# TCDS H4NM: Bell Textron Inc.

- Type: Type certificate data sheet
- Status: Current
- Holder: Bell Textron Inc.
- Revision: 12
- Revised: April 14, 2021
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Registered aircraft: 7, by the registry models matched to it (OpenAirDocs)
- Data sheet PDF: https://openairdocs.org/files/sha256/c3/bb/c3bb5d10736cb545f3b4da7a6029d84792e4a8b3da4895eb59dd3c0c6bd071b2
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/00ABB6F558F0A642862586B700704EC0.0001
- Page: https://openairdocs.org/tcds/H4NM

## Models (3)

As the data sheet lists them.

- TH-1L
- UH-1E
- UH-1L

## What the data sheet says

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

```text
DEPARTMENT OF TRANSPORTATION 
FEDERAL AVIATION ADMINISTRATION 
 
 
TYPE CERTIFICATE DATA SHEET H4NM 
 
This data sheet which is a part of Type Certificate No. H4NM prescribes conditions and limitations under which the product for 
which the type certificate was issued meets the airworthiness requirements of the Civil Air Regulations and Federal Aviation 
Regulations. 
 
Holder of Type Certificate: Bell Textron Inc. 
P.O. Box 482 
Fort Worth, Texas 76101 
 
Type Certificate Holder Record Original TC issued on March 19, 1985. 
TC transferred to Lenair Corp. May 8, 1985. 
Lenair Corp. transferred TC to Oregon Helicopters, Inc. on February 22, 1988. 
Oregon Helicopters Transferred TC to Southern Aero Corp. on May 25, 1990. 
Southern Aero Corp. Transferred TC to Williams Helicopter Tech. On July 9, 1993. 
Williams Helicopter Tech. Transferred TC to US Helicopter, Inc. on November 25, 1997. 
U.S.Helicopter , Inc. Transferred TC to Bell Helicopter Textron, Inc. on January 10, 
2011. 
Renamed from “Bell Helicopter Textron Inc.” to “Bell Textron Inc.” on July 1, 2019. 
 
Models UH-1L/TH-1L (Utility Helicopter Restricted Category) Approved March 19, 1985 
 
Engine Lycoming T53-L-13 
 
Fuel Grade JP-4 or See Navy NAVAIR 01-110HCA-1 
 
Engine Limits See U.S. Navy NAVAIR 01-110HCA-1 
 
Rotor Limits See U.S. Navy NAVAIR 01-110HCA-1 
 
Airspeed Limits See U.S. Navy NAVAIR 01-110HCA-1 
 
C.G. Range See U.S. Navy NAVAIR 01-110HCA-1 
 
Maximum Weight See U.S. Navy NAVAIR 01-110HCA-1 
Empty Weight C.G. Range See U.S. Navy NAVAIR 01-110HCA-1 
Minimum Crew 1 (pilot) for VFR flight 
No. of Seats See Note 12 
 
Fuel Capacity 242 U.S. Gallons 
 
Oil Capacity 3.25 U.S. Gallons 
 
Fuel 80/87 min. grade aviation gasoline 
 
Rotor Blade and Control For rigging information refer to U.S. Navy NAVAIR 01-110HCA-2. 
Movements 
 
Serial No’s. Approved None Reported 
 
Page No 1 2 3 4 5 
Rev. No. 11 11 11 11 11 
H4NM 
Revision 12 
Bell Textron Inc. 
UH-1L, TH-1L, UH-1E 
 
April 14, 2021

Model UH-1E (Utility Helicopter Restricted Category) approved March 26, 1986. 
 
Engine Lycoming T53-L-11 series (See Note 11 for Alternate Engines). 
 
Fuel Grade JP-4 or see Navy NAVAIR 01-110HCA-1. 
 
Engine Limits See U.S. Navy NAVAIR 01-110HCA-1 
 
Rotor Limits See U.S. Navy NAVAIR 01-110HCA-1 
 
Airspeed Limits See U.S. Navy NAVAIR 01-110HCA-1 
 
C.G. Range See U.S. Navy NAVAIR 01-110HCA-1 
 
Maximum Weight See U.S. Navy NAVAIR 01-110HCA-1 
 
Minimum Crew 1 (pilot) for VFR flight 
2 (pilot and co-pilot) for IFR flight 
 
No. of Seats See Note 12 
 
Fuel Capacity 242 U.S. gallons 
 
Oil Capacity 3.25 U.S. gallons 
 
Rotor Blade and Control For rigging information refer to U.S. Navy NAVAIR 01-110HCA-2. 
Movements 
 
Serial No.’s Approved The following Navy Model UH-1E helicopters serial numbers have been approved under 
this TCDS as of August 18, 2003: 
S/N’s: 154757 
Data Pertinent to All Models 
 
Leveling Means Plumb line dropped from slotted plate in cabin roof directly above leveling plate.  The 
leveling plate is located on the cabin floor just inside the left cargo door. 
 
Certification Basis FAR 21.25(a)(2), effective February 1, 1965, including Amendments 21-1 through 21-71 
for the special purpose of: 
 
(1) Agriculture Operations under FAR 21.25(b)(1) 
 
Note: In accordance with FAR 36.1(a)(4), compliance with the noise requirements was 
not shown. Therefore, aircraft certificated under this type certificate are only eligible for 
agricultural operations excepted by FAR 36.1(a)(4) and defined under FAR 137.3. 
 
 
(2) Forest and Wildlife Conservation Operations under FAR 21.25(b)(2). 
 
Note: In accordance with FAR 36.1(a)(4), compliance with the noise requirements was 
not shown. Therefore, aircraft certificated under this type certificate are only eligible for 
dispensing fire fighting materials excepted by FAR 36.1(a)(4) and defined under FAR 
137.3

H4NM Page 3 of 5 
 
 
Certification Basis (Cont’d) (3)   External Load Operations 
 
Note: In accordance with FAR 36.1(a)(4), compliance with the noise requirements was 
not shown. Therefore, aircraft certificated under this type certificate are only eligible for 
external load operations excepted by FAR 36.1(a)(4) and defined under FAR 133.1(b) 
 
Any alteration to the helicopter for Special Purposes not identified above require further 
FAA approval and in addition, may require noise and/or flight testing 
 
General Note: Any subsequent modifications to the helicopters type certified under this 
Type Certificate are to have the certification basis for that modification established under 
14CFR 21.101 published June 7, 2000 which became effective June 10, 2003. Otherwise 
non-significant modifications are to meet the requirements of 14 CFR 29 airworthiness 
standards, transport category, Amendment 1, effective August 12, 1965 and 14 CFR 
29.1529, Instructions for continued airworthiness, Amendment 20, effective September 
11, 1980. 
 
Date of Application December 4, 1984: Amended, February 4, 1986. 
 
Production Basis None.  No helicopter may be produced under this approval.  (See Note 4) Prior to adding 
serial numbers to this Type Certificate, each candidate helicopter must undergo a 
conformity inspection. The conformity inspection will be conducted in accordance with 
a Type Inspection Authorization, Part 1, or request for conformity that will include as a 
minimum, the inspections contained in the FAA Rotorcraft Directorate Restricted 
Category Conformity document dated September 25, 2001 or later FAA approved 
revisions. 
 
Equipment The basic required equipment as prescribed in the applicable airworthiness regulations 
(see certification basis) must be installed in each type helicopter for certification. In 
addition, the following special purpose equipment and documents must be available in or 
on each helicopter for type certification and airworthiness certification: 
 
(a) U.S. Navy NAVAIR 01-110HCA-1 must be available in the helicopter for all flight 
operations. 
 
NOTES 
 
Note 1: A current weight and balance report including a list of equipment included in the certificated empty weight, 
and loading instructions must be in each type helicopter at time of original airworthiness certification and at 
all times thereafter. 
 
Note 2: The following placards must be prominently displayed in the cabin in clear view of the pilot: 
 
 
Placard No. 1: 
 
OPERATING LIMITATIONS 
 
GROSS WEIGHT (LBS) 7500 8500 9500 
AIR SPEED POWER ON (KNOTS) 140 130 125 
DECREASED AIRSPEED    3 KNOTS/1000 FT ABOVE 3000 FT 
 
RPM LIMITS 
POWER ON 314 TO 324 RPM (6400 TO 6600 RPM) 
POWER OFF 300 TO 339 RPM (6100 TO 6900 RPM)

Note 2: (Cont’d)  
Placard No. 2: 
 
THIS ROTORCRAFT MUST BE OPERATED IN ACCORDANCE WITH THE RESTRICTED 
CATEGORY OPERATING LIMITATIONS OF FAR 91.313 AND WITH THE LIMITATIONS 
NOTED IN U.S. NAVY NAVAIR 01-110HCA-1. 
 
Placard No. 3: 
 
EXTERNAL LOAD OPERATIONS: Vne WILL BE DETERMINED FOR EACH PROPOSED 
EXTERNAL LOAD APPLICATION 
 
Placard No. 4: 
 
TURN ON ENGINE DE-ICE WHEN OPERATING IN VISIBLE MOISTURE AT 
TEMPERATURES BELOW 32 DEGREES FAHRENHEIT (0 DEGREES CELCIUS). 
 
Placard No. 5: 
 
VFR OPERATIONS ONLY 
 
Placard No. 6: 
 
(A placard identifying the specific type of T53-L-13 or T53-L-11 engine installed, must be 
installed.) 
 
Note 3: The helicopters must be serviced and maintained in accordance with U.S. Navy NAVAIR  01 -110HCA-2. 
Component overhaul intervals and replacement times shall be in accordance with U.S. Navy NAVAIR 01-  
110HCA-6. 
 
Note 4: In addition to the standard helicopter requirements, the following additional data and/or helicopter 
configuration requirements must be met for each individual US Helicopter, Inc. models UH-1L, TH-1L and 
UH-1E   helicopter upon application for an original Special Airworthiness Certificate: 
(a) A completed Application for Airworthiness Certificate, FAA Form 8130-6 that has correctly identified 
the type certificate holder’s helicopter and its intended special purpose(s). 
(b) Written confirmation from the certifying office that the affected serial number has been added to US 
Helicopter, Inc. Type Certificate. 
(c) The application for airworthiness certification and the helicopter’s registration certification must match 
the information on US Helicopter, Inc. data plate. 
(d) The helicopter Flight Manual and documents specified in Note 3 are with the helicopter. 
(e) The conditions and limitations specified in US Helicopter, Inc. Type Certificate Data Sheet H4NM 
dated August 12, 2003 or later FAA approved revision are met. 
(f) Each helicopter must satisfactorily pass an inspection for conformity, possible hidden damage, and for 
workmanship and materials used in making any repairs and/or alterations 
(g) The maintenance, overhaul, and modifications records of each aircraft must be reviewed for changes by 
the military services that may affect the airworthiness of the aircraft. Modifications and changes of 
equipment which affect the safety or performance of the helicopter must be approved by the Federal 
Aviation Administration. 
 
Note 5: This helicopter is prohibited from carrying cargo for compensation or hire.  Carriage of cargo is limited to 
such cargo that is incidental to the helicopter owners/operator’s business, which is other than air 
transportation. 
 
Note 6: A restricted category helicopter may not be operated in a foreign country without the express written 
approval of that country. 
 
Note 7: This helicopter has not been shown to meet the requirements of the applicable comprehensive and detailed 
Airworthiness Code as provided by Annex 8, to the Convention of the International Civil Aviation 
Organization.

H4NM Page 5 of 5 
 
 
Note 8: Military to Civil or Military to Military engine changes are allowed, provided the replacement engine is of 
the same make and model as identified in this TCDS. The military or civil replacement engine must have 
proper military or civil records and have the applicable FAA Airworthiness Inspection accomplished and is 
in an airworthy condition. 
 
Note 9: FAA Airworthiness Directives for all UH-1 and Bell 204 series helicopters and Lycoming T53-L-11 or T53- 
L-13 series engines must be reviewed for applicability and complied with accordingly. 
 
Note 10: The Model UH-1E helicopter is eligible with Lycoming T53-L-13/-13A/   -13B engine when installed in 
accordance with NAVAIR 01-110HCA-2 installation instructions, and when the engine instruments are 
marked according to the U.S. Navy NAVAIR 01-110HCA-1 instrument markings for the respective engine 
on the models UH-/TH-1L helicopters. US Helicopter Manual Supplement Number UH-1E-13 must be 
included with the Flight Manual. 
 
Note 11: Alternate and emergency fuels are listed in Operators Manual (U.S Navy Model UH-1L, UH-1E and TH-1L 
Helicopters. Some limitations apply for the use of certain alternative fuels.  These limitations are listed in 
this section. 
 
Note 12: No person may be carried in this helicopter during flight unless that person is essential to the purpose of the 
flight. 
 
Note 13: This approval applies to the basic United States Navy/Marine UH-1L, UH-1E and TH-1L helicopters 
modified by the installation of a data plate, described in US Helicopter, Inc. Specification U97-001-ST. 
 
Note 14: The T53-L-11 engine is rated to an output torque equivalent to 110 horsepower at 6600 RPM for takeoff and 
900 horsepower at 6600 RPM for continuous operation. 
 
Note 15: The T53-L-13 gas turbine power plant in these installations is rated to an output torque value equivalent to 
1400 horsepower at 6600 RPM take-off and 1250 horsepower continuous; however, the transmission is 
restricted to a maximum of 1100 horsepower at 6600 RPM (50 PSI). 
 
Note 16: The T53-L-13 and T53-L-13A engines are limited to 97 percent gas generator speed or 24,000 RPM.  The 
aircraft equipped with the T53-L-13B engines are not limited by this powerplant restriction; therefore the 
pilot must ascertain which engine is installed prior to start. Performance charts have been included in 
NAVAIR 01-110HCA-1 to cover this reduction in power. 
 
Note 17: Torque pressure output by the engine torque sensing system va ries with individual engines.  A calibration  of 
this value is required on each engine and the value corresponding to take-off power is stamped on the engine 
data plate. 
 
Note 18: Gas producer speed as shown under “Engine Limits” are maximum permissible speeds.  The gas producer 
speed for rated power output varies with individual engines and must be determined during engine 
calibration and stamped on the engine data plate. 
 
Note 19: The rated gas producer speed shown on the temperature limit placard installe d on the instrument panel must 
correspond to the engine data gas producer speed. Gas producer speed limits also vary with the schedule as 
shown on the Temperature Limit (GO-NO-GO TAKE-OFF) placard on the instrument panel. 
 
Note 20: Any alteration to the type design of this aircraft may require Instructions for Continued Airworthiness.  If so, 
these instructions must be submitted and accepted by the FAA Fort Worth Aircraft Evaluation Group (FTW - 
AEG), prior to approval for return to service. 
 
 
 
....END....
```

## ADs (5, in force first)

- [AD 2014-03-10](https://openairdocs.org/ad/2014-03-10): Tail Rotor Control System · JJASPP Engineering Services UH-1H, UH-1F, TH-1L and 35 more. Effective Mar 26, 2014
- [AD 2013-13-06](https://openairdocs.org/ad/2013-13-06): Main rotor head · California Department of Forestry UH-1H, UH-1F, TH-1L and 36 more. Effective Sep 10, 2013
- [AD 2013-13-14](https://openairdocs.org/ad/2013-13-14): Main Rotor Head · JJASPP Engineering Services UH-1H, UH-1F, TH-1L and 33 more. Effective Jul 24, 2013
- [AD 88-08-01](https://openairdocs.org/ad/88-08-01): Rod End Bearing Assembly · Bell Helicopter Textron TH-1L, UH-1E, UH-1L and 5 more. Effective May 6, 1988
- [AD 80-17-09](https://openairdocs.org/ad/80-17-09) (historical): Main Rotor Straps · Bell Helicopter Textron 204B, 205A-1, 212 and 16 more. Effective Sep 15, 1980

## Registered aircraft by registry model (OpenAirDocs)

- [Bell UH-1E](https://openairdocs.org/model/bell-uh-1e): 6 aircraft (registry code 118141H)
- [Bell UH-1L](https://openairdocs.org/model/bell-uh-1l): 1 aircraft (registry code 1181401)
- [Bell TH-1L](https://openairdocs.org/model/bell-th-1l): 0 aircraft (registry code 1180817)

## STCs approved under this data sheet (12)

- [STC SR12332SE](https://openairdocs.org/stc/SR12332SE): Installation of Mechanical Specialties, LLC Human External Cargo (HEC) and non-HEC Hook System. Mechanical Specialties, LLC
- [STC SR00119DE](https://openairdocs.org/stc/SR00119DE): Installation of an upgraded 42 degree Tail Rotor gearbox, P/N 212-040-003, and Control Cables. Midwest Aerospace TC LLC
- [STC SR09177RC](https://openairdocs.org/stc/SR09177RC): Modification of the vertical fin spar. Midwest Aerospace TC LLC
- [STC SH5690NM](https://openairdocs.org/stc/SH5690NM): Installation of Advanced Technology Aircraft Co. engine barrier filter.. WSH, LLC
- [STC SR02596SE](https://openairdocs.org/stc/SR02596SE): Installation of Olympic Aero Services, Inc. Additional Telemetry Unit (ATU). OLYMPIC AERO SERVICES INC.
- [STC SR03408CH](https://openairdocs.org/stc/SR03408CH): Install Airwolf Aerospace, LLC Tension-Torsion Strap Assemblies, P/N AA-204-310-101-101 or AA-204-310-101-103. Airwolf Aerospace LLC
- [STC SR02413LA](https://openairdocs.org/stc/SR02413LA): Installation of an AKV, Inc Exceedence and Trend Monitoring System kit P/N ETM1000. AKV Inc.
- [STC ST04270AT](https://openairdocs.org/stc/ST04270AT): Install the VTOL ASSALT  V3 Windscreen Laminate Kit. VTOL LLC
- [STC SR09316RC](https://openairdocs.org/stc/SR09316RC): Fabrication, modification, and installation of a new vertical fin spar in accordance with Global Helicopter Technology, Inc., Drawing number VTF-030-801, Revision B, dated April 5, 2001, or later FAA approved revision.. Global Spar LLC
- [STC SR01298NY](https://openairdocs.org/stc/SR01298NY): Installation of replacement crosstubes P/N D212-664.. Dart Aerospace Limited
- [STC SR00563NY](https://openairdocs.org/stc/SR00563NY): Installation of Skidtubes and associated saddles. Dart Aerospace Limited
- [STC SR00332NY](https://openairdocs.org/stc/SR00332NY): Installation of Avionics Specialties power analyzer and recorder no. SL17009 and SL17061.. Aerosonic Corporation

---
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