# TCDS E000 96EN: Safran Helicopter Engines S.A.

- Type: Type certificate data sheet
- Status: Historical
- Holder: Safran Helicopter Engines S.A.
- Revision: 0
- Revised: December 23, 2020
- Product: Engine
- Certification basis: Part 21, Part 33, Part 34
- Data sheet PDF: https://openairdocs.org/files/sha256/3d/8e/3d8edc7b3698dbd23067c744ca69bf08800acb1c3abdef36e7e7e1afe0549f60
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F5220AFABEAA3061862586970019A4DF.0001
- Page: https://openairdocs.org/tcds/E000%2096EN

## Models (0)

As the data sheet lists them.



## What the data sheet says

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

```text
LEGEND:  "- -" INDICATES "SAME AS PRECEDING MODEL" 
"---" INDICATES “NOT APPLICABLE" 
 
PAGE 1 2 3 4 5 6 7 8 
   REV. 0 0 0 0 0 0 0 0 
 
 
 
U.S. DEPARTMENT OF TRANSPORTATION 
 
 
FEDERAL AVIATION ADMINISTRATION 
 
TYPE CERTIFICATE DATA SHEET  
TCDS NUMBER  E00096EN 
                                             REVISION: 0 
 
DATE: December 23, 2020 
 
SAFRAN HELICOPTER ENGINES, S. A. 
 
MODELS: 
 
ARRANO 1A 
Engines of models described herein conforming with this data sheet (which is part of Type Certificate Number E00096EN) and 
other approved data on file with the Federal Aviation Administration, meet the minimum standards for use in certificated aircraft in 
accordance with pertinent aircraft data sheets and applicable portions of the Federal Aviation Regulations, provided they are 
installed, operated, and maintained as prescribed by the approved manufacturer's manuals and other approved instructions. 
 
TYPE CERTIFICATE (TC) HOLDER: Safran Helicopter Engines, S. A. 
    64510 Bordes 
    France 
 
TYPE The ARRANO 1 series turboshaft engines have an annular air inlet integrating inlet guide vanes, a 
two-stage centrifugal compressor driven by a single-stage high pressure turbine, a reverse flow 
combustion chamber and a single-stage low pressure turbine (power turbine) driving a reduction 
gearbox located at the front of the engine and an exhaust pipe. The high pressure (gas generator) 
shaft drives the accessory gearbox. The engine is controlled by a Full Authority Digital Electronic 
Control (FADEC). 
   
  
I. MODELS ARRANO 1A 
RATINGS (See NOTE 1), shaft hp (kW)  
Maximum continuous 990 (738) 
Takeoff (5 minutes) 1141 (851) 
30-minute All Engines Operating (AEO ) 1141 (851) 
Continuous One Engine Inoperative (OEI) 1239 (924) 
2 min OEI 1356 (1011) 
30 sec OEI 1423 (1061) 
PRINCIPAL DIMENSIONS, inches (mm)  
Length 48 (1219) 
Width 24.5 (623.2) 
Height 32.2 (817) 
CENTER OF GRAVITY Refer to Installation Manual 
WEIGHT - Completely equipped with 
EECU, pounds (kg) 
381.4 (173.5)

TCDS  E00096EN Page 2 of 8 
 
 
 
APPROVED FUELS Refer to Operation Manual or Installation Manual for approved fuel and additive specifications. 
 
APPROVED OILS Refer to Operation Manual or Installation Manual for approved oil specifications. 
 
EQUIPMENT The equipment necessary to operate the engine and that is not included in the Engine Type Design 
Definition is defined in the applicable Installation and Operating Manual. 
 
CERTIFICATION BASIS 
 
ARRANO 1A 
 
 
Airworthiness Standards: 14 CFR, Part 33, effective February 1, 1965, as amended by 33-1 
through 33-34 
 
Special condition: 
• 33-20-01-SC, 30 min AEO power rating 
 
An Equivalent Level of Safety Finding has been made for the following regulation: 
• 14 CFR 33.27(c) and 33.27(f), Partial Shaft Excursion for Overspeed Evaluation 
(documented in ELOS Memo TC04141EN-E-P-4) 
 
The European Aviation Safety Agency (EASA) originally type certificated this engine on June 18, 
2019. The FAA validated this product under U.S. Type Certificate Number E00096EN, on 
December 23, 2020. 
 
   APPLICATION   
MODEL  DATE             ISSUED                     DELETED 
ARRANO 1A August 29, 2019  December 23, 2020   
 
  
CONTROL SYSTEM Dual channel electronic engine control system  
 
FUEL CONTROL Refer to Installation Manual 
DRIVE SHAFT TYPE Refer to Installation Manual 
IGNITION High energy ignition generator with dual output, 2 Igniter plugs and cables 
STARTING The automatic starting sequence is ensured by the Engine Electronic Control Unit using the aircraft 
starter generator.

TCDS  E00096EN Page 3 of 8 
 
  
NOTES 
 
NOTE  1. ENGINE RATINGS 
The performance values specified are defined in the Installation and Operating Manual and correspond to 
minimum values at 109% N2 under the following conditions: 
- Uninstalled performance ; 
- Worst aged engine ; 
- No temperature, pressure or flow angle distortion at air inlet ; 
- Power measured on engine test bed with reference exhaust ; 
- Sea Level Static, ISA  condition ; 
- No back pressure downstream of the exhaust pipe ; 
- No air bleed ; 
- No electrical power off-take ; 
- No power drawn by any accessories other than those required for engine operation; 
- Fuel heating value at 43 136 kJ/kg ; 
- Humidity considered is the reference value of 0.0069 kg/kg dry air humidity mixing ratio, which 
corresponds to 65% relative humidity at sea level ISA condition ; 
- Torque limits presented in NOTE 20. 
 
NOTE  2. 
 
TEMPERATURE LIMITS 
MAXIMUM EXHAUST GAS TEMPERATURE (T45 °C) 
Measured with thermocouples at the gas generator turbine outlet 
 
ARRANO 1A  
Takeoff                                                     912 
Maximum continuous                   886 
30-minute AEO                    912 
Continuous OEI                    914 
2 min OEI     957 
30 sec OEI    991 
AEO Transient (20 second limit)   934 
Starting (unlimited)                                     800 
Starting (maximum over-temperature):                   850 
APU mode    665 
 
 FUEL TEMPERATURE (°C) 
Measured at engine inlet 
 
ARRANO 1A  
Maximum operating temperature: +57°C 
 
Minimum fuel temperature for operating, starting and restart envelope:  The highest temperature between      
-45°C and Freezing point temperature defined for the applicable fuel standard.  
Refer to the Installation and Operating Manual for detailed definition and limitations of normal fuels usage. 
 
The minimum fuel temperature is subject, for certain fuels, to mandatory use of anti-icing additive for 
temperatures below -30°C. Refer to the Installation and Operating Manual for further details.

TCDS  E00096EN Page 4 of 8 
 
NOTE  2. 
continued 
OIL TEMPERATURE (°C) 
Measured at the oil filter outlet. 
ARRANO 1A  
Maximum operating temperature: 115°C 
 
Minimum oil temperature for starting: 
-36°C for oils with viscosity rating of 5 cSt 
-45°C for oils with viscosity rating of 3 cSt  
 
Minimum oil temperature before applying power: 
• Without anti-icing additives in fuel, the minimum oil temperature before applying 
power is +20 °C. The authorization of applying power is given by the flag “powering 
up not allowed” set to 0 ; 
• With anti-icing additives in fuel, the minimum oil temperature before applying power 
is 0 °C. 
During the oil warm-up period, the engine shall be run in APU mode or in IDLE mode, or in 
FLIGHT mode with the minimum collective pitch position. 
 
Refer to Installation and Operating Manual for detailed oil temperature limitations 
 
NOTE  3. PRESSURE LIMITS 
FUEL 
ARRANO 1A  
Detailed information about fuel pressures depending on atmospheric conditions and fuel specifications are 
provided in the Installation and Operating Manual. 
OIL 
ARRANO 1A  
Normal oil pressure during operation: between 58 PSI (400 kPa) (relative pressure) and 130.5 PSI (900 kPa) 
(relative pressure). 
 
Minimum and Maximum level warnings are functions of N1 and oil temperature 
NOTE  4. 
 
ACCESSORY DRIVE PROVISIONS 
ARRANO 1A 
 
ACCESSORY / 
DRIVE 
Direction* 
of     
Rotation 
Nominal RPM Maximum 
Steady 
State Power 
HP 
Maximum 
Torque at 
Overload (in-lb) 
Maximum Static 
Overhung Moment 
Allowable for 
Accessories (in-lb) 
Starter-Generator CW 11,727 (100% N1) 17.4 708.1 221.3 
 
* CW = REFERENCE FACING ENGINE ACCESSORY PAD 
 CLOCKWISE  
 
 
NOTE  5. 
 
MODEL DESCRIPTION 
ARRANO 1A: Base model 
 
NOTE  6. 
 
 
ACCESSORIES, COMPONENTS, OR SYSTEM ASSEMBLIES, WITH AIRCRAFT LEVEL 
REQUIREMENTS, PROVIDED AS PART OF ENGINE TYPE DESIGN 
Refer to Installation and Operating Manual 
 
NOTE  7. AIRCRAFT ACCESSORIES, COMPONENTS, OR SYSTEM ASSEMBLIES INSTALLED ON THE 
ENGINE BUT ARE NOT PROVIDED AS PART OF ENGINE TYPE DESIGN 
Refer to Installation and Operating Manual 
 
NOTE  8.  SPECIAL ANTI-ICING OR DE-ICING REQUIREMENTS 
 
Refer to NOTE 2 and the Installation and Operating Manual for requirements for the use of fuel anti-icing 
additives.

TCDS  E00096EN Page 5 of 8 
 
NOTE  9. ENGINE MOUNT SYSTEM PROVISIONS 
Refer to Installation and Operating Manual 
 
NOTE 10.  POWER BOOST, INJECTION OR AUGMENTATION SYSTEMS 
Not Applicable 
 
NOTE 11.  
 
SPECIAL INSTALLATION REQUIREMENTS 
 
 
AIR INTAKE REQUIREMENTS 
The engine was certified for ingestion of bird, hail, rain and snow based on the capability of the aircraft inlet 
design as defined in the installation manual. The following inlets have been approved for use with this engine: 
ECP H160.001893 and ECP H160.000900  
 
INSTALLATION CONDITIONS 
ARRANO 1A EECU shall be installed outside of a designated fire zone and outside of a zone that might lead to 
overheat conditions. Corresponding installation assumptions are defined in the Installation and Operating 
Manual. 
Fire detection is not part of the Engine design and is under Helicopter manufacturer responsibility. 
 LIGHTNING AND ELECTROMAGNETIC INTERFERENCES PROTECTION 
Qualified environmental conditions of the ARRANO 1A control system components, including EMI and HIRF, 
are detailed in the Installation and Operating Manual. 
 TIME LIMITED DISPATCH 
ARRANO 1A has been approved for Time Limited Dispatch. The maximum rectification period for each 
dispatchable state is specified in the Airworthiness Limitations Section of the Maintenance Manual. The TLD 
dispatchable fault configurations are defined in the Installation and Operating Manual. (See NOTE 15) 
 EMISSIONS STANDARDS 
The following emissions standards promulgated in 14 CFR Part 34, Amendment 5A, effective October 23, 2013 
have been complied with for the ARRANO 1A: 
 
• Fuel Venting Emission Standards:  14 CFR 34.11 
 OVERSPEED PROTECTION 
ARRANO 1A is equipped with a power turbine overspeed shutdown device. Refer to the Installation and 
Operating Manual for additional details. 
NOTE 12. MANUFACTURER’S SERVICE BULLETINS OR OTHER INSTRUCTIONS COVERING MATTERS OF 
INTEREST 
Each of the documents listed below must state that it is approved by the European Aviation Safety Agency 
(EASA) or approved under EASA.21J.070. Any such documents including those approved under a 
delegated authority, are accepted by the FAA and are considered FAA approved. 
 
• Service bulletins, 
• Structural repair manuals, 
• Vendor manuals, 
• Aircraft flight manuals, and 
• Overhaul and Maintenance Manuals,  
• Design changes. 
 
These approvals pertain to the type design only. 
 
NOTE 13.  SPECIAL OPERATING PROCEDURES 
 OEI TRAINING MODE 
ARRANO 1A EECU features an OEI TRAINING mode for training crews in the event of engine failure. Refer 
to the applicable Installation and Operating Manual for additional details. 
 
 APU MODE 
ARRANO 1A engine has APU mode capability. Use conditions of APU mode are defined in Installation and 
Operating Manual.

TCDS  E00096EN Page 6 of 8 
 
NOTE 14.  SPECIAL REPAIR OR OVERHAUL LIMITATIONS 
Not Applicable 
NOTE 15. APPLICABLE INSTALLATION, MAINTENANCE AND OVERHAUL MANUALS 
 
MANUALS REQUIRED BY 14 CFR PART 33.5: 
 
ARRANO 1A 
Installation and 
Operating Manual 
Performance Manual 
X3561A0022 X3561A0012 
 
Installation and Operating Manual includes System Description and Time Limited Dispatch Summary. 
 
The manuals listed above have been accepted or approved per 14 CFR 33.5 
 
MANUALS REQUIRED BY 14 CFR PART 33.4: 
 
ARRANO 1A 
Maintenance Manual Overhaul Manual Maintenance Manual 
Trouble Shooting Book 
Time Limited Dispatch 
Summary 
X3561A4602 X3561A5002 X3561A4612 X3561A4602 
 
 
 
 
 
Instructions for continued airworthiness for the ARRANO engines are incomplete at the time of certification. 14 
CFR 21.50(b) requires the holder of this type certificate to ensure these instructions are complete and furnished 
prior to when the  aircraft incorporating these engines are issued standard airworthiness certificates or 
delivered/returned to service, whichever occurs later. The aircraft must not be issued a standard airworthiness 
certificate or approved for return to service until the ICA are complete and determined acceptable. 
Service Letters and 
Service Bulletins 
  
Refer to the SL and 
SB directory 
  
NOTE  16.  IMPORT REQUIREMENTS: 
To be considered eligible for installation on U.S. registered aircraft, each new engine to be exported to the 
United States with EASA airworthiness approval shall have EASA Form 1, Authorized Release Certificate. The 
EASA  Form 1 should state that the engine conforms to the type design approved under the U.S. Type 
Certificate E00096EN, is in a condition for safe operation and has undergone a final operational check. 
Additional guidance is contained in FAA Advisory Circular 21-23, Airworthiness Certification of Civil Aircraft, 
Engines, Propellers and Related Products Imported into the United States. 
NOTE  17. LIFE LIMITED PART INFORMATION: 
Life-limited components are listed in Chapter 05 of the engine Maintenance Manual. 
NOTE  18. MILITARY MODEL INFORMATION:   
Not applicable.

TCDS  E00096EN Page 7 of 8 
 
NOTE  19. PERMISSIBLE ENGINE ROTOR AND OUTPUT SHAFT SPEEDS: 
 
GAS GENERATOR SPEED (PERCENT N1) 
 
ARRANO 1A   
100% N1 = 44,139 rpm 
 
In-flight and APU mode Minimum speeds: 
 
Idle Mode (1) Idle with PT 
locked 
APU Mode Flight Mode (2) 
57% 57% 59.8% 69.8 
(1) This speed corresponds to the minimum stabilized N1 speed in IDLE mode with N2=80% 
(2) This speed corresponds to the minimum stabilized N1 speed in FLIGHT mode with N2=100% 
 
In-flight maximum speeds, All Engine Operative (*): 
 
Take-off 
(5 minutes) 
30-minute 
AEO 
Maximum 
Continuous 
AEO transient 
(20 seconds) 
104% 104% 103% 105.5% 
 
In-flight maximum speeds, One Engine Inoperative: 
 
30-second 
OEI 
2-minute 
OEI 
Continuous 
OEI 
107.8% 105.6% 104.5% 
  
 
POWER TURBINE SPEED (PERCENT N2) 
 
ARRANO 1A   
100% N2 = 34,767 rpm (power turbine) 
100% N2 = 7,939 rpm on the power drive. 
 
In flight Minimum Speeds: 
 
Stabilized Transient (20 seconds) 
90% 70% 
 
Operation with turbine locked is only authorized in APU mode and for engine starting 
 
In flight Maximum Speeds: 
 
Stabilized 
109% 
 
A Maximum Inadvertent Overspeed of 115% has been certified for the ARRANO 1A model. This corresponds 
to the maximum N2 speed for which inadvertent occurrence of up to 20 seconds has been demonstrated not to 
require rejection of the engine from service or maintenance action (other than to correct the cause).

TCDS  E00096EN Page 8 of 8 
 
NOTE 20.  MAXIMUM OUTPUT/PROPELLER SHAFT TORQUE LIMITS (N.m) 
 
Maximum torque, All Engines Operative (1): 
 
Take-off  
(5 minutes)  
30-minute 
AEO 
Maximum 
Continuous 
AEO transient 
(20 seconds) (2) 
940 940 816 940 
 
Maximum torque, One Engine Inoperative (2): 
 
30 second OEI 2 minute OEI Continuous OEI 
1327 1176 1033 
 
 
(1) For AEO ratings, torque values presented above correspond to the maximum torque validated for the 
engine. 
(2) For OEI ratings and AEO transient 20s, engine torque values are limited by torque toppings sent by the 
helicopter on ARINC frame to the EECU in order to protect the helicopter main gearbox. Values presented 
above correspond to the maximum value of the torque topping range authorized by the EECU for each power 
rating.  
For further details refer to Installation and Operating Manual. 
 
NOTE 21.  MAXIMUM PERMISSIBLE P3 AIR BLEED FROM THE OUTLET OF THE 2ND STAGE 
CENTRIFUGAL COMPRESSOR  
 
Maximum air mass flow: 
P3 air bleed extraction for helicopter use is limited by the section of the P3 extraction restrictor. The maximum 
possible extraction is 205 g/s and corresponds to Take-Off power at ISA Sea Level conditions. 
For any other operating point, refer to Installation and Operating Manual 
Power loss due to air bleed: Refer to Installation and Operating Manual. 
 
NOTE 22.  ROTOR DISK INTEGRITY AND ROTOR BLADE CONTAINMENT (WHERE SPECIAL 
REQUIREMENTS APPLY) 
 
Not applicable. 
NOTE 23. SOFTWARE: 
The ARRANO 1A EECU software has been validated in accordance with the requirements of DO-178B 
guidelines for a level A software. 
 
----END----
```

## ADs

None name its models.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.
