- Holder
- Siller Helicopters LLC
- Revision
- 6
- Revised
- July 24, 2012
- Status
- Current
- Product
- Aircraft · Rotorcraft
- Certification basis
- Part 21
- Models
- 1
- Registered
- 3 aircraft
The release keeps the latest revision of each data sheet. Model names are as the data sheet lists them.
On this page
Models · 1
| Model | Also known as | Note |
|---|---|---|
| CH-54A | Formerly Siller Helicopters · Sikorsky |
Airworthiness directives · 1
ADs whose products are models on this data sheet, matched by model and maker.
Registered aircraft
Registry models that point at this data sheet, with their registered aircraft.
STCs approved under this data sheet · 9
STC SR11923SEInstallation of Helicopter Transport Services, LLC Shock Absorber HTS-2000STC SR02717SEInstallation of Helicopter Transport Services Remote Fuel Sump SystemSTC SR02684SEInstallation of Helicopter Transport Services, LLC (HTS) lightweight firefighting refill pumpSTC SR00004SEFabrication and installation of Erickson fire fighting systemSTC SR00815SEFabrication and installation of Erickson Model Sea Snorkel systemSTC SR02650LAInstallation of Fuel Quantity Indicating System (FQIS) UpgradeSTC SR02055SEReplacement tail rotor blades, Part Numbers 65161-00001-041MII and/or 65161-00001-043MIISTC SR00931SEFabrication of Simplex Model 314 Fire Attack SystemSTC SA4302NMInstallation of Electronics Int'l digital automatic engine analyzer.
What the data sheet says
From the PDF’s text layer, line by line: tables lose their columns. The PDF is the record.
Page No. 1 2 3 4 5 6
Rev. No. 5 4 4 4 4 6
DEPARTMENT OF TRANSPORTATION
FEDERAL AVIATION ADMINISTRATION
TYPE CERTIFICATE DATA SHEET H18NM
This data sheet, which is a part of Type Certificate Data Sheet No. H18NM, prescribes conditions and limitations under
which the product for which the type certificate was issued meets the airworthiness requirements of the 14 Code of
Federal Aviation Regulations (14 CFR).
Type Certificate Holder: Siller Helicopters, LLC.
1250 Smith Road
Yuba City, CA 95991
Type Certificate Holder Record: Siller Helicopters, Inc.
1250 Smith Road
Yuba City, CA 95991
Siller Helicopters,
1250 Smith Road,
Yuba City, CA 95991
I Model CH-54A (Restricted Category Rotorcraft) Approved August 15, 1994. (See NOTES Section)
Engines (2) Pratt & Whitney JFTD12A-4A (T73-P-1)
Fuel ASTM-D1655 (Jet A, Jet A-1, Jet B) (See Note 13 for Alternative Fuels)
Engine and
Transmission Limits
Rating
Torque
(% Q)
Output
Horsepower
(HP)
Power
Turbine
Speed
(N2)
Gas
Generator
Speed (N1)
Turbine
Inlet
Temp.
(T5)
Dual Engine Limits
Military Power (30 Min.) 81 9000 105% 104% 688º-C
Normal Continuous Cruise 66 8000 95-104% 40-104% 655º-C
One Engine Limits
One Engine Inop (30 Min.) 100 4500 105% 104% 688°-C
Max. Continuous Cruise 79 4000 95-104% 40-104% 655º-C
• (%Q) Values are Main Transmission Limits
Takeoff and maximum continuous horsepower ratings are normally obtained at a power
turbine speed of 9000 r.p.m. (100% N2).
Total power for two-engine operations is limited to 6600 s.h.p. for takeoff and 5400 s.h.p.
maximum continuous.
Refer to Department of the Army Technical Manual No. TM55-1520-217-10-1,
Operator’s Manual, Army Model CH-54A Helicopters, Chapter 5, for additional
limitation data.
Rotor Speed Limits Power Off Power On
Maximum 204 r.p.m. (110%Nr) 193 r.p.m. (104%Nr)
Minimum 167 r.p.m. (90%Nr) 185 r.p.m. (100%Nr)
H18NM
Revision 6
Siller Helicopters, LLC.
CH-54A
March 31, 2025
H18NM Page 2 of 6
Airspeed Limits Vne (Never Exceed Speed): 99 knots between 38,000 lbs. and 42,000 lbs.
gross weight; 115 knots up to 38,000 lbs. gross weight.
Center of Gravity 324.0 to 352.0 at 23,000 lbs.
(C.G. Range) 324.0 to 352.0 at 30,000 lbs.
328.0 to 352.0 at 38,000 lbs.
328.0 to 346.0 at 38,000 lbs.
328.0 to 346.0 at 42,000 lbs.
Gross Weight (Lbs.) 42,000
38,000
30,000
23,000
324 328 346 352
Inches from Datum
Straight line variation between points given.
Empty Weight C.G. Range Fwd Limit: 324 inches aft of datum
Aft Limit: 352 inches aft of datum
Datum Station 0 (Datum is 336 Inches forward of the main rotor centroid.)
Leveling Means Plumb line from top level plate inside cockpit aft door. See NOTE 1.
Maximum Weight 42,000 lbs.
Minimum Crew 2 – pilot and copilot
Number of Seats 2 at (+92.9). See NOTE 12.
Maximum Cargo See NOTE 5.
Fuel Capacity 1351 gal.; 454 gal. at (+280.8), 454 gal. at (+397.3), 443 gal. at (+461.3)
Oil Capacity 3.2 gal. at (+234.0) - (2 tanks 1.6 gal. each).
Rotor Blade and For rigging information, see NOTE 4.
Control Movements
Other Operating Limitations See NOTE 5.
Serial No. Approved U.S. military surplus CH-54A helicopters as identified in Siller Helicopters,
LLC Serial Number Approved Report Number SH-065, N.C., dated August
15, 2005, or later FAA approved revision.
Certification Basis Part 21 § 21.25(a)(2) effective February 1, 1965, including Amendments 21-1
through 21-42. Type Certificate No. H18NM issued August 15, 1994 for the
special purpose of:
1) Agricultural Operations under § 21.25(b)(1).
Note: In accordance with Part 36 § 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 except by § 36.1(a)(4)
and defined under § 137.3.
Page 3 of 6 H18NM
Certification Basis – Continued 2) Forest and Wildlife Conservation Operations under § 21.25(b)(2).
Note: In accordance with § 36.1(a)(4), compliance with the noise requirements
was not shown. Therefore, aircraft certificated under this type certificate are
only eligible for aerial dispensing of liquids and forest conservation material
excepted by § 36.1(a)(4) and defined under § 137.3.
3) External Load Operation under § 21.25(b)(7).
Note: In accordance with § 36.1(a)(4), compliance with the noise requirements
was not shown. Therefore, aircraft certificated under this type certificate are
only eligible for external loads operations excepted by § 36.1(a)(4) and defined
under § 133.1(b).
Any alteration to the aircraft 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 14 CFR part 21 § 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 part 29 § 29.1529, Instructions for Continued Airworthiness, Amendment
20, effective September 11, 1980.
Date of Application June 16, 1994
Production Basis None. No helicopters may be produced under this approval. Prior to adding
serial numbers to this Type Certificate, each candidate helicopter must pass 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 necessary for the particular special purpose
operation must be installed for certification. Each helicopter is required to
incorporate modifications as specified in:
1. Siller Helicopters, LLC Engineering Configuration Report No. SH-063,
Revision 1, dated August 16, 2005, or later FAA Approved revisions.
2. Department of the Army Technical Manual No. TM55-1520-217-10-1,
Operator’s Manual, Army Model CH-54A Helicopters, dated April 8,
1977, with Changes 1 through 8, revised September 25, 1986.
3. Department of the Army Technical Manual No. TM55-217-CL-1,
Operator’s & Crewmember’s Checklist, Army Model CH-54A
Helicopters, Pilot’s Checklist, dated June 2, 1985.
4. U.S. Army External Cargo Hook P/N 6435-63000-025 installed on model
CH-54A as part of the military configuration.
NOTES
NOTE 1. A current weight and balance report including a list of equipment included in
the certified empty weight, and loading instructions when necessary, must be
provided for each helicopter at the time of original airworthiness certification.
1. TM55-1520-217-10-1, Operator’s Manual, Army Model CH-54A
Helicopters, Chapters 5 and 6.
2. TM55-1520-217-23-1-1, Maintenance Manual, Paragraph 1-29 through 1-
31.
NOTE 1 – Continued 3. Siller Helicopters, LLC Weight and Balance Report No. SH-067, N.C.,
dated August 18, 2005 or later FAA Approved revisions.
H18NM Page 4 of 6
NOTE 2. The following placards must be prominently displayed in the cockpit in full
view of the pilots per Siller Helicopters, LLC Drawing No. SBA-055, Rev. A,
dated August 16, 2005, or later FAA Approved revisions:
Placard No. 1
THIS HELICOPTER MUST BE OPERATED IN COMPLIANCE WITH THE
OPERATING LIMITATIONS SPECIFIED IN THE APPROVED
HELICOPTER OPERATORS MANUAL. REFER TO TM55-1520-217-10-1,
CHAPTER 5, FOR OPERATING LIMITS AND RESTRICTIONS.
Placard No. 2
THIS ROTORCRAFT MUST BE OPERATED IN ACCORDANCE WITH
THE RESTRICTED CATEGORY OPERATING LIMITATIONS OF 14 CFR
PART 91 § 91.313.
Placard No. 3
EXTERNAL LOADS OPERATIONS: Vne WILL BE DETERMINED FOR
EACH PROPOSED EXTERNAL LOAD APPLICATION.
Placard No. 4
VFR OPERATIONS ONLY.
NOTE 3. The builder’s data plate required by part 45 § 45.13 must be installed in
accordance with Siller Helicopters, LLC Drawing No. SH-054, Revision A,
dated August 16, 2005, or later FAA Approved revisions.
NOTE 4. The helicopter(s) must be serviced, maintained and inspected, repaired, and
overhauled in accordance with the requirements and documents specified in
Siller Helicopter, LLC Instructions for Continued Airworthiness Report CH-
54-064, Revision 1, dated August 11, 2005, or later FAA accepted revision, or
inspected in accordance with other FAA accepted inspection programs. The
service life limited parts overhaul and retirement intervals for these helicopters
is specified in Siller Helicopters, LLC, Instructions For Continued
Airworthiness Report, Report No. CH-54-064, Revision 1, dated August 11,
2005 or later FAA Approved revision. A FAA approved/accepted copy must
accompany each helicopter on delivery.
The service life limited parts retirements intervals of these helicopters
previously listed in the Type Certificate Data Sheet H18NM have been
incorporated in Siller Helicopters, LLC, Instructions For Continued
Airworthiness Report, Report No. CH-54-064, Revision 1, dated August 11,
2005, or later FAA Approved revision. The life limits are in no way altered or
changed from those previously FAA Approved.
NOTE 5. This helicopter must be operated in accordance with a Flight Manual comprised
of the following:
1. Department of the Army Technical Manual No. TM55-1520-217-10-1,
“Operator’s Manual, Army Model CH-54A Helicopters”, dated April 8,
1977, with Changes 1 through 8, revised September 25, 1986.
2. Department of the Army Technical Manual No. TM55-1520-217-CL-1,
“Operator’s & Crewmember’s Checklist, Army Model CH-54A
Helicopters, Pilot’s Checklist”, dated June 2, 1985.
NOTE 6. Prior to obtaining an original Airworthiness Certificate:
NOTE 6 – Continued A. Each helicopter must pass a conformity inspection in accordance with
Siller Helicopter, LLC Engineering Configuration Report SH-063,
Revision 1, dated August 16, 2005, or later FAA Approved revision. The
Engineering Configuration Report identifies the Military Maintenance
Page 5 of 6 H18NM
Work Orders, Technical Bulletins, Optional Equipment and the special
purpose modification(s) accomplished on that particular helicopter.
B. Each helicopter must pass an inspection for any possible hidden damage
and the Military records reviewed for acceptability of any repairs or
alterations.
C. The maintenance, overhaul, and modification records of each helicopter
must be reviewed for military changes that may affect the airworthiness of
the helicopter. Modifications and changes of equipment that affect the
safety or performance of the helicopter must be approved by the Federal
Aviation Administration. After the required inspections, the aircraft must
be found to be in a good state of preservation, repair, and in a condition
for safe operation.
NOTE 7. This aircraft is prohibited from carrying cargo for compensation or hire.
Carriage of cargo is limited to such cargo that is incidental to the aircraft
owner/operator’s business which is other than air transportation.
NOTE 8. A Restricted Category helicopter may not be operated in a foreign country
without the express written approval of that country.
NOTE 9. 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 on International Civil Aviation.
NOTE 10. 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 11. The Airworthiness Directives Compliance for the helicopter and engine(s)
contained in Siller Helicopters, LLC, Airworthiness Directives Report SH-066,
N.C., dated August 15, 2005, or later FAA Approved revision, must be
complied with prior to original airworthiness certification.
NOTE 12. No person may be carried in this helicopter during flight unless that person is
essential to the purpose of the flight. For additional mission configurations, see
Siller Helicopters, LLC Engineering Configuration Report No. SH-063,
Revision 1, dated August 16, 2005, or later FAA Approved revisions,
Department of the Army Technical Manual No. TM55-1520-217-10-1,
Operator’s Manual, Army Model CH-54A Helicopters, dated April 8, 1977,
with Changes 1 through 8, revised September 25, 1986, and Department of the
Army Technical Manual No. TM55-1520-217-23P-1, dated November 14,
1979.
NOTE 13. Alternative and emergency fuels are listed in TM55-1520-217-10-1, Operator’s
Manual, Army Model CH-54A Helicopters, Chapter 2, Section XV. Some
limitations apply for the use of certain alternate and emergency fuels. These
limitations are listed in this section.
NOTE 14. Any changes to the type design of this helicopter by means of an amended type
certificate (TC), supplemental type certificate (STC), or amended STC,
requiring instructions for continued airworthiness (ICA) must be submitted
through the project Aircraft Certification Office (ACO) for review and
acceptance by the Fort Worth -Aircraft Evaluation Group (FTW-AEG) Flight
Standards District Office (FSDO) prior to the aircraft delivery, or upon
issuance of the first standard airworthiness certificate for the affected aircraft,
whichever occurs later as prescribed by Title 14 CFR 21.50. Type design
changes (major repairs or alterations) by means of a FAA Form 337 (field
approval) that require ICA’s must have those ICA’s reviewed by the field
approving FSDO.
NOTE 15. The certification life limits for the helicopter, its engine and appliances were
based on satisfactory service history as designed and operated by the military.
H18NM Page 6 of 6
Therefore, to operate and maintain the aircraft to the original acceptance
criteria, and maintain it’s safe for intended use requirement, cycle counting and
operational time tracking is required on certain critical components. See Siller
Helicopters, LLC Report CH-54A-064, Instructions For Continued
Airworthiness, “Section II, Airworthiness Limitations Schedule”, dated
August 11, 2005, or later FAA Approved revisions.
END