- Holder
- Pratt & Whitney RTX Corporation (formerly United Technologies Corporation)
- Revision
- 9
- Revised
- January 28, 2026
- Status
- Current
- Product
- Engine
- Certification basis
- Part 33, Part 34
- Models
- 8
- Registered
- 2 aircraft
The release keeps the latest revision of each data sheet. Model names are as the data sheet lists them.
On this page
Models · 8
| Model | Also known as | Note |
|---|---|---|
| PW4077D | Formerly Pratt & Whitney Division | |
| PW4090-3 | ||
| PW4077 | Formerly Pratt & Whitney Division | |
| PW4084D | Formerly Pratt & Whitney Division | |
| PW4084 | Formerly Pratt & Whitney Division | |
| PW4074 | Formerly Pratt & Whitney Division | |
| PW4074D | Formerly Pratt & Whitney Division | |
| PW4090 | Formerly Pratt & Whitney Division |
Airworthiness directives · 31
ADs whose products are models on this data sheet, matched by model and maker.
AD 2026-17-08Turbine Engine Compressor SectionAD 2026-09-02Turbine Engine Compressor SectionAD 2023-22-02Turbine Engine Combustion Section
See all 31 ADsRegistered aircraft
Registry models that point at this data sheet, with their registered aircraft.
Pratt & Whitney PW40902 registered aircraftPratt & Whitney PW40740 registered aircraftPratt & Whitney PW4074D0 registered aircraftPratt & Whitney PW40770 registered aircraftPratt & Whitney PW4077D0 registered aircraftPratt & Whitney PW40840 registered aircraftPratt & Whitney PW4084D0 registered aircraftPratt & Whitney PW4090-30 registered aircraft
STCs approved under this data sheet · 1
What the data sheet says
From the PDF’s text layer, line by line: tables lose their columns. The PDF is the record.
*
PAGE 1 2 3 4 5 6 7
REV. 9 9 9 9 9 9 9
LEGEND: "- -" INDICATES "SAME AS PRECEDING MODEL"
"---" NOT APPLICABLE
NOTE: ALL PAGES ARE REFORMATTED. SIGNIFICANT CHANGES IF ANY,
ARE BLACK-LINED IN THE LEFT MARGIN.
U.S. DEPARTMENT OF TRANSPORTATION
FEDERAL AVIATION ADMINISTRATION
TYPE CERTIFICATE DATA SHEET E46NE
TCDS NUMBER E46NE
REVISION: 9
DATE: January 28, 2026
PRATT & WHITNEY
MODELS:
PW4074 PW4074D
PW4077
PW4077D
PW4084
PW4084D
PW4090
PW4090-3
Engines of models described herein conforming with this data sheet (which is part of Type Certificate Number E46NE) 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: Pratt & Whitney
RTX Corporation (formerly United Technologies Corporation)
400 Main Street
East Hartford, Connecticut 06118
I. MODELS PW4074 PW4077 PW4084
TYPE Axial airflow, dual-spool, turbofan, single- stage fan, 6-stage low-pressure compressor,
11-stage high pressure compressor, annular combustor, 2-stage high-pressure turbine,
7-stage low-pressure turbine.
RATINGS (See NOTE 5)
Static thrust at sea level, lbs.
Takeoff, Dry 5 Minutes (See
NOTE 18)
Maximum Continuous
77,440
69,600
79,960
70,990
86,760
70,990
COMPONENTS
Fuel Metering unit
Fuel pump and filter
Electronic engine control (EEC)
Ignition
Exciter
Ignitors
Collins Aerospace (formerly Hamilton Standard) Model Number JFC-131-4
Argo-Tech Model 723300
Collins Aerospace (formerly Hamilton Standard) EEC 170 P/N 812460-All
Unison Industries P/N 10-621630-1
Auburn P/N 0270408
Champion P/N AA1345-1
TCDS E46NE PAGE 2
I. MODELS (CONT.) PW4074 PW4077 PW4084
COMPONENTS (CONT.)
EEC alternator
Stator
Rotor
Fuel distribution valve
Station 2.5 bleed actuator
Stator vane actuator
PT2/TT2 probe
Unison (formerly B.F. Goodrich) P/N 430073
Unison (formerly B.F. Goodrich) P/N 430074
Collins Aerospace (formerly Hamilton Standard) P/N GTA40
Collins Aerospace (formerly Hamilton Standard) P/N GTA42
Collins Aerospace (formerly Hamilton Standard) P/N GTA41
Rosemount P/N 154 GT
PRINCIPAL DIMENSIONS
Room Temperature
Length (flange to flange)
Nominal diameter (fan case)
Maximum radial projection (oil
tank)
190.423 (in.)
119.000 (in.)
69.946 (in.)
WEIGHT (DRY) 15,095
Weight of basic engine includes PW supplied engine build-up components.
CENTER OF GRAVITY (IN)
Axial: Engine station
Vertical: Relative to engine
Lateral: Relative to centerline
117.2 + 1.0
-1.4 + 0.5
-0.6 + 0.5
II. MODELS PW4074D PW4077D PW4084D PW4090 PW4090-3
TYPE Axial airflow, dual-spool, turbofan, single- stage fan, 6-stage low-pressure compressor,
11-stage high pressure compressor, annular combustor, 2-stage high-pressure turbine,
7-stage low-pressure turbine.
RATINGS (See NOTE 5)
Static thrust at sea level, lbs.
Takeoff, Dry 5 Minutes (See
NOTE 18)
Maximum Continuous
77,440
69,600
79,960
70,990
86,760
70,990
91,790
74,950
91,790
(See Note 19)
74,950
COMPONENTS
Fuel Metering unit
Fuel pump and filter
Electronic engine control (EEC)
Ignition
Exciter
Ignitors
Collins Aerospace (formerly Hamilton Standard) Model Number JFC-131-4
Argo-Tech Model 723300
Collins Aerospace (formerly Hamilton Standard) EEC 170 P/N 816200-All
Unison Industries P/N 10-621630-2
Auburn P/N 0270307
Champion P/N AA72S
COMPONENTS (CONT.)
EEC alternator
Stator
Rotor
Fuel distribution valve
Station 2.5 bleed actuator
Stator vane actuator
PT2/TT2 probe
Unison (formerly B.F. Goodrich) P/N 430073
Unison (formerly B.F. Goodrich) P/N 430074
Collins Aerospace (formerly Hamilton Standard) P/N GTA40-1
Collins Aerospace (formerly Hamilton Standard) P/N GTA42-2
Collins Aerospace (formerly Hamilton Standard) P/N GTA41-1
Rosemount P/N 154GT
TCDS E46NE PAGE 3
II. MODELS (CONT.) PW4074D PW4077D PW4084D PW4090 PW4090-3
PRINCIPAL DIMENSIONS
Room Temperature
Length (flange to flange)
Nominal diameter (fan case)
Maximum radial projection (oil
tank)
190.423 (in.)
119.000 (in.)
69.946 (in.)
WEIGHT (DRY) 15,741
Weight of basic engine includes PW supplied engine build-up
components.
CENTER OF GRAVITY (IN)
Axial: Engine station
Vertical: Relative to engine
Lateral: Relative to centerline
119.0+1.0
-1.2+0.5
-0.5+0.5
FUEL See NOTE 9
OIL See NOTE 10
CERTIFICATION BASIS FAR 33 effective February 1, 1965, as amended by 33-1 through 33-15
Type Certificate Number E46NE
MODEL APPLICATION ISSUED WITHDRAWN
PW4074 DEC 10, 1990 APR 29, 1994
PW4077 DEC 10, 1990 APR 29, 1994
PW4084 DEC 10, 1990 APR 29, 1994
PW4074D MAR 17, 1998 MAR 27, 1998
PW4077D JUN 19, 1996 JUN 28, 1996
PW4084D JUN 19, 1996 JUN 28, 1996
PW4090 JUL 28, 1994 JUN 28, 1996
PW4090-3 JAN 22, 1999 APR 8, 1999
PW4090D JUL 23, 1998 JUL 24, 1998 JAN 28, 2026
PW4098 JUL 25, 1995 JUL 24, 1998 JAN 28, 2026
PRODUCTION BASIS
(All Models)
Production Certificate Number 2
NOTES
NOTE 1. Maximum Permissible Operating Speeds for Engine Rotors
PW4074/PW4077/ PW4077D/PW4084D/
PW4084 PW4090/PW4074D/
PW4090-3
Low pressure rotor (N1), RPM 2,990 3,045 High pressure rotor (N2), RPM 10,850 10,850 -transient (25 seconds)
- s t e a d y s t a t e
Minimum Permissible Operating Speeds for Engine Rotors
Low pressure rotor (N1), RPM 590 (In-flight) High pressure rotor (N2), RPM 5,900 (In-flight and on ground operation)
TCDS E46NE PAGE 4
NOTE 2. Maximum Permissible Temperatures
For in-flight starts which result in exceedance of the ground start limit, the maximum temperature and duration must
be recorded for maintenance action, per the PW4000-112 series Engine Maintenance Manual.
External engine component maximum limiting temperatures are specified in the Installation and Operating Manual,
Section 4.3.
Turbine Exhaust gas temperature
PW4074/PW4077/ PW4077D/PW4084D/
PW4084 PW4090/PW4074D/
PW4090-3
At takeoff (5 minutes, see NOTE 18) 625 oC/1157oF 675 oC/1247oF
Maximum continuous 605 oC/1121oF 650 oC/1202oF
At start-up
Ground 535 oC/995oF 535 oC/995oF
In-flight 625 oC/1157oF 675 oC/1247oF
Oil outlet temperature
Continuous operation 163 oC/325oF 163 oC/325oF
Transient operation (20 min.) 177 oC/350oF 177 oC/350oF
NOTE 3. Fuel Pressure Limits:
At inlet to engine system pump, not less than 3.25 psi above the true vapor pressure of the fuel and not greater than
70 psig with a vapor/liquid ratio of zero.
Oil Pressure Limits:
Minimum 70 psig
Temporary interruption of oil pressure associated with negative "G" operation is limited to 30 seconds maximum.
Normal oil pressure will be restored rapidly once the negative "G" effect has been eliminated. There is no maximum
oil pressure limit.
NOTE 4. Maximum Permissible Air Bleed: 11.4 pounds/second airflow - PW4074, PW4077 and PW4084
10.7 pounds/second airflow - PW4077D, PW4084D, PW4090, PW4090-3,
a n d P W 4 0 7 4 D
NOTE 5. The Sea Level Static Ratings ar e ideal and are based on ICAO Standard Atmosphere conditions, a Pratt & Whitney
ideal inlet, no fan or compressor air bleed or load on accessory drives, an exhaust system having no internal pressure
or external scrubbing losses, and fan duct and primary nozzle velocity coefficients equal to 1.0.
TCDS E46NE PAGE 5
NOTE 6. The following accessory drive provisions are incorporated:
TORQUE (lb-in)
DRIVE
ROTATION
SPEED
RATIO TO
TURBINE
SHAFT
CONTINUOUS
STATIC
OVERLOAD
OVERHANG
(in-lb)
High pressure rotor
Starter
IDGS
Fluid power pump (R)
VSCF
CCW
CCW
CCW
CCW
0.841:1
0.841:1
0.391:1
2.435:1
- - -
**
1,500
***
*
10,500
6,500
4,500
- - -
**
1,950
***
500
2,000
400
400
LEGEND: CCW = counterclockwise
* Maximum starter continuous torque = 1050 lb-ft at zero rpm and 1,250 lb-ft
maximum impact torque. Maximum allowable starter torque value is 1,498 -
1,732 lb-ft.
** Maximum allowable continuous torque values are equivalent to 243
horsepower at any engine speed at or above sea level idle. The following
overload conditions can be accommodated:
HORSEPOWER DURATION TIME RECURRING TIME
304 5 minutes 1,000 hours
304 5 seconds 1 hour
500 5 seconds 1,000 hours
*** Maximum allowable continuous torque values are equivalent to 58
horsepower at any engine speed at or above sea level idle. The following
overload conditions can be accommodated:
HP DURATION TIME RECURRING TIME (HRS)
87 5 min 1000
87 5 sec 1
128 5 sec 1000
NOTE 7. Power setting, power checks, and control of engine output in all operations are to be based upon Pratt & Whitney
engine charts referring to either turbine discharge section gas pressure or low rotor speed. Pressure probes and a low
rotor speed sensor are included in the engine assembly for this reason.
NOTE 8. Lightning protection re quirements and electromagnetic interference emitted by the electronic engine control system,
including cables, are specified in the Installation and Operating Manual, Section 5.12.
NOTE 9. Fuel and fuel additives conformi ng to the latest applicable issue of FAA-approved Pratt & Whitney Turbojet Engine
Service Bulletin No. 2016 may be used separately or mixed in any proportions without adversely affecting the
engine operation or power output.
NOTE 10. The following oils are eligible: Oils conforming to Pratt & Whitney Turbojet Engine Service Bulletin No. 238,
latest revision.
TCDS E46NE PAGE 6
NOTE 11. Certain engine parts are life limited. Limits are lis ted in Pratt & Whitney PW4000-112 series engine Turbofan
Engine Manual, Part Number 51A345, time limit section for models PW4074, PW4077 and PW4084 and Part
Number 51A751 for models PW4077D, PW4084D, PW4090, PW4090-3, and PW4074D.
NOTE 12. The engines meet the smoke and gaseous emission requirements of Part 34.
NOTE 13. The maximum permissible engine inlet distortion limit is specified in the Installation and Operating Manual, Section
5.4, Report PWA-6510-09.
NOTE 14. Limits regarding transient ro tor shaft overspeed rpm and transient gas overtemperature and the number of
overtemperature occurrences are specified in the Maintenance Document, Part No. 51A344.
NOTE 15. Information regarding approved fuel filter and oil filter replacement is in the PW4000 Series Illustrated Parts
Catalog, Part Number 51A346 for models PW4074, PW4077 and PW4084 and Part Number 51A742 for models
PW4077D, PW4084D, PW4090, PW4090-3, and PW4074D.
NOTE 16. Requirements and limitations associat ed with automatic fuel system anti-icing are specified in the Installation and
Operating Manual, Section 5.5, Report PWA-6510-09.
NOTE 17. The PW4000-112 series engine model engines have b een approved to operate with certain faults present in the
control system, based on satisfaction of FAR 33 requirements and appropriate FAR 25 control system reliability
requirements. The following criteria exist as dispatch and maintenance requirements for the engine control system.
These criteria are specified in Pratt & Whitney Report PWA-6600-05 which defines the various configurations and
maximum operating intervals as follows:
Fault Level A: No dispatch allowed
Fault Level B: Dispatchable: maximum operati ng interval for Fault Level B fault(s) is
20 days.
Fault Level D: Unlimited dispatch
Fault Levels A, B and D: unlimited dispatch constitute Pratt & Whitney nomenclature. The airframe manufacturers
may use different nomenclature in adapting these fault categories to the aircraft maintenance and display systems.
However, the maximum operating intervals are restricted as shown above. Fault Level C is not applicable for
PW4000-112 series engines.
A control system reliability monitoring program has been established with Pratt & Whitney in compliance with the
reporting requirements as outlined in the Engine and Propeller Directorate Policy, letter dated October 18, 1993, for
Time Limited Dispatch of Engine fitted with FADEC Systems.
NOTE 18. The normal 5 minute takeoff time limit may be extende d to 10 minutes for one engine inoperative contingency.
NOTE 19. The PW4090-3 engine model provides the same ta keoff thrust as the PW4090 engine model up to a 1000 foot
altitude for all temperature days. Above 1000 feet in altitude the PW4090-3 rating provides increased takeoff thrust
as a function of both ambient temperature and altitude as shown in the Installation and Operating Manual, Section 4
and Table 1, Report PW-6510-09. Above ambient temperatures of 86oF the altitude ratings do not exceed that of the
sea level rating for the PW4090 and PW4090-3 engine models.
----END----