# TCDS H14NM: Helicopter Transport Services LLC

- Type: Type certificate data sheet
- Status: Current
- Holder: Helicopter Transport Services LLC
- Revision: 13
- Revised: August 30, 2019
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21, Part 29
- Registered aircraft: 7, by the registry models matched to it (OpenAirDocs)
- Data sheet PDF: https://openairdocs.org/files/sha256/fe/bc/febceb5fa1e3aea6e8bff7a4481051b19db17709f30286f3ac0be0262f3320a0
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FBC6DB3EC980A69C8625847000581944.0001
- Page: https://openairdocs.org/tcds/H14NM

## Models (1)

As the data sheet lists them.

- CH-54B

## What the data sheet says

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

```text
Page No. 1 2 3 4 5 6 7 
Rev. No. 13 9 13 9 11 10 9 
 
DEPARTMENT OF TRANSPORTATION 
FEDERAL AVIATION ADMINISTRATION 
 
 
 
 
 
 
 
 
 
 
 
 
 
TYPE CERTIFICATE DATA SHEET NO. H14NM 
 
This data sheet, which is part of Type Certificate No. H14NM, prescribes conditions and limitations under which the 
product for which the Type Certificate was issued meets the Airworthiness Requirements of the Federal Aviation 
Regulations. 
 
Holder of Type Certificate: Helicopter Transport Services, LLC 
 14497 Keil Road NE 
 Aurora, OR  97002 
 
Type Certificate Holder Record: TC issued to Blue Bird Helicopter on September 15, 1993 
 TC transferred to Helicopter Transport Services February 21, 2001 
 Address Change on January 9, 2014 
 
1.  Model CH-54B (Military Surplus, Restricted Category) approved September 15, 1993  (see Note 6). 
 
Engines: 2 Pratt & Whitney JFTD12A-5A (T73-P-700), with Hamilton Standard Fuel  
 Control JFC56-6 
 
Fuel: Aviation Kerosene JP-4 or JP-5  
(Conforming to Pratt & Whitney Specification No. 522). 
 
Engine Limits: Sea Level Static, Standard Day Conditions 
 
  
Shaft HP 
Power 
Turbine R.P.M. 
Gas 
Gen. R.P.M. 
Power Turbine 
Inlet Temp. (T5) 
     
Takeoff (5 min.) 4800 9,450 (105% N2) 16,700  (104% N1) 720°C 
One engine 
  inoperative (30 min.) 
 
4800 
 
9,450 (105% N2) 
 
16,700 (104% N1) 
 
720°C 
Maximum continuous 4420 9,450 (105% N2) 16,700 (104% N1) 675°C 
Allowable maximum  
  overspeed 
 
- - 
 
10,260 (114% N2) 
 
16,700 (104% N1) 
 
675°C 
Acceleration limit (2 min.) - - - - - - 720°C 
Starting limit (2 min.) - - - - - - 525°C 
 
Takeoff and maximum continuous horsepower ratings are normally obtained at a 
power turbine speed of 9,000 r.p.mRPM. (100% N2). 
 
Total power for two-engine operation is limited to 7880 s. hp. (82% torque) for 
takeoff and 6530 s. hp. (68% torque) maximum continuous. 
H14NM 
 
Helicopter Transport 
Services 
 
CH-54B 
 
August 30, 2019 
Revision 13

H14NM  Page 2 of 8 
 
 
Rotor Limits: Power Off Power On 
 Maximum 204 RPM r.p.m. (110% 
Nr)* 
Maximum 193 RPM r.p.m. (104% 
Nr)** 
 Minimum 176 RPM r.p.m. (  95% 
Nr)* 
Minimum 185 RPM r.p.m. (100% 
Nr)** 
 
*During autorotation, do not operate below 95% or above 110% Nr.  Minimum 
Nr, down to 86%, is permitted momentarily during single-engine landing 
maneuvers. 
 
**When operating with power on, do not operate continuously below or above 
100% Nr even though the normal operating range is 100% to 104% Nr.  During 
takeoff and landing, a rotor rpm range of 100% to 104% Nr is permissible to 
reduce rotor induced airframe vibrations.  This increased speed range is not to be 
used in any of the remaining flight regimes. 
 
Airspeed Limits: Vne (never exceed) 120 m.p.h.MPH (104 knots) at 47,000 lbs. gross weight.  
For airspeed limits at lower gross weights and variation of Vne with altitude 
refer to Rotorcraft Flight Manual. 
 
Other Limits: The helicopters approved under this type certificate are done so under the 
concept of limited exposure associated with escape from inadvertent ice 
encounters, and are prohibited against flight into known icing.  The helicopters 
must be re-evaluated if certification to the General Ice Protection Airworthiness 
Regulations is required.  
 
C.G. Range: (+323.0)  to  (+349.0)  at  23,000 lbs. 
 (+323.0)  to  (+349.0)  at  30,000 lbs. 
 (+326.4)  to  (+349.0)  at  38,000 lbs. 
 (+326.4)  to  (+346.0)  at  38,000 lbs. 
 (+328.0)  to  (+346.0)  at  42,000 lbs. 
 (+328.0)  to  (+346.0)  at  47,000 lbs. 
 Straight-line variation between points given. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
23,000
30,000
38,000
42,000
47,000
323 328 346 349
Station -- Inches
Gross
Weight
(Pounds)

H14NM  Page 3 of 8 
 
 
Empty Weight C.G. Range: None 
 
Datum: 336 inches forward of main rotor centroid. 
 
Leveling Means: Plumb line from top level plate inside cockpit aft door. 
 
Maximum Weight: 47,000 lbs. 
 
Minimum Crew:  Pilot and Co-Pilot 
 
No. Seats: See Note 14.     2 at (+94.0),  1 at (+108.5),  1 at (+127.0),  1 at (+130.0). 
 
Maximum Baggage: 500 lbs. at (+124.0)  -  two baggage compartments with a maximum allowable 
load of 250 lbs. each compartment, and 500 lbs. at (+147); maximum allowable 
floor loading of 300 psf, all three compartments. 
 
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 gallon each 
 
Rotor Blade and  
Control Movements: For rigging information, refer to Maintenance Manual. (See Note 3.) 
 
Other Operating Limitations: See NOTE 6. 
 
Approved Serial No.’s: The following model CH54B helicopters have been approved under this TC: 
 
S/N’s: 69-18467, 69-18470, 69-18484, 69-18463, 69-18468, 69-18469 and 69-
18466 only. 
 
Certification Basis: FAR 21.25(a)(2) and (b) effective February 1, 1965, including amendments 21-1 
 through 21-42 and ASW-110 Memorandum dated September 8, 1993.  
Type  
 Certificate No. H14NM issued November 1, 1993, for the special purpose  
  of: 
 
(1) Forest and Wildlife Conservation operations under FAR 21.25(b)(2) 
 
 Note:  In accordance with FAR36.1(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. 
 
(2) External Cargo Operations under FAR 21.25(b)(7) 
 
 Note:  In accordance with FAR36.1(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 137.3. 
 
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 helicopter type certificated under 
this type certificate are to have the certification basis for that modification established 
under 14 CFR 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

Page No. 1 2 3 4 5 6 7 
Rev. No. 13 9 13 9 11 10 9 
 
airworthiness standards, transport category, effective February 1, 1965, including 
Amendments 29-1 thru 29-2, and 14 CFR 29 1529, Instructions for Continued 
Airworthiness, Amendment 20 effective September 11, 1980. 
 
Date of Application: November 30, 1992.  Amended September 12, 2003. 
 
Production Basis: None.  No helicopters may be produced under this approval.  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 inspection contained in the FAA 
Rotorcraft Directorate Restricted Category Conformity document dated 
September 25, 2001.  
 
Equipment: The basic required equipment as prescribed in the applicable airworthiness 
regulations must be installed in or on each 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) The “Operators Manual” and the “Checklists”.  (See Note 6) 
 
b) For the Special Purpose of External Loads under FAR 21.25(b)(7); 
provisions for the carriage of external loads are available in the form of 
structural hard points on the fuselage and main landing gear; single point 
hoist.  Information concerning the operating limitations with this equipment 
is contained in the Operations Manual.  The installation of a Department of 
the Army cargo pod will require further FAA approval. 
 
c) For the Special Purpose of Forest and Wildlife Conservation under FAR 
21.25(b)(2), Installation of the Simplex Model 314 Fire Attack Tank per 
Supplemental Type Certificate SR00931SE is required. 
NOTES 
 
NOTE 1. A current weight and balance report including a list of equipment included in the certificated 
empty weight, and loading instructions when necessary, must be in each helicopter at the time of 
original airworthiness certification and at all times thereafter.  The certified empty weight and 
corresponding C.G. locations must include undrainable oil of 5 lbs. (+234.0) and unusable fuel of 
26 lbs.; 10 lbs. at (+290.0), 9 lbs. at (+370.0), 7 lbs. at (+461.0).  Refer to Chapter 6 of TM 55-
1520-217-10-2, “Operator’s Manual, Army Model CH-54B Helicopters,” with changes 1 through 
5, revised September 25, 1986, for weight and balance information. 
 
NOTE 2. The following placards must be prominently displayed in the cockpit in full view of the pilots: 
 
"THIS ROTORCRAFT MUST BE OPERATED IN ACCORDANCE WITH THE 
RESTRICTED CATEGORY OPERATING LIMITATIONS OF FAR 91.313." 
 
“NO PERSON MAY BE CARRIED IN THIS HELICOPTER UNLESS HE IS A 
FLIGHT CREWMEMBER, FLIGHT CREWMEMBER TRAINEE, OR HE 
PERFORMS AN ESSENTIAL FUNCTION IN CONNECTION WITH THE MISSION 
OR IS NECESSARY FOR THE WORK ACTIVITY DIRECTLY ASSOCIATED WITH 
THE OPERATION.” 
 
The following placards must be prominently displayed next to the external load attaching point:

H14NM  Page 5 of 8 
 
 
 “MAXIMUM EXTERNAL LOAD 25,000 POUNDS”

H14NM  Page 6 of 8 
 
 
NOTE 3. These helicopters must be serviced, maintained, inspected and overhauled in accordance with the 
documents specified in Helicopter Transport Services, LLC, “Instructions for Continued 
Airworthiness Report No. 1,” document No. HTS-ICAREP-001, Revision 2, dated January 24, 
2013, or later FAA accepted revision, or inspected in accordance with another FAA accepted 
inspection program.  A FAA approved/accepted copy must accompany each helicopter on 
delivery. 
 
NOTE 4. In addition to the standard helicopter requirements, the following additional data and/or helicopter 
configuration requirements must be met for each individual HTSI model CH-54B helicopter upon 
application for an original Special Airworthiness Certificate: 
a) A completed Application for Airworthiness Certificate, FAA Form 8130-6 that correctly 
identifies 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 this Type Certificate. 
c) The application for airworthiness certification and the helicopter’s registration certificate must 
match the information on the HTSI Data Plate. 
d) The documents specified in Section III of the FAA accepted HTSI Instructions for Continued 
Airworthiness Report HTS-ICAREP-001, revision 2, dated January 24, 2013, or later FAA 
approved/accepted revision are with the helicopter. 
e) The conditions and limitations specified in this Type Certificate Data Sheet are met. 
f) The military equipment is removed and the civilian equipment is installed as listed in HTSI 
document No. HTS-DMILREP-001, “De-militarization Report No. 1”, Revision IR, FAA 
approved July 15, 2003, or later FAA approved revision.  A copy of this report must remain with 
the helicopter’s maintenance records and be delivered with the helicopter. 
 
NOTE 5. The Maximum Allowable Operating Time (MAOT) schedule for Service Life Limited Part 
overhaul and retirement intervals are specified in Chapter 1, Section VI of Technical Manual No.  
TM 55-1520-217-23-2-1, "Aviation Unit and Intermediate Maintenance Manual CH-54B 
Helicopter," with  Changes 1 through 16, dated September 21, 1987.  In addition to the above 
listed MAOT schedule, the following MAOT apply: 
 
  Lower Hub Plate 15,575 hrs. 
  65103-11009-103 
 
  Hub Plate Upper 21,675 hrs. 
  65103-11310-041 
 
  Vertical Hinge Pin 37,425 hrs. 
  65103-11022-105, -106 
   
  Bracket Damper 20,875 hrs. 
  65103-11032-042 
 
NOTE 6. These helicopters must be operated in accordance with a Flight Manual comprised of the 
following: 
(1) Helicopter Transport Services, LLC, “FAA Approved Rotorcraft Flight Manual HTS CH-
54B”, Document Number HTS-210, Rev IR, FAA approved May 1, 2012, or later FAA 
approved revisions. 
(2) Helicopter Transport Services, LLC, “Helicopter Transport Service CH-54B Flight Crew 
Checklist”, Document CH-54B Crew Member Checklist 210-CL, Rev IR, dated March 31, 
2013, or later FAA approved revisions. 
 VFR Restricted Category operations only.

H14NM  Page 7 of 8 
 
 
NOTE 7. Prior to civil airworthiness certification, the Department of the Army Modification Work Orders 
 (MWO's) and Technical Bulletins (TB's) listed in reports below, must be incorporated on those 
 aircraft. 
  Blue Bird Report No. 1, dated September 14, 1994, Serial Number 69-18467 and 69-18470 
  Blue Bird Report No. 2, dated July 1, 1994, Serial Number 69-18484 
 
NOTE 8. Prior to civil airworthiness certification compliance with the following must be accomplished: 
 
Federal Aviation Administration (FAA) Airworthiness Directives (AD's) No. where 
applicable: 
   75-11-11  Gear box shaft and gear assembly 
   76-06-01  Hydraulic pumps 
   77-20-01  Main transmission plates 
   90-26-12  Main rotor blades  (Apply the BIM inspection procedures of AD  
90-26-12 to all main rotor blades, regardless of part number installed 
on these CH-54B rotorcraft). 
    
  Department of the Army Safety of Flight (SOF) messages No.: 
   CH-54-82-01 MIL-H-5606 Hyd. fluid in lieu of MIL-H-83282 
  CH-54-82-02 One-time visual insp. torque arm on M/L/G struts 
  CH-54-82-03 One-time insp. of main gearbox support fittings 
  CH-54-82-04 One-time insp. T/R pitch link rod ends 
  CH-54-83-01 Insp. of I/G/B support fitting assy. 
  CH-54-83-02 Insp. of T/G/B mounting lugs 
  CH-54-84-01 One-time & repetitive insp. M/R/B 
  CH-54-84-02 One-time insp. for defective MS21251 brass turnbuckle 
  CH-54-85-01 One-time insp. of T/R servo links 
  CH-54-85-02 Insp. of M/R/B 
  CH-54-85-03 One-time insp. for correct installation of MGB Chip Detector/ 
      Strainer Assy. 
  CH-54-86-02 Insp. of upper link P/N 65104-11036 
  CH-54-86-03 Insp. of pressure switch 
  CH-54-90-01 One-time insp. of AN-320-6 nuts 
 
NOTE 9.  These helicopters are prohibited from carrying cargo for compensation or hire.  Carriage of 
cargo is limited to such cargo that is incidental to the helicopter owner’s/operator’s business 
that is other than air transportation. 
 
NOTE 10.  A restricted category helicopter may not be operated in a foreign country without the express 
written approval of that country. 
 
NOTE 11.  These helicopters have not been shown to meet the requirements of the applicable 
comprehensive and detailed Airworthiness Code as provided by annex 8, to the Convention of 
International Civil Aviation Organization. 
 
NOTE 12.  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 13.  Helicopters that do not have documentation showing they were surplus from an Armed Force 
of the United States are not eligible for certification under this type certificate.  Engines and 
appliances that do not have documentation showing they were surplus from an Armed Force 
of the United States are not eligible for installation on a helicopter under this type certificate.  
Helicopter(s), engine(s), and appliances that have records indicating time-in-service by a

H14NM  Page 8 of 8 
 
 
foreign military or a foreign government will be presumed to be ineligible for certification or 
installation under this type certificate.  This presumption may be overcome by the applicant 
substantiating, to the satisfaction of the FAA, through documentation, tests, computations, 
evaluations, analyses, or other means or methods that the helicopter, engine, or appliance, 
during its time-in-service by the foreign military or foreign government, was maintained by a 
extent and in a manner equal to that of an Armed Force of the United States. 
 
NOTE 14.  No person may be carried in this helicopter during flight unless that person is essential to the 
purpose of the flight. 
 
NOTE 15.  An FAA representative must perform a detailed inspection for workmanship, materials, and 
conformity with approved technical data, and will verify that a maintenance flight test has 
been completed for each aircraft by qualified maintenance personnel in accordance with the 
Department of the Army Technical Manual TM 1520-217-MFT-2 change 1, dated July 19, 
1985. 
 
NOTE 16.  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 (2, in force first)

- [AD 99-15-14](https://openairdocs.org/ad/99-15-14): Main Gearbox Assembly · Helicopter Transport Services CH-54B. Effective Aug 26, 1999
- [AD 76-06-01](https://openairdocs.org/ad/76-06-01): Hydraulic Pumps · Erickson Air-Crane S-64A, S-64E, S-64F and 12 more. Effective Mar 24, 1976

## Registered aircraft by registry model (OpenAirDocs)

- [Helicopter Transport Services CH-54B](https://openairdocs.org/model/helicopter-transport-services-ch-54b): 5 aircraft (registry code 4450003)
- [Sikorsky CH-54B](https://openairdocs.org/model/sikorsky-ch-54b): 2 aircraft (registry code 8142505)

## STCs approved under this data sheet (29)

- [STC SR02807SE](https://openairdocs.org/stc/SR02807SE): Installation of a Fly Away Tool box. Helicopter Transport Services LLC
- [STC SR11923SE](https://openairdocs.org/stc/SR11923SE): Installation of Helicopter Transport Services, LLC Shock Absorber HTS-2000. Helicopter Transport Services LLC
- [STC SR11810SE](https://openairdocs.org/stc/SR11810SE): Installation of Helicopter Transport Services, LLC External Load Indicating System. Helicopter Transport Services LLC
- [STC SR02777SE](https://openairdocs.org/stc/SR02777SE): Installation of a Load Beam. Helicopter Transport Services LLC
- [STC SR02754SE](https://openairdocs.org/stc/SR02754SE): Installation of External Cargo Container. Helicopter Transport Services, LLC
- [STC SR02717SE](https://openairdocs.org/stc/SR02717SE): Installation of Helicopter Transport Services Remote Fuel Sump System. Helicopter Transport Services LLC
- [STC SR09913AC](https://openairdocs.org/stc/SR09913AC): Installation of Composite Main Rotor Blade. Helicopter Transport Services LLC
- [STC SR02684SE](https://openairdocs.org/stc/SR02684SE): Installation of Helicopter Transport Services, LLC (HTS) lightweight firefighting refill pump. Helicopter Transport Services LLC
- [STC SR02671SE](https://openairdocs.org/stc/SR02671SE): Installation of HTS Attachable Service Pod. Helicopter Transport Services LLC
- [STC SR00004SE](https://openairdocs.org/stc/SR00004SE): Fabrication and installation of Erickson fire fighting system. Erickson Air Crane Inc. dba Erickson Air-Crane
- [STC SR00815SE](https://openairdocs.org/stc/SR00815SE): Fabrication and installation of Erickson Model Sea Snorkel system. Erickson Air Crane Inc. dba Erickson Air-Crane
- [STC SR01209SE](https://openairdocs.org/stc/SR01209SE): Installation of Replacement Electric Starter for Auxiliary Power Unit. Helicopter Transport Services LLC
- [STC SR01241SE](https://openairdocs.org/stc/SR01241SE): Installation of Concorde RG-390E Lead Acid Battery. Helicopter Transport Services LLC
- [STC SR02503SE](https://openairdocs.org/stc/SR02503SE): Installation of Additional Telemetry Unit (ATU). Helicopter Transport Services LLC
- [STC SR00928SE](https://openairdocs.org/stc/SR00928SE): Fabrication of Kawak Aviation Technologies, Inc. Model YB02854 Auxiliary Hydraulic System. Helicopter Transport Services LLC
- [STC SR02055SE](https://openairdocs.org/stc/SR02055SE): Replacement tail rotor blades, Part Numbers 65161-00001-041MII and/or 65161-00001-043MII. Helicopter Transport Services LLC
- [STC SH5653NM](https://openairdocs.org/stc/SH5653NM): Re-mounting of the turbine engines and reinforcement of the associated fuselage support structure with Erickson detuned engine mounting system (DEMS).. Erickson Incorporaated/dba Erickson Air-Crane
- [STC SR01084SE](https://openairdocs.org/stc/SR01084SE): Fabrication and installation of HTS-OCB-001 Electric Oil Blower Assembly. Helicopter Transport Services LLC
- [STC SR01268SE](https://openairdocs.org/stc/SR01268SE): Fabrication and installation of the Single Point Fixed Pendant.. Helicopter Transport Services LLC
- [STC SR01279SE](https://openairdocs.org/stc/SR01279SE): Installation of the Aero-Craft Utility Hydraulic Pump, Part Number (P/N) AP6VSPL. Helicopter Transport Services LLC
- [STC SR01376SE](https://openairdocs.org/stc/SR01376SE): Fabrication and installation of Helicopter transport Services, LLC offset pilot seat, offset collective control, and bubble door. Helicopter Transport Services LLC
- [STC SR01571SE](https://openairdocs.org/stc/SR01571SE): Fabrication and installation of Helicopter Transport Services, Inc. (HTSI) Automatic Flight Control System (AFCS). Helicopter Transport Services LLC
- [STC SR01741SE](https://openairdocs.org/stc/SR01741SE): Installation of an upgraded Fuel Quantity Indicating System.. Helicopter Transport Services LLC
- [STC SR01839SE](https://openairdocs.org/stc/SR01839SE): Remove the components from the hydraulic sled at Station 380 and install on the sled at Station 435.5, and remove the sled at Station 380,. Helicopter Transport Services LLC
- [STC SR02036SE](https://openairdocs.org/stc/SR02036SE): Modification of main rotor blade part number 6415-20601-041, -042, and -043. Helicopter Transport Services LLC
- [STC SR02224SE](https://openairdocs.org/stc/SR02224SE): Installation of the Helicopter Transport Services, LLC (HTS) lightweight firefighting refill pump, Part Number HTS2-PUMP. Helicopter Transport Services LLC
- [STC SR01618SE](https://openairdocs.org/stc/SR01618SE): Fabrication and Installation of Kawak Aviation Technologies Model 36100 Sea Snorkel. Helicopter Transport Services LLC
- [STC SR00931SE](https://openairdocs.org/stc/SR00931SE): Fabrication of Simplex Model 314 Fire Attack System. Simplex Manufacturing Company
- [STC SA4302NM](https://openairdocs.org/stc/SA4302NM): Installation of Electronics Int'l digital automatic engine analyzer.. Electronics International

---
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