SECTION 1 : GE90-76B, -77B, -85B, -90B, -94B
GEAE GE90 engines Page 3 TCDS IM.E.002 Issue 2, 16 March 2004 variants -76B, 77B, 85B, 90B, 94B Section 1
SECTION 1 : GE90-76B, -77B, -85B, -90B, -94B
I. General
1. Type/Variants: GE90-76B, GE90-85B, GE90-90B, GE90-77B, GE90-94B 2. Type Certificate Holder: GE Aircraft Engines 1, Neumann Way Cincinnati Ohio 45215-6310, USA 3. Manufacturer: GE Aircraft Engines 4. JAA Validation Application Date: GE90-76B GE90-85B GE90-90B GE90-77B GE90-94B 24 Jan. 1992 24 Jan. 1992 14 Nov. 1995 Apr. 10, 1996 14 Dec. 1999 5. JAA Validation Reference Date: 2 Feb. 1992 6. JAA Validation Recommendation Date: GE90-76B GE90-85B GE90-90B GE90-77B GE90-94B 03 Nov. 1995 03 Nov. 1995 22 Jan. 1997 22 Jan. 1997 08 Nov. 2000 7. EASA Certification Date: GE90-76B GE90-85B GE90-90B GE90-77B GE90-94B 03 Nov. 1995 03 Nov. 1995 23 Jan. 1997 23 Jan. 1997 08 Nov. 2000 In accordance with article 2 paragraph 3 (a)(i) of EU Commission Regulation EC 1702/2003, the EASA Type Certificate for these engines is granted based on: - the CAA United Kingdom validation letter issued following the JAA recommendation for the GE90-76B, GE90-85B, GE90-90B and GE90-77B engine models.
- the DGAC France Type Certificate issued following the JAA recommendation for the GE90-94B engine model.
II. Certification Basis
1. FAA Certification Basis details: see FAA TCDS E00049EN 2. EASA Certification Basis: The EASA Certification Basis is the JAA Joint Certification Basis described in paragraph 3.
GEAE GE90 engines Page 4 TCDS IM.E.002 Issue 2, 16 March 2004 variants -76B, 77B, 85B, 90B, 94B Section 1 3. JAA Joint Certification Basis: 3.1 JAA Airworthiness Requirements: JAR-E Change 8 (dated 4 May 1990) plus Orange Paper E/91/1 (dated 27 May 1991, which embodied NPA-E-8, E-14, and E-15) 3.2 JAA Special Conditions: 3.2.1 GE90-76B, GE90-85B,GE90-90B,GE90-77B • SC1 : JAR-E800 Bird Ingestion : Special condition based on the new identified 2.5 lb medium bird and 8 lb large bird threats.
• SC2 : JAR-E790 Ingestion of Rain and Hail : Special condition based on the new identified rain and hail threats.
3.2.2 GE90-94B • SC 1: JAR-E 800 Bird Ingestion: Special condition based on the NPAE-20 dated 3 December 1999.
• SC2 : JAR-E 790 Inclement weather : Special condition requesting compliance with JAR-E 790 Chg. 10.
3.3 JAA Exemptions: None.
3.4 JAA Equivalent Safety Findings: 3.4.1 GE90-76B • JAR-E 740 (d)(1) - Time to accelerate from 10% to 95% T/O thrust • JAR-E 840(a)(1)(2) or (3) - Rotor Integrity • JAR-E 640(b)(1) - Static Pressure Tests • JAR-E 740(f) - Speed limitations at Maximum Continuous rating.
• JAR-E 740 (f)(4)(iii) - 60s transient Take off EGT • JAR-E-890 and E650 (b)(2) Thrust Reverser Tests 3.4.2 GE90-85B,GE90-90B,GE90-77B • JAR-E 740 (d)(1) - Time to accelerate from 10% to 95% T/O thrust • JAR-E 840(a)(1)(2) or (3) - Rotor Integrity • JAR-E 640(b)(1) - Static Pressure Tests • JAR-E-890 and E650 (b)(2) Thrust Reverser Tests 3.4.3 GE90-94B : • JAR-E 740 (d)(1) - Time to accelerate from 10% to 95% T/O thrust • JAR-E 840(a)(1)(2) or (3) - Rotor Integrity • JAR-E 640(b)(1) - Static Pressure Tests • JAR-E-890 - Thrust Reverser Tests • JAR-E 780 - Tests in Ice Forming Conditions 3.5. JAA Environmental Standards: • Emissions and Fuel Venting : ICAO Annex 16, Volume II, 2nd Edition, 1993.
III.Technical Characteristics
1. Type Design Definition: As defined by the applicable GE90-76B, GE90-85B, GE90-90B, GE90-77B or GE90-94B Model List.
GEAE GE90 engines Page 5 TCDS IM.E.002 Issue 2, 16 March 2004 variants -76B, 77B, 85B, 90B, 94B Section 1 2. Description: Dual Rotor, axial flow, high bypass ratio turbofan. The 10-stage compressor is driven by a 2-stage high pressure turbine. The single stage fan and the 3-stage low pressure compressor are driven by a 6-stage low pressure turbine. The engine includes the starter and the engine mount and does not include the thrust reverser.
3. Equipment: Approved Equipment are included in Item III. 1.
4. Dimensions: Overall Length 7283 mm (286,9 inches) Overall width 3871 mm (152,4 inches) Overall Height 3952 mm (155,6 inches) 5. Dry Weight: 7892.5 kg (17400 lb.) See note 1.
6. Ratings: Rating GE90-76B GE90-77B GE90-85B GE90-90B GE90-94B Take-off 360,617 363,420 395,313 418,133 432,811 Thrust, kN (lb) (5 minutes) (81070) (81700) (88870) (94000) (97300) Maximum 335,529 335,529 361,329 402,920 402,919 Continuous (75430) (75430) (81830) (90580) (90580) Take-off 32.8 32.8 30 30 30 Flat rating (91) (91) (86) (86) (86) ambient temperature, Maximum 25 25 25 25 25 °C (°F) Continuous (77) (77) (77) (77) (77) See notes 2 and 3.
7. Control System: The engine is equipped with a Full Authority Digital Engine Control (FADEC) system.
Configuration Type Box: see notes 5 and 6 GE90-76B GE90-77B, GE90-85B, GE90-90B GE90-94B 320-837-701-0 n/a 320-839-501-0 n/a 320-892-101-0 n/a 320-892-201-0 n/a 320-846-701-0 n/a 320-892-601-0 n/a 320-915-201-0 n/a 320-921-501-0 320-921-501-0 8. Fluids 8.1 Fuel: The approved fuels and additives must conform to GE Specification D50TF2. Certain fuels such as those produced to CIS Specification GOST 10227-86 and PRC Specification RP# meet the requirements of D50TF2 by means of the specification. The engine will operate with a mixture of fuels or additives conforming to GE Specification D50TF2.
8.2 Oil: The engine oil must be a synthetic type conforming to GE Specification D50TF1, Class B. For approved brand of oil refer to GE90 Service Bulletin 79-001.
GEAE GE90 engines Page 6 TCDS IM.E.002 Issue 2, 16 March 2004 variants -76B, 77B, 85B, 90B, 94B Section 1 9. Aircraft Accessory Drives: DRIVE PAD Rotation Gear Ratio Horsepower Shear Maximum Facing to Continuous Torque** Overhung Gearbox Pad Core Speed Pad Rating N. m (in-lb) Moment kW (HP) N.m (in-lb) IDG (120 KVA) CCW (*) 0.7974 181.3 (243) 1130 - 1187 226.0 (2000) (10000 - 10500) Hydraulic Pump CCW 0.3783 63.5 (85) 480 - 548 26.0 (230) (4250 - 4850) VSCF/PMG CCW 2.4126 43.3 (58) 362 - 395 45.2 (400) Generator (3200 - 3500) IDG Overload 226.8 KVA (304 HP) for 5 minutes per 1000 hours of operation Limits 302.9 KVA (406 HP) for 5 seconds per 1000 hours of operation 373.0 KVA (500 HP) electrical fault VSCF/PMG 64.9 KVA (87 HP) for 5 minutes per 1000 hours of operation Overload limits 86.5 KVA (116 HP) for 5 seconds per 1000 hours of operation 95.5 KVA (128 HP) electrical fault (*) Counter Clockwise (**)Shear torque capability is a function of operator requirement. Consult GE Aircraft Engines for installed capability.
"KVA" stands for "1000 Volt Ampères" 10. Maximum Permissible Air Bleed Extraction: Allowable Bleed Limits (Percent) Stage 4 Stage 7 Stage 10 Total Below 23 percent N1K 7.8 1.8 13.6 15.4 23 to 31 percent N1K 7.6 1.6 12.8 14.4 31 to 57.4 percent N1K 7.4 1.3 12.6 13.9 57.4 to 80 percent N1K 7.2 1.3 12.6 13.9 80 to 96.8 percent N1K 7.0 1.3 6.5 8.3 Above 96.8 percent N1K 6.5 1.3 6.5 7.8 "N1K" is defined as N1/( √ Tamb / √ 288 K) IV.Operational Limits: 1. Temperature Limits: o o 1.1 Exhaust Gas Temperature (EGT), C ( F): GE90-76B with GE90-76B with GE90-77B, GE90- GE90-94B configuration type configuration type 85B, GE90-90B box 320-837-701-0 box 320-839-501-0 See note 5 (untrimmed values) Take-off* 975 (1787) 1005 (1841) 1030 (1885) 1030 (1886) (5 Minutes) * 60 seconds 980 (1795) 1010 (1850) n/a n/a maximum transient Maximum 925 (1697) 955 (1751) 985 (1804) 1015 (1859) Continuous Starting (Maximum 750 (1382) 750 (1382) 750 (1382) 750 (1382)** on Ground) Starting (Maximum 825 (1517) 825 (1517) 825 (1517) 825 (1517) in Flight) ** 40 seconds start n/a n/a n/a 825 (1517) EGT exceedance EGT is measured at the inlet of the LP Turbine See note 3.
GEAE GE90 engines Page 7 TCDS IM.E.002 Issue 2, 16 March 2004 variants -76B, 77B, 85B, 90B, 94B Section 1 o o 1.2 Oil Temperature, C ( F): Continuous Operation: 124 (255) Transient (15 minutes Maximum): 135 (275) 2. Maximum Permissible rotor Speeds GE90-76B GE90-77B, GE90-85B, GE90-90B, GE90-94B Low Pressure Rotor (N1)* 2465 (109.0) 2465 (109.0) Take-off rpm (%) High Pressure Rotor 10705 (114.7) 10918 (117.0) (N2)** Low Pressure Rotor (N1)* n/a, see note 11 2465 (109.0) Maximum Continuous rpm (%) High Pressure Rotor n/a, see note 11 10918 (117.0) (N2)** * : 100 percent N1 is 2261,5 RPM ** : 100 percent N2 is 9332,0 RPM 3. Pressure Limits: 3.1 Fuel Pressure Limits at Engine Pump Inlet: The fuel pressure at the engine pump inlet must be between a minimum limit of not less than the greater of true vapour pressure plus 48,3 kPa (7.0 psig) or ambient plus 48,3 kPa (7.0 psig) and a maximum limit of 482,6 kPa (70 psig).
3.2 Oil Pressure Limits: Low Pressure (differential): 69 kPa (10 psid). See note 4.
4. Installation Assumptions: The installation assumptions are quoted in the Engine Installation Manual GEK 100704.
5. Dispatch Limitations: Time Limited Dispatch Criteria : Criteria pertaining to the dispatch and maintenance requirements for engine control systems are specified in the GEAE Document GEK 103084 and the airworthiness limitations of the GE90 Engine Manual GEK 100700 which define the various configurations and maximum operating intervals.
V. Operating and Service Instructions Engine Installation Manual GEK 100704 Engine Operating Instructions GEK 100703 Engine Maintenance Manual D633W101-GEC, Part 1 and Part 2 Engine Overhaul Manual GEK100700 Service Bulletins
VI. Notes
Note 1: Dry weight includes basic engine accessories and optional equipment as listed in the manufacturer's engine specification.
Note 2: The engine ratings are based on dry sea-level static ICAO Standard Atmospheric Conditions, no installation effects, no customer bleed, no power extraction, and unity ram recovery. The engine ratings specified are the minimum guaranteed and are based on calibrated stand performance with the inlet, exhaust, and nacelle configured as specified in the Installation Manual GEK 100704.
GEAE GE90 engines Page 8 TCDS IM.E.002 Issue 2, 16 March 2004 variants -76B, 77B, 85B, 90B, 94B Section 1 Note 3: Take off rating is limited to a continuous period of not more than 10 minutes in the event of one engine inoperative.
Note 4: During negative-g operation only, it is permissible to operate below minimum oil pressure (69 kPa, differential pressure (10 psid) indicated) for a maximum of 15 seconds. See GE90 Operating Instructions, GEK 100703, Section 8.
Note 5: GE90-76B engines with configuration type box number 320-839-501-0 must incorporate the HP/LP turbine hardware and associated changes per GE Service Bulletin 72-169. The FADEC incorporates a 30°C shunt so that the indicated EGT limits remain unchanged at 980°C/975°C/925°C (trimmed values).
GE90 engines with configuration type box part numbers 320-892-101-0 or 320-892-201-0 must incorporate the PT25 extended wedge ice shield per GE90 Service Bulletin 77-008 and must incorporate FADEC software P/N 1853M99P06 (version 9.1.9.7) or later, per GE90 Service Bulletin 73.040.
Note 6: GE 90 models with configuration type box numbers 320-837-701-0, 320-839-501-0, 320-892-101-0, 320- 892-201-0, 320-846-701-0, 320-892-601-0, and 320-915-201-0, have a minimum permissible N2 RPM of 6066 RPM for in flight operation during icing conditions.
GE 90 models with configuration type box number 320-921-501-0 have a minimum permissible N2 RPM of 6310 RPM for in flight operation during icing conditions.
Note 7: For ground operation in icing conditions, requirements and limitations are specified in the GE 90 Operating Instructions Manuel GEK 100703.
Note 8: Life limits established for critical rotating components are published in Chapter 5 of the GE90 Engine Overhaul Manual, GEK 100700.
Note 9: Power setting, power checks, and control of engine thrust output in all operations are based on GE engine charts referring to Fan Speed (N1). Speed sensors are included in the engine assembly for this purpose.
Note 10: The GE90 variants incorporate the following general characteristics: GE90 variants Characteristics GE90-76B Basic Model GE90-77B Same as GE90-76B except for improved HPT/LPT flowpath and higher takeoff thrust rating.
GE90-85B Same as GE90-76B except for higher thrust ratings. Rating plug change GE90-90B Same as GE90-77B except for higher thrust ratings. Rating plug change GE90-94B Same as GE90-77B except for improved 3D Aero HPC and higher thrust ratings.
Rating plug change - The GE90-75B model has been deleted from the FAA TC on July 24, 1995 - The GE90-92B model has been deleted from the FAA TC on June 26, 2000 Note 11: GE90-76B model : according to the equivalent safety finding in II.7 , there are no limits for maximum continuous N1 and N2 speeds. For information purpose only : the values demonstrated during the FAR 33.87 test were N1 = 2390 rpm and N2 = 10590 rpm.
Note 12: The engine is approved for use with Boeing thrust reverser part number 315W1000.
Note 13: The loads resulting from a fan blade release at the inner flow path line are specified in the Engine Installation Manual. The loads for a fan blade release at the outer most retention groove have been determined and are available from GE.
Note 14: Repair of fan blade composite material in the root section of the fan blade up to the inner annulus flow path line is not permitted. Fan blades with non-serviceable conditions existing on metallic components, erosion coating or wear pads of the fan blade should be referred to GE Aircraft Engine for disposition.
SECTION 2 : GE90-110B1, -113B, -115B
GEAE GE90 engines Page 9 TCDS IM.E.002 Issue 2, 16 March 2004 variants -110B1, -113B, -115B Section 2
SECTION 2 : GE90-110B1, -113B, -115B
I. General
1. Type/Variants: GE90-110B1, -113B, -115B 2. Type Certificate Holder: GE Aircraft Engines 1, Neumann Way Cincinnati Ohio 45215-6310, USA 3. Manufacturer: GE Aircraft Engines 4. JAA Validation Application Date: GE90-110B1 GE90-113B GE90-115B 8 May 2002 2 Jan. 2001 2 Jan. 2001 5. JAA Validation Reference Date: 27 Jun. 2000 6. JAA Validation Recommendation Date: GE90-110B1 GE90-113B GE90-115B 18 Dec. 2003 18 Dec. 2003 18 Dec. 2003 7. EASA Certification Date: GE90-110B1 GE90-113B GE90-115B 18 Dec. 2003 18 Dec. 2003 18 Dec. 2003 The EASA Type Certificate for these engines is granted based on the JAA recommendation and in accordance with article 2 paragraph 4 (d) of EU Commission Regulation EC 1702/2003.
II. Certification Basis
1. Reference Application Date for FAA Certification: 27 Jun. 2000 2. FAA Certification Date (FAA Type Certificate Data Sheet No. E00049NE): GE90-110B1 GE90-113B GE90-115B 30 Jul. 2003 30 Jul. 2003 30 Jul. 2003 GEAE GE90 engines Page 10 TCDS IM.E.002 Issue 2, 16 March 2004 variants -110B1, -113B, -115B Section 2 3. FAA Certification Basis: Federal Aviation Regulation (FAR) Part 33, effective February 1, 1965, including Amendments 33-1 through 33-20 inclusive, Special Condition Number SC-33-ANE-08-NE, Grant of Exemption Number 7953, Exemption to §33.73(b).
All GE90 engines approved under Type Certificate No. E00049NE comply with the fuel venting emissions and exhaust emissions requirements of FAR 34 effective September 10, 1990.
4. EASA Certification Basis The EASA Validation basis is the JAA Joint Certification basis described in paragraph 5 below.
5. JAA Joint Certification Basis: 5.1 JAA Airworthiness Requirements: JAR-E Change 10 (dated 15 August 1999) 5.2 JAA Special Conditions: • SC1 : Medium and large Birds Ingestion • SC2 : Programmable Logic device • SC3 : Fan Blade Containment 5.3 JAA Exemptions: None 5.4 JAA Equivalent Safety Findings: • JAR-E 800(b)(3) – "Additional assesment", as of Special Condition 1 5.5 "Elect to comply" JAA Airworthiness Standards • JAR-E 640 Pressure Loads as of amendment 11 • JAR-E 840 Rotor Integrity as of amendment 11 • JAR-E 510 Safety Analysis as of amendment 12 5.6 JAA Environmental Standards: • Emissions and Fuel Venting : ICAO Annex 16, Volume II, 2nd Edition, 1993.
III.Technical Characteristics
1. Type Design Definition: As defined by the applicable GE90-110B1, GE90-113B, GE90-115B Model List.
2. Description: Dual Rotor, axial flow, high bypass ratio turbofan. The 9-stage compressor is driven by a 2-stage high pressure turbine. The single stage fan and the 4-stage low pressure compressor are driven by a 6-stage low pressure turbine. The engine includes the starter and the engine mount and does not include the thrust reverser.
3. Equipment: Approved Equipment are included in Item III. 1.
GEAE GE90 engines Page 11 TCDS IM.E.002 Issue 2, 16 March 2004 variants -110B1, -113B, -115B Section 2 4. Dimensions: Overall Length 7281 mm (286,67 inches) Overall width 3769 mm (148.38 inches) Overall Height 3926 mm (154.56 inches) 5. Dry Weight: 8761.1 kg (19315 lb.). See note 1.
6. Ratings: See notes 2 and 3 .
Rating GE90-110B1 GE90-113B GE90-115B Take-off 492,685 505,006 513,947 Thrust, kN (lb) (5 minutes) (110,760) (113,530) (115,540) Maximum 489,304 489,304 489,304 Continuous (110,000) (110,000) (110,000) Take-off 33 30 30 Flat rating ambient (92) (86) (86) temperature, °C (°F) Maximum 25 25 25 Continuous (77) (77) (77) 7. Control System: The engine is equipped with a Full Authority Digital Engine Control (FADEC) system.
Configuration Type Box: 390-850-001-0.
8. Fluids 8.1 Fuel: The approved fuels and additives must conform to GE Specification D50TF2. Certain fuels such as those produced to CIS Specification GOST 10227-86 and PRC Specification RP# meet the requirements of D50TF2 by means of the specification. The engine will operate with a mixture of fuels or additives conforming to GE Specification D50TF2.
8.2 Oil: The engine oil must be a synthetic type conforming to GE Specification D50TF1, Class B. For approved brand of oil refer to GE90 Service Bulletin 79-001.
9. Aircraft Accessory Drives: DRIVE PAD Rotation Gear Ratio Horsepower Shear Maximum Facing to Continuous Torque(**) Overhung Gearbox Pad Core Speed Pad Rating N. m (in-lb) Moment kW (HP) N.m (in-lb) IDG (120 KVA) CCW (*) 0.7974 181.3 (243) 1130 - 1187 226.0 (2000) (10000 - 10500) Hydraulic Pump CCW 0.3783 63.5 (85) 480 - 548 26.0 (230) (4250 - 4850) VSCF/PMG CCW 2.4126 43.3 (58) 362 - 395 45.2 (400) Generator (3200 - 3500) IDG Overload 226.8 KVA (304 HP) for 5 minutes per 1000 hours of operation Limits 302.9 KVA (406 HP) for 5 seconds per 1000 hours of operation 373.0 KVA (500 HP) electrical fault VSCF/PMG 64.9 KVA (87 HP) for 5 minutes per 1000 hours of operation Overload limits 86.5 KVA (116 HP) for 5 seconds per 1000 hours of operation 95.5 KVA (128 HP) electrical fault (*) Counter Clockwise (**) Shear torque capability is a function of operator requirement. Consult GE Aircraft Engines for installed capability. 100 percent core speed is 9,332 RPM "KVA" stands for "1000 Volt Ampères" GEAE GE90 engines Page 12 TCDS IM.E.002 Issue 2, 16 March 2004 variants -110B1, -113B, -115B Section 2 10. Maximum Permissible Air Bleed Extraction: Allowable Bleed Limits (Percent) Stage 4 Stage 7 Stage 9 Total Below 27 percent N1K 7.6 1.5 11.2 12.7 At 51 percent N1K 7.6 1.5 11.5 13.0 At 80 percent N1K 7.6 1.5 12.0 13.5 At 88 percent N1K 7.6 1.5 11.0 12.5 At 93 percent N1K 7.6 1.5 8.0 9.1 Above 93 percent N1K 7.6 1.5 7.3 9.1 "N1K" is defined as N1/( √ Tamb / √ 288 K) IV.Operational Limits: 1. Temperature Limits: o o 1.1 Exhaust Gas Temperature (EGT), C ( F): GE90-110B1, -113B, -115B Take-off* (5 minutes, see note 3) 1090 (1994) *: 30 seconds maximum transient 1095 (2003) Maximum Continuous 1050 (1922) Starting (Maximum on Ground) 750 (1382) Starting (Maximum in Flight) 825 (1517) EGT is measured at the inlet of the LP Turbine o o 1.2 Oil Temperature, C ( F): Continuous Operation: 132 (270) Transient (15 minutes maximum): 143 (290) 2. Maximum Permissible rotor Speeds GE90-110B1, -113B, -115B Low Pressure Rotor (N1)* 2602 (110.5) Take-off rpm (%) High Pressure Rotor (N2)** 11292 (121) Low Pressure Rotor (N1)* 2602 (110.5) Maximum Continuous rpm (%) High Pressure Rotor (N2)** 11292 (121) * : 100 percent N1 is 2355.0 RPM ** : 100 percent N2 is 9332,0 RPM 3. Pressure Limits: 3.1 Fuel Pressure Limits at Engine Pump Inlet: The fuel pressure at the engine pump inlet must be between a minimum limit of not less than the greater of true vapour pressure plus 48,3 kPa (7.0 psig) or ambient plus 48,3 kPa (7.0 psig) and a maximum limit of 482,6 kPa (70 psig).
3.2 Oil Pressure Limits: Low Pressure (differential): 69 kPa (10 psid). See Note 4.
4. Installation Assumptions: The installation assumptions are quoted in the Engine Installation Manual GEK 109995.
GEAE GE90 engines Page 13 TCDS IM.E.002 Issue 2, 16 March 2004 variants -110B1, -113B, -115B Section 2 5. Dispatch Limitations: Time Limited Dispatch Criteria : Criteria pertaining to the dispatch and maintenance requirements for engine control systems are specified in the Airworthiness Limitations section of the GE90-100 Engine Overhaul Manual GEK109993.
V. Operating and Service Instructions
Engine Installation Manual GEK109995 Engine Operating Instructions GEK109994 Engine Maintenance Manual D633W101-GEC, Part 1 and Part 2 Engine Overhaul Manual GEK109993 Illustrated Parts Catalogue GEK110005 Service Bulletins -
VI. Notes
Note 1: Dry weight includes basic engine accessories and optional equipment as listed in the manufacturer's engine specification.
Note 2: The engine ratings are based on dry sea-level static ICAO Standard Atmospheric Conditions, no installation effects, no customer bleed, no power extraction, and unity ram recovery. The engine ratings specified are the minimum guaranteed and are based on calibrated stand performance with the inlet, exhaust, and nacelle configured as specified in the Installation Manual GEK 109995.
Note 3: Take off rating is limited to a continuous period of not more than 10 minutes in the event of one engine inoperative.
Note 4: During negative-g operation only, it is permissible to operate below minimum oil pressure (69 kPa, differential pressure (10 psid) indicated) for a maximum of 15 seconds. See GE90 Operating Instructions, GEK109994, Section 8.
Note 5: For ground operation in icing conditions, requirements and limitations are specified in the GE 90 Operating Instructions Manual GEK109994.
Note 6: Life limits established for critical rotating components are published in Chapter 5 of the GE90 Engine Overhaul Manual, GEK109993.
Note 7: Power setting, power checks, and control of engine thrust output in all operations are based on GE engine charts referring to Fan Speed (N1). Speed sensors are included in the engine assembly for this purpose.
Note 8: The GE90-100 series variants incorporate the following general characteristics: GE90 variants Characteristics GE90-110B1 Same as GE94B except for changes in fan, LPC, HPC, HPT and LPT hardware, rotor speeds and temperature ratings.
GE90-113B Same as GE90-110B1 except for higher Take-off thrust rating. Rating plug change.
GE90-115B Same as GE90-110B1 except for higher Take-off thrust rating. Rating plug change.
Note 9: The engine is approved for use with Boeing thrust reverser part number.
315W1298-1 Left Engine Left Hand 315W1298-2 Left Engine Right Hand 315W1298-3 Right Engine Left Hand 315W1298-4 Right Engine Right Hand Note 10: The loads resulting from a fan blade release at the inner flow path line are specified in the Engine Installation Manual.
Note 11: Repair of fan blade composite material in the root section of the fan blade up to the inner annulus flow path line is not permitted. Fan blades with non-serviceable conditions existing on metallic components, erosion coating or wear pads of the fan blade should be referred to GE Aircraft Engines for disposition.
GEAE GE90 engines Page 14 TCDS IM.E.002 Issue 2, 16 March 2004 variants -110B1, -113B, -115B Section 2 Intentionally left blank