary as follows:
CT58-110-1, CT58-110-2 CT58-140-1 CT58-140-2
2 1/2 Min. Heli. No variation - engine is flat
rated at 1350 hp. at 59°F and
below
Increase linearly from 1500
hp. at 59°F to 1545 hp. to
1545 hp. at -65°F.
Increase linearly from 1500
hp. at 59°F to 1560 hp. at -
65°F.
Takeoff and 30 Min. Heli. Increases from 1250 hp. at
59°F to 1350 hp. at +23°F
and flat rated below this
Increases linearly from 1400
hp. at 59°F to 1510 hp. at
22°F and to 1540 hp. at -65°F
Increase linearly from 1400
hp. at 59°F to 1530 hp. at
13°F and to 1560 hp. at -65°F
Max. Continuous Increases linearly from 1050
hp. at 59°F to 1230 hp. at
29°F and flat rated at 1230
hp. at 29°F and below.
Increases linearly from 1250
hp. at 59°F to 1390 hp. at
39°F and flat rated at 1390
hp. at 39°F and below.

H14EU 6
NOTE 11. The maximum rotorcraft-external weight is 22,000 lb. under the condition specified in the Rotorcraft Flight
Manual Supplements, in accordance with FAR 133 operations.
NOTE 12. The AS-61N is approved for operations at gross weights from 19,000 to 20,500 pounds when the following
components are installed:
Main Rotor Blades, P/Ns 61770-20201-055 and subsequent, S6115-20501-041 and subsequent , and S6115-
20601-047, -048, and subsequent.
Tail Rotor Blades, P/N S6117-30101-043 and subsequent.
Engines, G.E. CT58-140-1 and 140-2.
Main Gearbox, P/Ns S6135-20660-12 through -15, -18, -19, -21, through -041 and subsequent.
Bifilar Assembly, P/N S6112-23039-017.
Beam, Pitch Control (Tail Gearbox), P/N S6135-66705-1.
Airspeed Limits
Category A:  Never exceed 140 m.p.h. (122 knots) IAS
Category B:  Never exceed 144 m.p.h. (125 knots) IAS
C.G. Range
(258.0) to (275.6) at 20,500 lbs.
(258.0) to (276.0) at 19,000 lbs.
(254.0) to (280.0) at 16,000 lbs. or less
(Above values apply to aircraft with two-tank fuel system.  Refer to Flight Manual for additional limitations
associated with the three-tank fuel system.)
16,000
19,000
254 258 276 280
Station - Inches
Gross
Weight
(Lbs.)
275.6
20,500
Empty Weight None
C.G. Range.
Maximum Weight
Category A:  20,500 lbs.  (See Rotorcraft Flight Manual for lesser weights for various Category A takeoff
and landing procedures.)
Category B:  20,000 lbs.
Above 19,000 lbs. gross weight, the helicopter is approved for overwater flights and emergency water
landings provided that life saving equipment is installed that meets the requirements of FARs 29.1411,
29.1415, and 29.1561.

7 H14EU
II.  Model AS-61N1 (Transport Helicopter - Categories A & B), approved August 4, 1988.
Engine 2 General Electric CT58-140-1 (with Hamilton Standard Fuel Control JFC-26).
Fuel Aviation Kerosene JP4 or JP5 (General Electric Co. Spec.).
Engine Limits. Sea Level Static - Standard Day
Shaft Power Gas Power Turbine
hp Turbine rpm Gen. rpm Inlet (T5)
Takeoff (5 min.) 1250 21275(112%Nf) 26300(100%Ng) 696°C
One Engine inoperative 1250 21275(112%Nf) 26300(100%Ng) 696°C
  (30 min.)
One Engine inoperative 1350 21275(112%Nf) 26800(102%Ng) 721°C
  (2 1/2 min.)
Maximum Continuous 1050 21275(112%Nf) 26300(100%Ng) 660°C
Maximum transient 820°C
  (2 sec.)
Starting (2 sec) 950°C
Starting interruption 750°C
Allowable maximum 23100(122%Nf) 27600(105Ng)
  overspeed (15 sec.)
Rotor Limits Maximum 225 r.p.m.
Minimum 184 r.p.m.
Airspeed Limits Never exceed speed 131 knots IAS at 100% rotor speed (Nr).
C.G. Range Call (405) 954-6628 for C.G. chart.  (Entered 2/12/97)
Maximum Weight Category "A"  21,000 lbs
Category "B"  20,000 lbs
Minimum Crew 2 (pilot, copilot)
Maximum Passengers 22 or 24 depending on interior arrangement.
Maximum Baggage Aft 170 lbs
Fwd 2 x 163 lbs
Fuel Capacity Total 908,86 gal
Usable 902,02 gal
Unusable 6,84 gal
Oil Capacity 5 gal (2 tanks 2.5 gal. each)
Rotor Blade and For rigging information, refer to Maintenance Manual
Control Movements
Serial Numbers Eligible 6401 and Subs.
Certification Basis CAR 7 and this Part 29 of the Federal Aviation Regulation paragraphs:  29.771, 29.1353,
29.979, 29.783, 29.801, 29.803, 29.805, 29.807, 29.809, 29.811, 29.813, 29.815, 29.831,
29.853, 29.855, 29.607, 29.1141, 29.963, 29.979.
Equipment The basic required equipment as prescribed in the applicable airworthiness regulations
(see Certification Basis), must be installed in the helicopter for certification and on a
permanent basis from that period on.  The Rotorcraft Flight Manual must be in the
helicopter at all times.

H14EU 8
Service Information Service bulletins, structural repair manuals, aircraft flight manuals, and overhaul and
maintenance manuals, which contain a statement that the document is Registro
Aeronautico Italiano (RAI) approved, are accepted by the FAA and are considered FAA
approved.  These approvals pertain to the type design only.
Import Requirements To be considered eligible for operation in the United States, each aircraft manufactured
under this type certificate must be accompanied by a certificate of airworthiness for
export or certifying statement endorsed by the exporting foreign civil airworthiness
authority which states (in the English language):  This aircraft conforms to its U.S. type
design (type certificate number H14EU) and is in a condition for safe operation.
The U.S. airworthiness certification basis for aircraft type certificated under FAR Section
21.29 and exported by the country of manufacture is FAR Sections 21.183(c) or
21.185(c).
The U.S. airworthiness certification basis for aircraft type certificated under FAR Section
21.29 exported from countries other than the country of manufacture (e.g., third party
country) is FAR Sections 21.183(d) or 21.183(b).
NOTES
NOTE 1. Current weight and balance report, including list of required equipment and list of equipment included in the
certificated empty weight, and loading instructions when necessary, must be provided for each helicopter at
the time of original certification.
NOTE 2. The following placard must be displayed in front of and clear view of the pilot:
"THIS HELICOPTER MUST BE OPERATED IN COMPLIANCE WITH THE OPERATING
LIMITATIONS SPECIFIED IN THE FAA APPROVED HELICOPTER FLIGHT MANUAL."
NOTE 3. Information essential to the proper maintenance of the helicopter is contained in the manufacturer's
maintenance manual provided with each helicopter, which specifies that service life limited parts be retired
in accordance with the following:
Model AS-61N1
Chapter IV "Airworthiness Limitations Schedule" of "AS-61N1 Airworthiness Limitation Manual", RAI
approved December 22nd 1987.
...END...
```

## ADs

None name its models.

## Registered aircraft by registry model (OpenAirDocs)

- [Agusta AS61-N](https://openairdocs.org/model/agusta-as61-n): 0 aircraft (registry code 0260303)

## STCs approved under this data sheet (1)

- [STC SA4302NM](https://openairdocs.org/stc/SA4302NM): Installation of Electronics Int'l digital automatic engine analyzer.. Electronics International

---
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