# TCDS A20EA: De Havilland Aircraft of Canada Limited

- Type: Type certificate data sheet
- Status: Current
- Holder: De Havilland Aircraft of Canada Limited
- Revision: 6
- Revised: October 19, 2026
- Product: Aircraft, Large Airplane
- Certification basis: Part 25
- Registered aircraft: 7, by the registry models matched to it (OpenAirDocs)
- Data sheet PDF: https://openairdocs.org/files/sha256/09/3c/093cd700c9f4cc0a791784277e3fdaea9819db08291b3617eceab9975902c56c
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID195065933720261019141511.0001
- Page: https://openairdocs.org/tcds/A20EA

## Models (5)

As the data sheet lists them.

- DHC-7-101
- DHC-7-103
- DHC-7-102
- DHC-7-100
- DHC-7-1

## 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 
Rev. No. 6 1 1 1 5 
 
DEPARTMENT OF TRANSPORTATION 
FEDERAL AVIATION ADMINISTRATION 
 
TYPE CERTIFICATE DATA SHEET NO. A20EA 
This data sheet, which is a part of type certificate No. A20EA prescribes conditions and limitations under which the product for 
which the type certificate was issued meets the airworthiness requirements of the Federal Aviation Regulations. 
 
Type Certificate Holder De Havilland Aircraft of Canada Limited 
4100 Westwinds Drive NE 
Calgary, Alberta 
Canada T3J 4L2 
 
Type Certificate Holder Record Viking Air Limited 
9574 Hampden Road 
Sidney, British Columbia 
Canada V8L 5V5 
 
Bombardier Inc. 
Regional Aircraft 
123 Garratt Boulevard 
Downsview Ontario  
Canada M3K 1Y5 
 
I - Model DHC-7-1 (Formerly DHC-7) (Transport Category) Approved April 25, 1977 
 
Airspeed limits (See approved Aircraft Fl ight Manual for additional information) 
(CAS) 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
direct vision (D.V.) windows 
 
Maximum weights Ramp 41,300 lb. 
Takeoff 41,000 lb. 
Landing 39,000 lb. 
Zero Fuel 35,500 lb. 
 
C.G. range Landing Gear Extended 
Forward limit 25 percent MAC (Sta. 447.54) all weights 
Aft limit 40 percent MAC (Sta. 465.22) all weights 
A20EA 
Revision 6 
De Havilland 
DHC-7-1 
DHC-7-100 
DHC-7-101 
DHC-7-102 
DHC-7-103 
 
October 19, 2026
 m.p.h. knots 
Vmo (Max. Operating) 270 235 
Vb (Design Speed for max. gust intensit y 199 173 
Va (Maneuvering) 179 155 
Vmc (Minimum Control Speed   
for takeoff and climb)   
25° flap 75 65 
17° flap 79 69 
Vfe (Flaps Extended)   
17° deflection 173 150 
25° deflection 138 120 
45° defection 127 110 
Vle (Landing Gear Extended) 190 165 
Vlo (Landing Gear Operation) 173 150 
Maximum Speed for opening 189 164

2  A20EA 
Serial Nos. eligible S/N 1 and 2 
 
Approved Publications Aircraft Definition AEROC 7.1.AC.1 Section 3 
Flight Manual PSM 1-7-1A 
Structural Component Life 
and Inspection Requirements PSM 1-7-2 Chapter 5 
 
 
II - Model DHC-7-100 (Transport Category) Approved November 9, 1977 
DHC-7-101 (Transport Category) Approved May 2, 1979 
DHC-7-102 (Transport Category) Approved May 2, 1979 
DHC-7-103 (Transport Category) Approved May 2, 1979 
The DHC-7-101 is the same as the DHC-7-100 except that a large cargo door in the forward left hand side of the cabin has 
replaced the Type III emergency exit in that position. Two additional Type III exits are located on each side at 
approximately the mid cabin. A cargo/pa ssenger interior with a structurally strengthened cabin floor is standard. 
 
The DHC-7-103 is the same as the DHC-7-102 except for those same differences between the DHC-7-101 and DHC-7-100 
stated above. (See Note 4 for conversion from -100 to -102 or from -101 to -103.) 
 
Airspeed limits (See approved Aircraft Flight Manual for add itional information) 
(CAS)  m.p.h. knots 
 Vmo (Max. Operating) 270 235 
 Vb (Design Speed for max. 201 175 
 gust intensity)   
 Va (Maneuvering) 179 155 
 Vmc (Minimum Control Speed   
 for takeoff and climb)   
 25° flap 75 65 
 15° flap 79 69 
 Vfe (Flaps Extended)   
 15° deflection 173 150 
 25° deflection 138 120 
 45° deflection 127 110 
 Vle (Landing Gear Extended) 190 165 
 Vlo (Landing Gear Operation) 173 150 
 Maximum Speed for opening 189 164 
direct vision (D.V.) windows 
 
Maximum weights  DHC-7-100/-101 DHC-7-102/-103 
Ramp  43,300 lb.  44,100 lb. 
Takeoff 43,000 lb. 44,000 lb. 
Landing 41,000 lb. 42,000 lb. 
Zero Fuel 39,000 lb. 39,000 lb. 
 
C.G. range DHC-7-100/- 101 
(Landing Gear Weight Forward Limits Aft. Limits 
Extended)  lb.   % MAC (Sta.)  % MAC (Sta.) 
all weights to 42,000  25% (447.54)  43% (468.75) 
 
42,000 to 43,000 Linear variation from 
25 to 26% (448.72) 43% (468.75) 
 
43,000 to 43,300 26% ( 448.72) 43% (468.75) 
 
DHC-7-102/-103 
all weights to 42,000 25% (447.54) 43% (468.75) 
 
42,000 to 44,000 Linear variation from 
25 to 27% (449.90) 43% (468.75) 
 
44,100 27% (449.90) 43% (468.75) 
 
 
Serial Nos. eligible S/N 3 and subsequent 
(See Note 4)

3  A20EA 
Approved  DHC-7-100/-101 DHC-7-102/-103 
Publications Aircraft Definition AEROC 7.1.AC.1 AEROC 7.1.AC.1 
  Section 4 Section 5 
 Flight Manual PSM 1-71-1A* PSM-17-1A 
 Structural Component   
 Life and Inspection   
 Requirements PSM 1-7-2 Chapter 5 PSM 1-7- 2 
   Chapter 5 
*Note: Add Supplement 8 for DHC-7-101/- 103 airplanes (cargo/passenger interior) 
 
DATA PERTINENT TO ALL MODELS EXCEPT AS INDICATED 
Engines 4-Pratt and Whitney Aircraft of  Canada, Limited PT6A-50 (T.C. E4EA) 
 
Fuel Fuels conforming to Pratt and Whitney Aircraft of Canada Limited 
Specification No. PWA 522 Kerosene Type Jet A, Jet A-1, JP-4, JP-5, or Jet B. 
 
Oil Pratt and Whitney Aircraft of Canada approved oils to conform to Specification 
No. PWA-521 Type II. 
 
Engine limits Engine Rating (Power Limits) 
Takeoff (5 min.) 1120 s.h.p. 
Max. Continuous 973 s.h.p. 
 
Temperature Limits (Inter Turbine) 
Takeoff 1472°F  (800°C) 
Max. Continuous 1472°F (800°C) 
 
Torque Limits 
Takeoff 4860 ft. -lb. 
Max. Continuous 4860 ft. -lb. 
 
Gas Generator Limits 
Takeoff (5 min.) 38,500 r.p.m. (102.7 percent) 
Max. Continuous 38, 100 r.p.m. (101.6 percent) 
 
Power Turbine Output 
Shaft r.p.m. 
Takeoff 1210 r.p.m. 
Max. Continuous 1210 r.p.m. 
 
Propeller and 4-Hamilton Standard 24 PF-305 
propeller limits 
Blade PFA12B1-9B 
Diameter 11 ft. 3 in. nominal 
 
Pitch settings at 0.75 radius: 
Feather 78.0° 
Flight fine 6.5° 
Ground fine - 8.5° 
Full reverse -18.7° 
 
Propeller (Np) - Takeoff 1210 r.p.m. 
Max. Continuous  1210 r.p.m. 
 
Datum Station 0 is 248.0 inches forward of the jig point marked by a plate located on airplane 
center line on the underside of the fuselage. 
 
Mean aerodynamic chord (MAC) 117.84 in. (L eading edge of M.A.C. + 418.08 in.)

4  A20EA 
 
Leveling means Longitudinal: Pads on fore an d aft faces of right hand aft door opening. 
 Lateral: Levelling bar on forward face of bulkhead (Station 147.0 in. 
  in nose compartment). 
 
Minimum crew 2 - (pilot and copilot) 
 
Maximum occupants DHC-7-100/-102 (Passenger Carrying Interior) 
Not to exceed 59, including 2 pilots, 2 attendants and 1 check pilot. (54 passengers 
when fitted with an approved interior). 
 
DHC-7-101/-103 (Cargo/Passenger Interior) 
Not to exceed 55, including 2 pilots, 2 attendants and 1 check pilot. (50 passengers 
when fitted with an approved interior). 
 
Aft baggage or  S/N 1 and Subsequent; 2200 lb. with Mod. 7/1156 incorporated and 
cargo limitations moment arm +735.0 fo r uniformly distributed loading. 
 
S/N 3 and Subsequent; 2800 lb. with S007036 interior incorporated. 
 
 Floor Loading (max.) Aisles Under Seats  
DHC-7-1/-100/-102 75 p.s.f. 37.5 p.s.f. 
DHC-7-101/-103 200 p.s.f. 200 p.s.f. 
Fuel capacity  U.S. Gal. Imp. Gal. Weight-lb. Moment Arm-in. 
 TOTAL     
 2 inner tanks (ea). 315 262 2142 +462.0 
 2 outer tanks (ea). 425 354 2890 +462.0 
 Total 1480 1232 10,064 +462.0 
 UNUSABLE     
 2 inner tanks (ea). 4.6 3.8 31 +462.0 
 2 inner tanks (ea). 5.6 4.7 38 +462.0 
 Total 20.4 17.0 139 +462.0 
Oil capacity USABLE 1.0 0.8 7.5 +396.0  (per 
Inboard Engine) 
+411.4 
    Outboard Engine 
UNUSABLE     
Inboard Engine 3.4 2.7 25.5 + 396.0 
Outboard Engine 3.25 2.6 24.4 +411.4 
 
Maximum operating 
 
25,000 ft. (when supplementary breathing e
 
uipment is provid
 
d for all occupants). 
altitude 20, 400 ft. (limited by cabin pressure altitude requirements of FAR 25.841(a)). 
Maximum ambient temperature ISA (Sea Level) +36.6°C. (+66°F) 
Control surface movements See DeHavilland Report AEROC 7.2.AC.0. Section 1.3 Page 1, Issue 2. 
 
Generator limits D.C. Generators: 
Ground 80 percent (200 amp.) 
Flight 100 percent (250 amp.) 
 
A.C. Generators: 
Ground  15 amp. per phase at 5°C to 
3 amp. per phase at 52°C (linear variation) 
Flight 30 amp. per phase at 5°C to 
15 amp. per phase at 52°C (linear variation) 
 
Serial Nos. eligible S/N 1 and subsequent

5  A20EA 
Import eligibility A U.S. Airworthiness Certificate may be issued on the basis of the Canadian Department 
of Transport "Certificate of Airworthiness for Export" signed by or for the Minister of 
Transport. This form must contain the following statement: "This certifies that the 
aircraft described below has been manufactured in conformity with data forming the 
basis for the D.O.T. Aircraft Type Approval No. A-120, Issue 3, dated August 30, 1979, 
(FAA Type Certificate No. A20EA). 
 
Certification basis FAR Part 25 dated February 1, 1965, plus Amendments 25-1 through 25-31 inclusive. 
 
Additional FAA Requirements: 
(a) FAR Part 36 dated December 1, 1969, plus Amendments 36-1 through 36-5 
inclusive. 
(b) SFAR 27 dated February 1, 1974, plus Amendments SFAR 27-1 and 27-2. 
(c) Special conditions No. 25-53-EA-10 dated May 7, 1973, (FAA Docket No. 12810). 
(1) Conventional mode of operation 
(2) STOL mode of operation. 
 
Date of Application for Type Approval April 30, 1972. 
Type Certificate A20EA issued April 25, 1977. 
 
Compliance with the following optional requirement has been established: 
Ice Protection FAR 25.1419 
Ditching FAR 25.801 
 
Part 26- Continued Airworthiness and Sa fety Improvements for Transport Category 
Airplanes: 
Based on § 21.101(g) for changes to TCs,  applicable provisions of part 26 are 
included in the certification basis. For any future Part 26 amendments, the holder of 
this TC must demonstrate compliance with the applicable sections. 
 
Compliance has been found for 14 CFR § 26.11 (Amdt. No. 26-0) 
 
Equipment The basic required equipment as prescribed in the applicable airworthiness regulations 
(see Certification Basis) must be installed in the aircraft for certification. 
 
NOTE 1. (a) Current weight and balance report, including list of equipment included in the certified empty weight, 
and loading instructions when necessary, must be provided for each aircraft at the time of original 
certification. 
 
(b) System or unusable fuel, which must be included in the empty weight, is the amount of fuel required to 
fill the system plumbing and tank to the undrainable level (1.5 gal. total), plus unavailable fuel in the 
fuel tanks (18.9 gal. total). The total amount of  "system fuel" 20.4 gal. total, 139 lb. (+462.0). 
 
(c) System oil, which must be included in empty weight, is the amount of oil necessary for engine 
lubrication and propeller operation. The tota l amount of "system oil" is as follows: 
 
6.8 gal. (total) contained in inboard engines, 5.10 lb. (+396.0) 
6.5 gal. (total contained in outboard engines, 48.8 lb. (+411.4) 
 
NOTE 2. All placards required in the approved flight ma nual must be installed in the appropriate location. 
 
NOTE 3. For models -1, -100, -101, -102, and -103 airplane s the retirement times recorded in DeHavilland Manual 
PSM 1-7-2 Chapter 5 must be complied with. 
 
NOTE 4. The DHC-7-100 may be converted to the -102 or the DHC-7-101 to the -103 by incorporation of the 
following modifications: 
 
DeHavilland Modification No. 7/1271 (Rear Fuselage), 7/1337 
(Inboard Nacelle) and 7/1393 (Fore Rudder). 
 
 
 
.....END.....
```

## ADs (76, first 50, in force first)

- [AD 2026-13-02](https://openairdocs.org/ad/2026-13-02): Navigation · Airbus Canada Limited Partnership 18, 49-46, 80-A and 555 more. Effective Jul 1, 2026
- [AD 2023-10-02](https://openairdocs.org/ad/2023-10-02): Indicating/Recording System, Navigation · Boeing 18, 23, 35 and 1,060 more. Effective May 26, 2023
- [AD 2015-20-06](https://openairdocs.org/ad/2015-20-06): Nacelles/Pylons · Viking Air DHC-7-1 and DHC-7-100. Effective Nov 10, 2015
- [AD 2010-23-21](https://openairdocs.org/ad/2010-23-21): Fuel · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective Dec 22, 2010
- [AD 2009-06-03](https://openairdocs.org/ad/2009-06-03): Lamp holder · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective Apr 20, 2009
- [AD 2007-20-02](https://openairdocs.org/ad/2007-20-02): SM-200 servo drive units · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective Oct 31, 2007
- [AD 2006-11-02](https://openairdocs.org/ad/2006-11-02): Corrosion prevention and control program (CPCP) · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective Jun 27, 2006
- [AD 2006-12-04](https://openairdocs.org/ad/2006-12-04): Airworthiness Limitations · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective Jun 21, 2006
- [AD 2005-16-03](https://openairdocs.org/ad/2005-16-03): Lower wing skins · Viking Air DHC-7-100, DHC-7-101, DHC-7-102 and 1 more. Effective Sep 6, 2005
- [AD 2000-02-07 R1](https://openairdocs.org/ad/2000-02-07-R1): Locking Pin Fittings of Baggage Door and Locking Pin Housings of Fuselage · Viking Air DHC-7-100, DHC-7-101, DHC-7-102 and 1 more. Effective Jun 15, 2004
- [AD 2002-06-06](https://openairdocs.org/ad/2002-06-06): Rockwell Collins TDR-94 and TDR-94D Mode S transponders · Bombardier ATR42-200, ATR42-300, ATR42-320 and 20 more. Effective May 3, 2002
- [AD 2001-12-11](https://openairdocs.org/ad/2001-12-11): Ground Spoiler Actuators · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective Jul 24, 2001
- [AD 2001-08-05](https://openairdocs.org/ad/2001-08-05): Main Landing Gear Hydraulic Oil Leaks · Viking Air DHC-7-100, DHC-7-101, DHC-7-102 and 1 more. Effective May 29, 2001
- [AD 2000-16-03](https://openairdocs.org/ad/2000-16-03): Weight and Balance Check · Bombardier DHC-8-101, DHC-8-102, DHC-8-103 and 10 more. Effective Sep 21, 2000
- [AD 99-26-11](https://openairdocs.org/ad/99-26-11): Lower Longerons on Inboard Nacelles · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective Jan 24, 2000
- [AD 99-19-18](https://openairdocs.org/ad/99-19-18): AFM - Limitations Section - Ice Protection Sys. · Bombardier DHC-8-101, DHC-8-102, DHC-8-103 and 14 more. Effective Dec 27, 1999
- [AD 99-03-07](https://openairdocs.org/ad/99-03-07): Attachment Bolts of Wing-to-Fuselage Fittings · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective Mar 11, 1999
- [AD 98-25-09](https://openairdocs.org/ad/98-25-09): MLG Brake Shuttle Valves · Bombardier DHC-8-101, DHC-8-102, DHC-8-103 and 11 more. Effective Jan 14, 1999
- [AD 98-23-12](https://openairdocs.org/ad/98-23-12): Maintenance Manual PSM 1-7-2 · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective Dec 17, 1998
- [AD 97-20-03](https://openairdocs.org/ad/97-20-03): AFM - Limitations Section - Power Levers · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective Oct 27, 1997
- [AD 97-04-15](https://openairdocs.org/ad/97-04-15): Fire Extinguisher Bottle Cartridges · Bombardier DHC-8-101, DHC-8-102, DHC-8-103 and 24 more. Effective Mar 7, 1997
- [AD 96-25-08](https://openairdocs.org/ad/96-25-08): Inspect for Black Film Insulation of Air Conditioning System · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective Feb 3, 1997
- [AD 96-25-16](https://openairdocs.org/ad/96-25-16): Power Control Relay of Emergency Lights · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective Feb 3, 1997
- [AD 96-25-12](https://openairdocs.org/ad/96-25-12): Auxiliary Power Units · BAE Systems HS 748 Series 2A, HS 748 Series 2B, 707-100 Long Body and 74 more. Effective Jan 13, 1997
- [AD 95-26-15 R1](https://openairdocs.org/ad/95-26-15-R1): Traffic Alert and Collision Avoidance Systems · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 159 more. Effective Dec 26, 1996
- [AD 96-18-19](https://openairdocs.org/ad/96-18-19): Skin Panels of Fuselage · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective Oct 15, 1996
- [AD 96-11-06](https://openairdocs.org/ad/96-11-06): Emergency Lights Circuitry · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective Jun 28, 1996
- [AD 96-09-25](https://openairdocs.org/ad/96-09-25): AFM - Icing · Bombardier DHC-8-101, DHC-8-102, DHC-8-103 and 11 more. Effective Jun 11, 1996
- [AD 94-17-08](https://openairdocs.org/ad/94-17-08): Modify Firewall Terminal Block Assembly · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective Sep 21, 1994
- [AD 94-14-19](https://openairdocs.org/ad/94-14-19): Hydraulic Selector Valve · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective Jul 26, 1994
- [AD 94-09-05](https://openairdocs.org/ad/94-09-05): Adapter Plates · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective Jun 6, 1994
- [AD 94-01-04](https://openairdocs.org/ad/94-01-04): Traffic Alert and Collision Avoidance System · Airbus A300 B4-601, A300 B4-603, A300 B4-605R and 136 more. Effective Feb 4, 1994
- [AD 94-01-05](https://openairdocs.org/ad/94-01-05): Traffic Alert and Collision Avoidance System II Processors · Airbus A340-211, A340-212, A340-213 and 85 more. Effective Feb 4, 1994
- [AD 94-01-06](https://openairdocs.org/ad/94-01-06): Traffic Alert and Collision Avoidance System II Processors · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 176 more. Effective Feb 4, 1994
- [AD 93-15-07](https://openairdocs.org/ad/93-15-07): Main Landing Gear Upper Lockstrut Sub-Assembly · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective Aug 9, 1993
- [AD 93-11-06](https://openairdocs.org/ad/93-11-06): Wing Inboard Leading Edge · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective Jul 22, 1993
- [AD 93-11-08](https://openairdocs.org/ad/93-11-08): Actuator Attachment Brackets Inspection · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective Jul 22, 1993
- [AD 93-11-09](https://openairdocs.org/ad/93-11-09): Nose Landing Gear Drag Strut Attachment Fitting · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective Jul 22, 1993
- [AD 93-06-07](https://openairdocs.org/ad/93-06-07): Quantity Limiting Valves · Bombardier DHC-8-102, DHC-8-103, DHC-8-301 and 6 more. Effective May 12, 1993
- [AD 93-04-02](https://openairdocs.org/ad/93-04-02): Transponders · BAE Systems ATP, CL-600-2A12 (CL-601), DHC-8-101 and 23 more. Effective Mar 26, 1993
- [AD 93-01-01](https://openairdocs.org/ad/93-01-01): Ohm Readings Inspection · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective Feb 25, 1993
- [AD 92-27-15](https://openairdocs.org/ad/92-27-15): Elevator Servo Drum Assembly · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective Feb 8, 1993
- [AD 92-27-03](https://openairdocs.org/ad/92-27-03): Engine Nacelles · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective Jan 22, 1993
- [AD 92-20-01](https://openairdocs.org/ad/92-20-01): Main Landing Gear Emergency Down Release Cables · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective Nov 17, 1992
- [AD 92-14-10](https://openairdocs.org/ad/92-14-10): Ground Spoiler Control System · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective Aug 20, 1992
- [AD 92-12-04](https://openairdocs.org/ad/92-12-04): Flap Track Dye Penetrant Inspection · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective Jul 24, 1992
- [AD 91-10-01](https://openairdocs.org/ad/91-10-01): Traffic Alert and Collision Avoidance Systems · ATR - GIE Avions de Transport Régional ATR42-200, ATR42-300, 727-100 Series and 28 more. Effective Mar 10, 1992
- [AD 91-18-20](https://openairdocs.org/ad/91-18-20): Main Landing Gear · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective Oct 15, 1991
- [AD 91-18-21](https://openairdocs.org/ad/91-18-21): Flap Track Support Fittings · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective Oct 15, 1991
- [AD 91-09-08](https://openairdocs.org/ad/91-09-08): Rear Spar Frame And Nacelle Joint · Viking Air DHC-7-1, DHC-7-100, DHC-7-101 and 2 more. Effective May 28, 1991

All 76: https://openairdocs.org/tcds/A20EA/ads.md

## Registered aircraft by registry model (OpenAirDocs)

- [Dehavilland DHC-7-102](https://openairdocs.org/model/dehavilland-dhc-7-102): 5 aircraft (registry code 2802708)
- [Dehavilland DHC-7-103](https://openairdocs.org/model/dehavilland-dhc-7-103): 2 aircraft (registry code 2802710)
- [Boeing DHC-7-102](https://openairdocs.org/model/boeing-dhc-7-102): 0 aircraft (registry code 1386004)
- [Dehavilland DHC-7-1](https://openairdocs.org/model/dehavilland-dhc-7-1): 0 aircraft (registry code 2802702)
- [Dehavilland DHC-7-100](https://openairdocs.org/model/dehavilland-dhc-7-100): 0 aircraft (registry code 2802704)
- [Dehavilland DHC-7-101](https://openairdocs.org/model/dehavilland-dhc-7-101): 0 aircraft (registry code 2802706)

## STCs approved under this data sheet (109, first 50)

- [STC ST01305WI-D](https://openairdocs.org/stc/ST01305WI-D): Modification of a Collins ALT-50A or ALT-55B Radio Altimeter system installation to a Collins ALT-1000 or ALT-4000 Radio Altimeter system installation in accordance with Collins Drawing Index as listed on AML No. ST01305WI-D, Revision -, or later FAA approved revision.. Rockwell Collins Inc
- [STC ST04328NY](https://openairdocs.org/stc/ST04328NY): The Manufacture and Installation of Exterior Placards, Labels and Signs is to be performed, installed. Libellule Monde Inc
- [STC ST03875NY](https://openairdocs.org/stc/ST03875NY): Installation of interior placards, signs and markings. Libellule Monde Inc.
- [STC SA2622NM](https://openairdocs.org/stc/SA2622NM): Installation of Precise Flight Pulselite Control Unit in landing/taxi system. (767-200 B17) (DHC-8 101). Precise Flight Inc.
- [STC ST03885AT](https://openairdocs.org/stc/ST03885AT): Installation of an Avionica, Inc. avCM Cellular Module. Aircraft Systems and Manufacturing Inc.
- [STC SA3947NM](https://openairdocs.org/stc/SA3947NM): Installation of Floor Proximity Emergency Escape Path Marking System.. Bruce Aerospace Inc.
- [STC ST02472AT](https://openairdocs.org/stc/ST02472AT): Installation of a mini Quick Access Recorder (QAR) model MKI, MKII, or MKIII. Aircraft Systems and Manufacturing Inc.
- [STC ST10398SC](https://openairdocs.org/stc/ST10398SC): Installation of a WX-1000 Stormscope.. Sierra Nevada Company LLC
- [STC ST01893AT](https://openairdocs.org/stc/ST01893AT): Installation of SAF-T-GLO Aerospace's photoluminescent floor proximity emergency escape path marking system (FPEEPMS). STG Aerospace Inc.
- [STC ST01842AT](https://openairdocs.org/stc/ST01842AT): Installation of a CAS-81 TCAS.. Honeywell International Inc
- [STC ST01862AT](https://openairdocs.org/stc/ST01862AT): Installation of a dual MST-67 Mode S Transponder System.. Honeywell International Inc
- [STC ST02558NY](https://openairdocs.org/stc/ST02558NY): Installation of Sky Connect Tracking System. Honeywell International Inc
- [STC ST02635LA](https://openairdocs.org/stc/ST02635LA): Modification to replace the existing Mode S Transponder system with the ACSS NXT-600 Mode S Transponder with ADS-B Out. Aviation Communication and Surveillance Systems (ACSS) LLC
- [STC ST04340NY](https://openairdocs.org/stc/ST04340NY): Installation of TCAS 7.1 (ACAS II) upgrade of Prior Existing TCAS 7.0. Scandinavian Avionics Design ApS
- [STC ST02636LA](https://openairdocs.org/stc/ST02636LA): Modification to upgrade the existing XS-950 Mode S Transponder system to add ADS-B Out. Aviation Communication and Surveillance Systems (ACSS) LLC
- [STC ST00347BO](https://openairdocs.org/stc/ST00347BO): Modification to upgrade a BendixKing CAS 67A TCAS II system to CAS 67B TCAS II Change 7.1. Pro Star Aviation, LLC
- [STC ST02595SE](https://openairdocs.org/stc/ST02595SE): Installation of a Supplement Lighting System manufactured and installed. Aviation Specialties Unlimited Inc.
- [STC ST00423WI](https://openairdocs.org/stc/ST00423WI): Installation of Keddeg Company 21BC111 Coalescer Assembly.. Purolator Facet, Inc
- [STC ST02632LA](https://openairdocs.org/stc/ST02632LA): Modification to replace the existing Mode S Transponder system with ACSS NXT-700 Mode S Transponder with ADS-B Out and optionally install ACSS NXG-900 GPS as a position source for ADS-B Out. Aviation Communications and Surveillance Systems
- [STC ST02609LA](https://openairdocs.org/stc/ST02609LA): Modification to replace the existing Mode S Transponder system with ACSS NXT-700 Mode S Transponder with ADS-B Out. Aviation Communication and Surveillance Systems (ACSS) LLC
- [STC ST03776NY](https://openairdocs.org/stc/ST03776NY): Modification to upgrade existing Rockwell Collins TCAS (Model: TTR-920, TTR-921, and TTR-4000) at VERSION 7.0 to Rockwell Collins TCAS (Model: TTR-921, TTR-4000, and TTR-4100) at VERSION 7.1 (ACAS II). Scandinavian Avionics Design ApS
- [STC ST00881WI-D](https://openairdocs.org/stc/ST00881WI-D): Modification of a TCAS II system installation to Change 7.0 or Change 7.1. Rockwell Collins Inc
- [STC ST00090MC](https://openairdocs.org/stc/ST00090MC): Installation of a Raytheon APX-119 IFF Transponder System. King Aerospace Inc.
- [STC SA3702SW](https://openairdocs.org/stc/SA3702SW): Installation of Floor Proximity Lighting System in accordance with Vista Manufacturing, Inc., Drawing List DH7-1000, Revision D, Dated December 02, 1986 or later FAA approved revision.. BF Goodrich Aerospace
- [STC ST00180DE](https://openairdocs.org/stc/ST00180DE): Installation of Long Range Fuel System for the Viking Air Limited Model DHC-7-102 and 103 airplane in accordance with Branson Aircraft Corporation (BAC) Drawing 47100, Rev. F, dated March 10, 2011, or later FAA approved revision.. Northrop Grumman Systems Corporation
- [STC ST01202WI-D](https://openairdocs.org/stc/ST01202WI-D): Modification of an existing FAA approved Collins TPR-720, TPR-900 or TPR-901 Mode S transponder installation in Part 25 Aircraft using Collins Drawing Index as listed on AML No. ST01202WI-D, latest FAA approved revision.. Rockwell Collins Inc
- [STC ST00673WI-D](https://openairdocs.org/stc/ST00673WI-D): Modification of Collins VHF-22A/VHF-22B VHF COMM Receiver Transmitter with CTL-22 Control Pro Line II System Installation to a Collins VHF-22C/VHF-22D VHF COMM Receiver Transmitter with CTL-22C Control 8.33 kHz Pro Line II System installation.. Rockwell Collins Inc
- [STC ST00682WI-D](https://openairdocs.org/stc/ST00682WI-D): Modification of Collins VHF-20/VHF-20A/VHF-20B VHF COMM Receiver Transmitter with CTL-20 Control Pro Line I System Installation to a Collins VHF-22C/VHF-22D VHF COMM Receiver Transmitter with CTL-22C Control 8.33 kHz Pro Line II System Installation in accordance with Collins Installation Instructions as listed on AML No. ST00682WI-D, Revision -, or later FAA approved revisions.. Rockwell Collins Inc
- [STC ST02562NY](https://openairdocs.org/stc/ST02562NY): The installation of Battery Powered Refuel System to be done in accordance with Voyageur Airways Limited Design Change Summary DCS 07-003, Rev. N/C, dated April 10, 2008, or later Transport Canada approved revision.. Voyageur Airways Limited
- [STC SA2752CE-D](https://openairdocs.org/stc/SA2752CE-D): Installation of Collins Traffic Alert and Collision Avoidance System TCAS-94 (TCAS II).. Rockwell Collins Inc
- [STC ST01142WI-D](https://openairdocs.org/stc/ST01142WI-D): Modification of a single or dual Collins TDR-94 or TDR-94D Mode S Transponder System installation with CTL-92 control head to a Flight ID capable Collins TDR-94 or TDR-94D Mode S Transponder System installation with CTL-92E control head.. Rockwell Collins Inc
- [STC ST00844WI-D](https://openairdocs.org/stc/ST00844WI-D): Modification of Collins TCAS II or TCAS-94 (TCAS II) system installation with Collins TTR-920 Change 7.0 Receiver Transmitter to a Collins TCAS II or TCAS-94 OTCAS II) system installation with Collins TTR-921 or Collins TTR-4000 Change 7.0 TCAS Receiver Transmitter.. Rockwell Collins Inc
- [STC SA1048NE](https://openairdocs.org/stc/SA1048NE): Installation of Honeywell EDZ-805 E.F.I.S., UNS-1B, and avionics. (DHC-7-102 S/N 048, 095, DHC-7-103 S/N 104). Sierra Nevada Corporation/Integrated Mission Systems
- [STC SA1049NE](https://openairdocs.org/stc/SA1049NE): Installation of ESL special mission configuration. (DHC-7-103 S/N 104, DHC-7-102 S/N 048). Sierra Nevada Corporation/Integrated Mission Systems
- [STC SA1072NE](https://openairdocs.org/stc/SA1072NE): Modification in accordance with Delta Engineering Corporation Master Drawing List No. 93-8, Revision D, dated March 26, 1983 which removes the “Daylight Operations Only” limitation from Supplemental Type Certificates (STC’s) SA1048NE, SA1049NE, and SA1082NE.. Sierra Nevada Corporation/Integrated Mission Systems
- [STC SA9020NM-D](https://openairdocs.org/stc/SA9020NM-D): Increase in Ramp Weight to 49,000 pounds.. Sierra Nevada Corporation/Integrated Mission Systems
- [STC ST00412NY](https://openairdocs.org/stc/ST00412NY): Installation of composite type equipment racks and workstations.. Sierra Nevada Corporation/Integrated Mission Systems
- [STC ST00413NY](https://openairdocs.org/stc/ST00413NY): Installation of Sensor Covers.. Sierra Nevada Corporation/Integrated Mission Systems
- [STC ST00414NY](https://openairdocs.org/stc/ST00414NY): Installation of Wing Tip Antenna.. Sierra Nevada Corporation/Integrated Mission Systems
- [STC ST00415NY](https://openairdocs.org/stc/ST00415NY): Installation of Koolatron Storage Box.. Sierra Nevada Corporation/Integrated Mission Systems
- [STC ST00416NY](https://openairdocs.org/stc/ST00416NY): Installation of Chemical Toilet.. Sierra Nevada Corporation/Integrated Mission Systems
- [STC ST00417NY](https://openairdocs.org/stc/ST00417NY): Installation of Host Avionics, Mission Avionics, Special Mission Interior, Tri-Port, Aircraft Surveillance equipment.. Sierra Nevada Corporation/Integrated Mission Systems
- [STC ST00453NY](https://openairdocs.org/stc/ST00453NY): Installation of PME-1 Cooling System.. Sierra Nevada Corporation/Integrated Mission Systems
- [STC ST00460NY](https://openairdocs.org/stc/ST00460NY): Installation of two single place side facing seats.. Sierra Nevada Corporation/Integrated Mission Systems
- [STC ST01071AT](https://openairdocs.org/stc/ST01071AT): Installation of provisions for a Hughes HISAR Moving Target Radar System.. Sierra Nevada Corporation/Integrated Mission Systems
- [STC ST01216NY](https://openairdocs.org/stc/ST01216NY): Installation of UNS-1D Flight Management System.. Sierra Nevada Corporation/Integrated Mission Systems
- [STC ST01218NY](https://openairdocs.org/stc/ST01218NY): Installation of a Baker Electronics Audio System for the cockpit jump seat.. Sierra Nevada Corporation/Integrated Mission Systems
- [STC ST01235NY](https://openairdocs.org/stc/ST01235NY): Host Avionics Installation. Approved for DHC-7-102 serial number 34 ONLY.. Sierra Nevada Corporation/Integrated Mission Systems
- [STC ST01237NY](https://openairdocs.org/stc/ST01237NY): Removal of Altimeter 1/2 switching circuitry. Modification can only be performed with Configuration A of STC ST00417NY.. Sierra Nevada Corporation/Integrated Mission Systems
- [STC ST01238NY](https://openairdocs.org/stc/ST01238NY): Removal of WF-360 sensor and installation of Wescam Model 20 sensor.  Configuration A of STC ST00417NY must be installed with this mod.. Sierra Nevada Corporation/Integrated Mission Systems

All 109: https://openairdocs.org/tcds/A20EA/stcs.md

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