# TCDS A-807: Acro Aeronautical Services Ltd

- Type: Type certificate data sheet
- Status: Current
- Holder: Acro Aeronautical Services Ltd
- Revision: 13
- Revised: February 15, 2022
- Product: Aircraft, Small Airplane
- Certification basis: CAR 10
- Registered aircraft: 3, by the registry models matched to it (OpenAirDocs)
- Data sheet PDF: https://openairdocs.org/files/sha256/af/9d/af9d7c6876027ad3878332a7b7765514b584f284b614c6d6327cd4d016c71847
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4B6B72796825DA9B862587F3006BE36F.0001
- Page: https://openairdocs.org/tcds/A-807

## Models (10)

As the data sheet lists them.

- D.H. 104 Dove Series 8A
- D.H. 104 Dove Series 7A
- D.H. 104 Dove Series 1A
- D.H. 104 Dove Series 5A
- D.H. 104 Dove Series 7AXC
- D.H. 104 Dove Series 8AXC
- D.H. 104 Dove Series 2A
- D.H. 104 Dove Series 5BA
- D.H. 104 Dove Series 6BA
- D.H. 104 Dove Series 6A

## 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 
A-807 
Revision 13 
Acro Aeronautical 
D.H. 104 Dove 
Series 1A, 2A, 5A, 5BA, 
6A, 6BA, 
7A, 7AXC, 
8A, 8AXC 
February 15, 2022 
TYPE CERTIFICATE DATA SHEET No. A-807 
This Data Sheet, which is part of Type Certificate No. A-807 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 Acro Aeronautical Services Ltd. 
Culham Science Centre, 
Abingdon, Oxon, OX14 3DB. 
United Kingdom 
Type Certificate Holder Record The de Havilland Aircraft Co. Ltd. transferred TC A-807 to Hawker Siddeley Group in 
1960. 
Hawker Siddeley Group transferred TC A-807 to British Aerospace plc (BAe) in 1977. 
British Aerospace plc (BAe) transferred TC A-807 to BAE Systems plc in 1999. 
BAE Systems transferred TC A-807 to de Havilland Support Ltd. in 2000. 
de Havilland Support Ltd. transferred TC A-807 to Acro Aeronautical Services Ltd. on 
February 25, 2015. 
I - Model D.H. 104 Dove Series 1A and 2A (Normal Category) 
Engines 2 de Havilland Gypsy Queen 70-4 
Fuel Minimum grade 100/130 
Maximum lead content 5.5 mls. TEL/Imperial Gallon 
Engine limits Maximum continuous, 
(Sea Level) 40.0 in. Hg., 2600 rpm (315 bhp) 
(Constant manifold pressure to full throttle height of 5,000 ft) 
40.0 in. Hg., 2600 rpm (330 bhp) 
Maximum weak mixture, 
(Sea level) 34.0 in. Hg., 2400 rpm (245 bhp) 
(Constant manifold pressure to full throttle height of 8,000 ft.) 
34.0 in. Hg., 2400 rpm (265 bhp) 
Maximum takeoff (5 min.), 
42.0 in. Hg., 2800 rpm (340 bhp) 
Maximum overspeed (20 sec.), 
42.0 in. Hg., 2940 rpm 
Propellers Types: 3-bladed (metal) (These details are applicable 
Pitch: Variable (to all the approved propellers 
Diameter: 7' 6" (listed below.) 
Page No. 1 2 3 4 5 6 7 8 9 
Rev. No. 13 12 12 12 11 13 12 11 12

1 I I I I I I I 
-
1 I I I I I I 
A-807 2 
Propellers (cont’d) 
Design No. Hub Assembly Blade Assembly 
PD 116/312/1 PPX 31212 PPR 2111368TA-57 
PD 116/312/2 PPX 31213 PPR 2111368TA-57 
PD 117/312/3 PPX 31212 PPR 2111368TA-57-3 
PD 117/312/4 PPX 31213 PPR 2111368TA-57-3 
PD 118/312/1 PPX 31214 PPR 2111368TA-57 
PD 118/312/2 PPX 31214 PPR 1911368TA-110 
PD 119/312/1 PPX 31214 PPR 2111368TA-57-3 
PD 119/312/2 PPX 31214 PPR 1911368TA-110-1 
PD 126/312/1 PPX 31208 PPR 2111368TA-57 
PD 126/312/2 PPX 31208 PPR 1911368TA-110 
PD 127/312/1 PPX 31208 PPR 2111368TA-57-3 
PD 127/312/2 PPX 31208 PPR 1911368TA-110-2 
Airspeed limits Maximum structural cruising 184 mph (160 knots) I.A.S. 
Never exceed 237 mph (206 knots) I.A.S. 
Flaps extended (See NOTE 3 125 mph (109 knots) I.A.S. 
for 20° setting) 
Landing gear extended 125 mph (109 knots) I.A.S. 
C.G. range Landplane (-5.1) to (+7.2) (Landing gear extended) 
(-4.6) to (+7.6) (Landing gear retracted) 
Maximum weight Landplane 8500 lbs. 
No. of Seats Series 1A: 
LOCATION 
-56.4 -18.0 +14.4 +48.0 +80.4 +114.0 +144.0 
Number 10 2 2 2 2 2 - -
of 11 2 2 2 2 2 1 -
Seats 13 2 2 2 2 2 1 2 
Series 2A: 
-56.4 -18.0 +15.6 +63.6 +114.0 
Number 7 2 1 2 2 -
of 8 2 2 2 2 -
Seats 9 2 2 2 2 1* 
*Seat at Station +114 may be installed by modification No. 1302 provided that Modification No. 642 
(metal floor) is also incorporated. 
Maximum baggage See manufacturer's weight and balance report issued with each individual aircraft. 
(Simplified loading instructions for Series 1A aircraft are given in the approved de 
Havilland D.H. 104 Dove Pilots Flight Manual). 
Fuel capacity 130 Imp. gal. (in wings): 
Two tanks 26 Imp. gal. each (-0.60), 
Two tanks 39 Imp. gal. each (+26.4), 
and optional installation of one additional tank, 52 Imp. gal., in fuselage (+148.8) 
(See NOTE 7) 
Alternative fuel tankage 168 Imp. gal. (in wings): 
Two tanks 31 Imp. gal. each (-0.60) 
Two tanks 53 Imp. gal. each (+28.8), 
and optional installation of one additional tank, 52 Imp. gal. in fuselage (+148.8) 
(See NOTE 7). 
Oil capacity 16 Imp. gal. in Engine nacelles: 
Two tanks 8.0 Imp. gal. each (-10.8) 
(Imperial gallon equals 1.201 U.S. gal.)

-------------------------------------------------
3 A-807 
Serial Nos. eligible Series 1A and 2A aircraft only. 
The United Kingdom Certificate of Airworthiness endorsed as noted below under 
"Import requirements" must be submitted for each individual aircraft for which 
application for certification is made. 
Required equipment 1. de Havilland D.H. 104 Dove Maintenance and Repair Manual. 
2. de Havilland Aero Engine Gipsy Queen 70-4 Operation, Maintenance 
and Overhaul Manual. 
3. de Havilland Hydromatic three bladed feathering and braking propellers, 
Operation, Maintenance and Overhaul Manual. 
4. de Havilland D.H. 104 Dove Pilots Flight Manual (Series 1A and 2A). 
II - Model D.H. 104 Dove Series 5A and 6A (Normal Category) (See NOTE 8 for series 5BA and 6BA) 
Engines 2 de Havilland Gipsy Queen 70 Mark 2 
Fuel Minimum grade 100/130 
Maximum lead content 5.5 mls. TEL/Imperial gallon 
Engine limits Maximum continuous, 
(Sea Level) 42.0 in. Hg., 2700 rpm (342 bhp) 
(Constant manifold pressure to full throttle height of 4,250 ft) 
42.0 in. Hg., 2700 rpm (355 bhp) 
Maximum weak mixture, 
(Sea level) 34.0 in. Hg., 2400 rpm (245 bhp) 
(Constant manifold pressure to full throttle height of 8,000 ft.) 
34.0 in. Hg., 2400 rpm (265 bhp) 
Maximum takeoff (5 min.), 45.0 in. Hg., 3000 rpm (380 bhp) 
Maximum overspeed (20 sec.), 45.0 in. Hg., 3150 rpm 
Propellers Types: 
Pitch: 
Diameter: 
3-bladed (metal) 
Variable 
7' 6" 
(These details are applicable 
(to all the approved propellers 
(listed below.) 
Design No. 
PD 143/312/1 
Hub Assembly 
PPX 31212 
Blade Assembly 
PPR 2111368TA-57 or 
PPR 2111368TA-57-1 or 
PPR 2111368TA-57-3 
PD 143/312/2 PPX 31213 PPR 2111368TA-57 or 
PPR 2111368TA-57-1 or 
PPR 2111368TA-57-3 
PD 143/312/3 PPX 31212 PPR 1911368TA-110 or 
PPR 1911368TA-110-1 or 
PPR 1911368TA-110-2 
PD 143/312/4 PPX 31213 PPR 1911368TA-110 or 
PPR 1911368TA-110-1 or 
PD 143/312/5 PPX 31214 
or 
PPR 1911368TA-110-2 
PPR 2111368TA-57 or 
PPR 2111368TA-57-1 or 
PPX 31215 PPR 2111368TA-57-3 
PD 143/312/6 PPX 31214 PPR 1911368TA-110 or 
PPR 1911368TA-110-1 or 
PPR 1911368TA-110-2 
PD 143/312/7 PPX 31215 PPR 1911368TA-110 or 
PPR 1911368TA-110-1 or 
PPR 1911368TA-110-2 
PD 147/312/1 PPX 31208 PPR 2111368TA-57 or 
PPR 2111368TA-57-1 or 
PD 147/312/2 PPX 31208 
PPR 2111368TA-57-3 
PPR 2111368TA-57 or

1 I I I I I I I I 
-
1 I I I I I I 
A-807 4 
Propellers (cont’d) 
PPR 2111368TA-57-1 or 
PPR 2111368TA-57-3 
Airspeed limits Maximum structural cruising 184 mph (160 knots) I.A.S. 
Never exceed 237 mph (206 knots) I.A.S. 
Flaps extended (See NOTE 3 125 mph (109 knots) I.A.S. 
for 20° setting) 
Landing gear extended 125 mph  (109 knots) I.A.S. 
C.G. range Landplane (-3.7) to (+7.2) (Landing gear extended) (Models 5A and 6A 
only) 
(-3.3) to (+7.6) (Landing gear retracted) (Models 5A and 6A 
only) 
Maximum weights Takeoff 8800 lbs. (Landplane) 
Landing 8500 lbs. (Landplane) 
Landing 8625 lbs. (Landplane when Modifications 512 or 767 Part B, 
1214 and 1612 are incorporated) 
No. of Seats Series 5A: 
LOCATION 
-56.4 -18.0 +14.4 +48.0 +80.4 +114.0 +144.0 
Number 10 2 2 2 2 2 - -
of 11 2 2 2 2 2 1 -
Seats 13 2 2 2 2 2 1 2 
Series 6A: 
-56.4 -18.0 +15.6 +63.6 +114.0 
Number 7 2 1 2 2 -
of 8 2 2 2 2 -
Seats 9 2 2 2 2 1* 
*Seat at Station +114 may be installed by modification No. 1302 provided that Modification No. 642 
(metal floor) is also incorporated. 
Maximum baggage See manufacturer's weight and balance report issued with each individual aircraft. 
(Simplified loading instructions for Series 5A and 6A aircraft are given in the approved 
de Havilland D.H. 104 Dove Crews' Notes). 
Fuel capacity 130 Imp. gal. (in wings): 
Two tanks 26 Imp. gal. each (-0.60), 
Two tanks 39 Imp. gal. each (+26.4), 
and optional installation of one additional tank, 52 Imp. gal., in fuselage (+148.8) 
(See NOTE 7) 
Alternative fuel tankage 168 Imp. gal. (in wings): 
Two tanks 31 Imp. gal. each (-0.60) 
Two tanks 53 Imp. gal. each (+28.8), 
and optional installation of one additional tank, 52 Imp. gal. in fuselage (+148.8) 
(See NOTE 7). 
Oil capacity 16 Imp. gal. in Engine nacelles: 
Two tanks 8.0 Imp. gal. each (-10.8) 
(Imperial gallon equals 1.202 U.S. gal.) 
Serial Nos. eligible Series 5A and 6A aircraft only. (See NOTE 8 for conversion from Series 1A & 2A 
aircraft.) 
The United Kingdom Certificate of Airworthiness endorsed as noted below under 
"Import requirements" must be submitted for each individual aircraft for which 
application for certification is made, except for Serial Nos. 04275, 04282 which have 
been accepted upon satisfactory verification by the Air Registration Board.

1 I I I I I I I 
5 A-807 
Required equipment 1. de Havilland D.H. 104 Dove Maintenance and Repair Manual. 
2. de Havilland Aero Engine Gipsy Queen 70 Mark 2 Operation, Maintenance and 
Overhaul Manual. 
3. de Havilland Hydromatic three-bladed feathering and braking propellers, 
Operation, Maintenance and Overhaul Manual. 
4. de Havilland D.H. 104 Dove Crews' Notes (Series 5A and 6A). 
III - Model D.H. 104 Dove Series 7A and 8A (Normal Category), approved November 3, 1960 
(See NOTE 10 for series 7AXC and 8AXC) 
Engines 2 de Havilland Gipsy Queen 70 Mark 3 
Fuel Minimum grade 100/130 
Maximum lead content 5.5 mls. TEL/Imperial gallon 
Engine limits Maximum continuous, 
(Sea Level) 42.0 in. Hg., 2800 rpm (346 bhp) 
(Constant manifold pressure to full throttle height of 5250 ft) 
42.0 in. Hg., 2800 rpm (361 bhp) 
Maximum weak mixture, 
(Sea level) 34.0 in. Hg., 2400 rpm (245 bhp) 
(Constant manifold pressure to full throttle height of 8,000 ft.) 
34.0 in. Hg., 2400 rpm (265 bhp) 
Maximum takeoff (5 min.), 47.0 in. Hg., 3000 rpm (400 bhp) 
Maximum overspeed (20 sec.), 47.0 in. Hg., 3150 rpm 
Propellers Type: 3-bladed (metal) (These details are applicable 
Pitch: Variable (to all the approved propellers 
Diameter: 7' 6" (listed below.) 
Design No. Hub Assembly Blade Assembly 
PD.143/312/1 PPX.31212 PPR.2111368TA -57 or 
PPR.2111368TA-57-3 
Airspeed limits Maximum structural cruising 190 mph (165 knots) I.A.S. 
Never exceed 237 mph (206 knots) I.A.S. 
Flaps extended (See NOTE 3 125 mph (109 knots) I.A.S. 
for 20° setting) 
Landing gear extended 125 mph  (109 knots) I.A.S. 
C.G. range Landplane (-3.7) to (+7.2) (Landing gear extended) 
(-3.3) to (+7.6) (Landing gear retracted) 
Maximum weights Takeoff 8950 lbs. (Landplane) 
Landing 8500 lbs. (Landplane) 
Landing 8625 lbs. (Landplane when Modifications 512 or 767 Part B, 
1214 and 1612 are incorporated) 
No. of Seats Series 7A: 
LOCATION 
-56.4 -18.0 +14.4 +48.0 +80.4 +114.0 +144.0 
Number 10 2 2 2 2 2 - -
of 11 2 2 2 2 2 1 -
Seats 13 2 2 2 2 2 1 2

1 I I I I I I 
A-807 6 
No. of Seats (cont’d) 
Series 8A 
-56.4 -18.0 +15.6 +63.6 +114.0 
Number 7 2 1 2 2 -
of 8 2 2 2 2 -
Seats 9 2 2 2 2 1* 
*Seat at Station +114 may be installed by modification No. 1302 provided that Modification No. 642 
(metal floor) is also incorporated. 
**Seats at -18 are relocated at -26.4 if Modification No. 1322 is incorporated. 
Maximum baggage See manufacturer's weight and balance report issued with each individual aircraft. 
(Simplified loading instructions for Series 7A and 8A aircraft are given in the approved 
de Havilland D.H. Dove 7 and 8 Series Crews' Notes) 
Fuel capacity 168 Imp. gal. (in wings): 
Two tanks 31 Imp. gal. each (-0.60), 
Two tanks 53 Imp. gal. each (+28.8), and optional installation of one additional 
tank, 52 Imp. gal., in fuselage (+148.8) (See NOTE 7) 
Oil capacity 16 Imp. gal. in Engine nacelles: 
Two tanks 8.0 Imp. gal. each (-10.8) 
(Imperial gallon equals 1.201 U.S. gal.) 
Serial Nos. eligible Series 7A and 8A aircraft only. The United Kingdom Certificate of Airworthiness endorsed 
as noted below under"Import requirements" must be submitted for each individual aircraft 
for which application for certification is made. 
Required equipment 1. de Havilland D.H. 104 Dove Maintenance and Repair Manual. 
2. de Havilland Aero Engine Gipsy Queen 70 Mark 3 Operation, Maintenance and 
Overhaul Manual. 
3. de Havilland Hydromatic three-bladed feathering and braking propellers, 
Operation, Maintenance and Overhaul Manual. 
4. de Havilland D.H. 104 Dove 7 and 8 Series Crews' Notes. 
SPECIFICATIONS PERTINENT TO ALL MODELS 
Datum 31.2 inches aft of the front leveling peg on the port side of the fuselage. Horizontal 
arms to the C.G. of the items shown on this specification are plus (+) behind and 
minus (-) ahead of the datum. 
Leveling means Datum pegs on port side of fuselage and datum pads on main spar in cabin. 
Control surface movements Elevator Up 27° + 1° Down 14° + 1° 
Elevator trim tab Up 13° + 0°30' Down 20° + 0°30' 
Rudder Right 25° + 1° Left 25° + 1° 
Rudder trim tab Right 18° + 0°45' Left 18° + 0°45' 
Aileron Up 21°13' + 1° Down 18°47' + 1° 
Flaps Down 60° + 1° 
Stabilizer Fixed 
Certification basis Type Certificate No. A-807 issued under CAR 10. 
Import requirements A U. S. Airworthiness Certificate may be issued on basis of a United Kingdom 
Certificate of Airworthiness for Export signed by a representative of the Ministry of 
Transport and Civil Aviation containing the following notation: "The airplane covered 
by this certificate has been examined and found to comply with British Civil 
Airworthiness Requirements published Jan. 1947 and with the special requirements 
notified by the U.S. Government to the Government of the United Kingdom." 
Refer to the applicable bilateral agreement to verify eligibility for import into the United 
States of both new and used aircraft based on the scope of the agreement, to identify any 
required statements by the exporting authority on the export certificate of airworthiness 
(or equivalent document), and for procedures for coordinating exceptions to conformity 
statements on these documents. Refer to FAA Order 8130.2, Airworthiness Certification 
of Aircraft, for requirements for issuance of an airworthiness certificate for imported 
aircraft.

7 A-807 
Service Information Each of the documents listed below may state that it is approved by the United Kingdom 
Civil Aviation Authority (UK CAA). 
• Service bulletins 
• Structural repair manuals 
• Vendor manuals 
• Aircraft flight manuals 
• Overhaul and maintenance manuals 
The FAA accepts such documents and considers them FAA-approved for type design 
data unless one of the following conditions exist: 
• The documents change the limitations, performance, or procedures of the FAA 
approved manuals. 
The FAA uses post type validation procedures to approve these documents. The FAA 
may delegate case-by -case approval to the UK CAA on behalf of the FAA for the U.S. 
type certificate. If this is the case it will be noted on the document. 
NOTES 
NOTE 1. Current weight and balance report including list of equipment included in certificated weight empty, and loading 
instructions when necessary, must be provided for each aircraft at the time of original certification. 
NOTE 2. The following placards must be displayed in front of and in clear view of pilot: 
(a) Series 1A, 2A. 
(1) "This airplane must be operated as a normal category airplane in compliance with the operating limitations 
specified in the approved de Havilland D.H. 104 Dove Pilots Flight Manual." 
(2) "Normal Category (G.W. 8500 lbs. as landplanes) Acrobatic manoeuvres including spins not approved." 
(3) Lavatory "This room must not be occupied during take-off and landing." 
(b) Series 5A, 6A. 
(1) "This airplane must be operated as a normal category airplane in compliance with the operating limitations 
specified in the approved de Havilland D.H. 104 Dove Crews' Notes." 
(2) "Normal Category (G.W. 8800 lbs. as landplanes) Acrobatic manoeuvres including spins not approved." 
(3) Lavatory "This room must not be occupied during take-off and landing." 
(c) Series 5BA, 6BA. 
(1) "This airplane must be operated as a normal category airplane in compliance with the operating limitations 
specified in the approved de Havilland D.H. 104 Dove Crews' Notes (Series 5BA and 6BA)." 
(2) "Normal Category (G.W. 8,500 lbs. as landplane) Acrobatic manoeuvres including spins not approved." 
(3) Lavatory "This room must not be occupied during take-off and landing." 
(d) Series 7A, 8A, 7AXC, 8AXC. 
(1) "This airplane must be operated as a normal category airplane in compliance with the operating limitations 
specified in the approved de Havilland D.H. 104 Dove 7 and 8 Series Crews' Notes." 
(2) "Normal Category (G.W. 8950 lbs. as landplanes) Acrobatic manoeuvres including spins not approved." 
(3) Lavatory "This room must not be occupied during take-off and landing." 
NOTE 3. The following partial flap setting and corresponding limiting airspeed may be used: 
20° 150 mph (130 knots) I.A.S. 
NOTE 4. Smoking may be permitted in passenger compartment only except that when de Havilland Dove Modifications PP 
206, 1299 and 1366 are all installed, smoking may be permitted in pilots' cockpit and passenger compartment 
only. (Relevant modifications are standard fitment in Dove 7A and 8A). 
NOTE 5. Eligible with Lear Model L-2C automatic pilot and Model 1404B or Model 2203D altitude controller (optional 
equipment) installed in accordance with Lear installation Dwg. 91450 or 95700. Pilot's Flight Manual Supplement 
dated October 19, 1951, revised July 3, 1952, is required. The following placards should be installed: 
"DO NOT USE AUTOPILOT BELOW 525 FEET ABOVE TERRAIN IN CRUISE CONFIGURATION" 
"DO NOT USE AUTOPILOT BELOW 150 FEET ABOVE TERRAIN IN APPROACH CONFIGURATION"

A-807 8 
NOTE 5 (cont’d). 
Model L-2C autopilot installed in accordance with Dwg. 91450: 51 lbs. (+11) 
Servo stall forces measured at the servo on the ground: 
Aileron 75 + 5 in. lbs., elevator 25 + 5 in.lbs., rudder 50 + 5 in.lbs. 
Servo drum pitch diameters for all three axes are 1.375 in. 
Model L-2C autopilot installed in accordance with Dwg. 95700: 57 lbs. (+20) 
Servo stall forces measured at the servo on the ground: 
Aileron 150 + 5 in. lbs., elevator 50 + 5 in.lbs., rudder 100 + 5 in.lbs. 
Servo drum pitch diameters for all three axes are 2.67 in. 
Model 1404B altitude controller (optional equipment) 1.5 lbs. (+178) 
Model 2203D altitude controller according to Lear Dwg. 95700E 2.5 lbs. (+179) 
Model 937B controller according to Lear Dwg. 95700E 2.3 lbs. (-75) 
(replaces 1409A controller per .8 lbs.) 
Model 1350B approach coupler according to Lear Dwg. 95700E 7.5 lbs. (-115) 
NOTE 6. Eligible with Lear L-5 autopilot (1402C approach coupler and 2203 altitude control included) 
installed in accordance with Lear Dwg. 700015.  Airplane Flight Manual Supplement 
dated June 26, 1953, is required. The following placard or equivalent should be installed 
in a conspicuous place near the autopilot controller in full view of the pilot: 
"DO NOT USE AUTOPILOT BELOW 525 FEET ABOVE TERRAIN EXCEPT DURING 
APPROACH WHEN AUTOPILOT NOT TO BE USED BELOW A50 FEET ABOVE TERRAIN. 
MINIMUM ALTITUDES DO NOT OVERRIDE ANY HIGHER MINIMUM OPERATIONAL ALTITUDES." 
Servo slip clutch torque + 5 in.Lbs. elevator 50; rudder 100; aileron 150; 
Servo drum pitch diameters for all three axes are 2.67 in. 
NOTE 7. When the 52 Imperial gallon tank is installed in the rear freight compartment and is not isolated from that 
compartment by a fuel and vapour-tight shield, baggage shall not be carried in the compartment. 
NOTE 8. Series 1A or series 2A aircraft may be converted to Series 5A or 6A aircraft in accordance with Mod 696 or 697, 
respectively, described in de Havilland Technical News Sheet Series CT(104) No. 94 Issue 2. 
Series 1A or Series 2A aircraft may be converted to Series 5BA or 6BA aircraft in accordance with Mod. 683 or 
684, respectively, described in de Havilland Technical News Sheet Series CT(104) No. 94 Issue 2. 
Such conversions are provided for operators who install Gipsy Queen 70 Mk. 2 engines in Series 1A or 2A aircraft 
but do not wish to take advantage of the increase in maximum takeoff weight to 8800 lbs. allowed for Series 5A or 
6A. The limitations for Series 5BA and 6BA aircraft will be the same as for Series 5A and 6A under Section II of 
this specification with the following exceptions: 
C.G. range Landplane (-5.1) to (+5.8) (Landing gear extended) 
(-4.6) to (+6.2) (Landing gear retracted) 
Maximum weight Landplane 8500 lbs. 
Required equipment 1. de Havilland D.H. 104 Dove Maintenance and Repair Manual. 
2. de Havilland Aero Engine Gipsy Queen 70 Mark 2 Operation, Maintenance and 
Overhaul Manual. 
3. de Havilland Hydromatic three-bladed feathering and braking propellers, 
Operation, Maintenance and Overhaul Manual. 
4. de Havilland D.H. 104 Dove Crews' Notes (Series 5BA and 6BA)

9 A-807 
NOTE 9. The following is a list of aircraft parts which are critical from the fatigue standpoint and must be replaced at the 
time specified in the appropriate de Havilland Dove Technical News Sheet. 
(1) Wing center section lower spar boom (See de Havilland Dove Technical News Sheet Series CT(104) 
No. 119). 
(2) Wing lower front spar boom (See de Havilland Dove Technical News Sheet Series CT (104) No. 119). 
(3) Pistons of Dunlop Pneumatic Jacks (P/N, AH.8463 and AC.11130) fitted to main and nose under carriage 
assemblies (See de Havilland Dove Technical News Sheet Series CT (104) No. 141). 
NOTE 10. Series 1A, 2A, 5A and 6A aircraft may be converted to Series 7AXC or 8AXC aircraft in accordance with detailed 
instructions regarding necessary modifications contained in de Havilland Technical News Sheet series CT(104) 
No. 181. 
This same document shows how the safe life of the wing may be calculated after conversion to Series 7AXC or 
8AXC aircraft. 
The limitations for Series 7AXC and 8AXC aircraft will be the same as for Series 7A and 8A under Section III of 
this specification. 
.....END.....
```

## ADs (39, in force first)

- [AD 79-02-07](https://openairdocs.org/ad/79-02-07): Wing to Fuselage Attachment · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more. Effective Feb 19, 1979
- [AD 78-09-04](https://openairdocs.org/ad/78-09-04): Main Spar Bottom Boom Lugs · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more. Effective May 24, 1978
- [AD 77-16-04](https://openairdocs.org/ad/77-16-04): Wing Structure · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more. Effective Aug 31, 1977
- [AD 77-14-15](https://openairdocs.org/ad/77-14-15): Corrosion of Engine Mount Stay Strut · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more. Effective Aug 8, 1977
- [AD 77-14-04](https://openairdocs.org/ad/77-14-04): Electrical Power · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 10 more. Effective Aug 5, 1977
- [AD 76-10-03](https://openairdocs.org/ad/76-10-03): Drag Brace Fittings · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more. Effective Jun 1, 1976
- [AD 76-06-10](https://openairdocs.org/ad/76-06-10): Nose Landing Gear Casing · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more. Effective Apr 8, 1976
- [AD 76-06-04](https://openairdocs.org/ad/76-06-04): Engine Mounting Brackets · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more. Effective Mar 29, 1976
- [AD 76-02-05](https://openairdocs.org/ad/76-02-05): Engine Mounting Frame · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more. Effective Jan 30, 1976
- [AD 75-27-01](https://openairdocs.org/ad/75-27-01): Nose and Main Gear Screws · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more. Effective Jan 19, 1976
- [AD 75-24-06](https://openairdocs.org/ad/75-24-06): Main Spar Joint · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more. Effective Nov 28, 1975
- [AD 70-23-02](https://openairdocs.org/ad/70-23-02): Wing Lower Main Spar Cap · Two AiResearch TPE331 series engines and increase in fuselage… (Cal Aero Industries STC SA1554WE or SA1747WE). Effective Jul 3, 1973
- [AD 72-12-03](https://openairdocs.org/ad/72-12-03): Failure of Air Bottles · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more. Effective Nov 13, 1972
- [AD 72-16-07](https://openairdocs.org/ad/72-16-07): Wing Main Spar Pick Up Fittings · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more. Effective Jul 31, 1972
- [AD 72-10-03](https://openairdocs.org/ad/72-10-03): Fatigue Failure Wing Spar Fitting · AiResearch TPE 331 engines, increase in fuselage length (Texas Airplane Mfg STC SA1747WE). Effective Jun 7, 1972
- [AD 72-10-01](https://openairdocs.org/ad/72-10-01): Cracks in Control Pedal Reversal Lever · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more. Effective May 31, 1972
- [AD 70-07-01](https://openairdocs.org/ad/70-07-01): Engine Mount Structure · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more. Effective Apr 24, 1972
- [AD 71-19-06](https://openairdocs.org/ad/71-19-06): Escape Hatch Lock Check · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more. Effective Sep 21, 1971
- [AD 71-13-02](https://openairdocs.org/ad/71-13-02): Dunlop Air Bottle · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more. Effective Jul 31, 1971
- [AD 70-21-02](https://openairdocs.org/ad/70-21-02): Wing Flap Datum Hinge Assemblies · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more. Effective Nov 5, 1970
- [AD 70-03-01](https://openairdocs.org/ad/70-03-01): Nose Landing Gear Locking Lever · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more. Effective Feb 22, 1970
- [AD 69-25-06](https://openairdocs.org/ad/69-25-06): Aileron Lever · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more. Effective Jan 3, 1970
- [AD 66-20-02](https://openairdocs.org/ad/66-20-02): Engine Fire Extinguishing System · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more. Effective Aug 13, 1966
- [AD 66-05-02](https://openairdocs.org/ad/66-05-02): Rudder and Elevator Trim Tab Rod End Assemblies · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more. Effective Feb 27, 1966
- [AD 66-02-03](https://openairdocs.org/ad/66-02-03): Main and Nose Landing Gear Assemblies · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more. Effective Feb 5, 1966
- [AD 64-13-01](https://openairdocs.org/ad/64-13-01): Main Ground Assembly · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more. Effective Jun 26, 1964
- [AD 63-19-01](https://openairdocs.org/ad/63-19-01): Control Brackets · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more. Effective Sep 7, 1963
- [AD 61-11-04](https://openairdocs.org/ad/61-11-04): Wing Spar Boom Corrosion · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more
- [AD 55-25-02](https://openairdocs.org/ad/55-25-02): Front Fin Attachment Brackets · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more
- [AD 55-25-03](https://openairdocs.org/ad/55-25-03): Earth Post Corrosion · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more
- [AD 56-11-01](https://openairdocs.org/ad/56-11-01): Oil Pressure and Temperature Gage · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more
- [AD 56-15-04](https://openairdocs.org/ad/56-15-04): Nose Gear Brackets · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more
- [AD 56-19-01](https://openairdocs.org/ad/56-19-01): Aileron Pulley Locking Pin · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more
- [AD 58-20-02](https://openairdocs.org/ad/58-20-02): Fire Extinguisher Electrical Circuit · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more
- [AD 59-01-02](https://openairdocs.org/ad/59-01-02): Landing Gear Locking Lever · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more
- [AD 59-05-02](https://openairdocs.org/ad/59-05-02): Oil Dipstick Modification · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more
- [AD 59-12-08](https://openairdocs.org/ad/59-12-08): Fire Extinguisher Spray Pipe · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more
- [AD 70-07-06](https://openairdocs.org/ad/70-07-06): Tailplane Rear Spar · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 10 more
- [AD 70-15-07](https://openairdocs.org/ad/70-15-07): Wing Flap Datum Hinge Links · de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A and 7 more

## Registered aircraft by registry model (OpenAirDocs)

- [Dehavilland DH104 DOVE 6A](https://openairdocs.org/model/dehavilland-dh104-dove-6a): 3 aircraft (registry code 2800410)
- [Dehavilland DH104 DOVE 1A](https://openairdocs.org/model/dehavilland-dh104-dove-1a): 0 aircraft (registry code 2800402)
- [Dehavilland DH104 DOVE 2A](https://openairdocs.org/model/dehavilland-dh104-dove-2a): 0 aircraft (registry code 2800404)
- [Dehavilland DH104 DOVE 5A](https://openairdocs.org/model/dehavilland-dh104-dove-5a): 0 aircraft (registry code 2800406)
- [Dehavilland DH104 DOVE 5BA](https://openairdocs.org/model/dehavilland-dh104-dove-5ba): 0 aircraft (registry code 2800408)
- [Dehavilland DH104 DOVE 6BA](https://openairdocs.org/model/dehavilland-dh104-dove-6ba): 0 aircraft (registry code 2800412)
- [Dehavilland DH104 DOVE 7A](https://openairdocs.org/model/dehavilland-dh104-dove-7a): 0 aircraft (registry code 2800414)
- [Dehavilland DH104 DOVE 7AXC](https://openairdocs.org/model/dehavilland-dh104-dove-7axc): 0 aircraft (registry code 2800417)
- [Dehavilland DH104 DOVE 8A](https://openairdocs.org/model/dehavilland-dh104-dove-8a): 0 aircraft (registry code 2800418)
- [Dehavilland DH104 DOVE 8AXC](https://openairdocs.org/model/dehavilland-dh104-dove-8axc): 0 aircraft (registry code 2800420)

## STCs approved under this data sheet (56, first 50)

- [STC SA4503NM](https://openairdocs.org/stc/SA4503NM): Remove original cloth covering and install Ceconite covering. Ceconite Division of Poly-Fiber Inc.
- [STC SA04776NY](https://openairdocs.org/stc/SA04776NY): The HIPEC Covering and Finishing System must be performed and maintained. HIPEC Aircraft Coatings Inc.
- [STC SA02283SE PAGE 2](https://openairdocs.org/stc/SA02283SE%20PAGE%202): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In Flight Data) CGR-30P. Electronics International Inc.
- [STC SA02402SE PAGE 1](https://openairdocs.org/stc/SA02402SE%20PAGE%201): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) CGR-30C. Electronics International Inc.
- [STC SA399CE](https://openairdocs.org/stc/SA399CE): Installation of Hoskins Supplemental Position Light  System which includes Model B (Dual) Wing Tip Light, Model C, D, or K Tail Light with or without Model 2 Fuselage Lights.. BF Goodrich Aerospace
- [STC SA1315WE](https://openairdocs.org/stc/SA1315WE): Installation of Mixture Monitor (exhaust gas temperature probe, gage and selector) in accordance with Delta Products Part Lists A-192 and A-193,  or in accordance with Tri-Star Corporation Mixture Monitor Installation Instructions dated December 9, 1981,  or later FAA approved revision and/or Drawing List MM-127 dated November 15, 1981,  or later FAA approved revision in aircraft models listed in Master Eligibility List P-80-A-6 revised March 29, 1968,  copy attached,  or later FAA approved revision.. Universal Corporation
- [STC SA01988SE](https://openairdocs.org/stc/SA01988SE): Installation of Electronics International Inc. Glass Panel Engine Monitor (with In-Flight Data) MVP-50P.. Electronics International Inc.
- [STC SA00680SE](https://openairdocs.org/stc/SA00680SE): Installation of Electronics International model UBG-16 or UBG-16T bar graph engine analyzer.. Electronics International
- [STC SA1008WE](https://openairdocs.org/stc/SA1008WE): Installation of Poly-Fiber covering material.. Poly-Fiber Inc.
- [STC SA130SW](https://openairdocs.org/stc/SA130SW): Installation of 35,000 B.T.U. combustion heater.. Signature Flight Support Corporation
- [STC SA2-145](https://openairdocs.org/stc/SA2-145): Installation of commode-hassock.. Signature Flight Support Corporation
- [STC SA2-222](https://openairdocs.org/stc/SA2-222): Installation of aircraft type door.. Signature Flight Support Corporation
- [STC SA2-52](https://openairdocs.org/stc/SA2-52): Installation of surface combustion type S-100 heater.. Signature Flight Support Corporation
- [STC SA2-53](https://openairdocs.org/stc/SA2-53): Installation of American Generator control system.. Signature Flight Support Corporation
- [STC SA2-54](https://openairdocs.org/stc/SA2-54): Installation of one piece instrument panel and dual vacuum instruments.. Signature Flight Support Corporation
- [STC SA2-55](https://openairdocs.org/stc/SA2-55): Installation of enlarged nose alcohol de-icing tank (6 gal. capacity).. Signature Flight Support Corporation
- [STC SA2-652](https://openairdocs.org/stc/SA2-652): Installation of two 15 NS-250 Junior Jato standby rocket engines.. Signature Flight Support Corporation
- [STC SA2-809](https://openairdocs.org/stc/SA2-809): Installation of lavatory window L.H. side of aircraft between Stations 149 and 164 (inches aft of datum).. Signature Flight Support Corporation
- [STC SA2-877](https://openairdocs.org/stc/SA2-877): Rework standard chairs P/N 4FF163A/1 LH and P/N 4FF164A/1 RH to spar chair P/N 4FF165A/1 LH and P/N 4FF166A/1 RH.. Signature Flight Support Corporation
- [STC SA249SW](https://openairdocs.org/stc/SA249SW): Installation of airstair door.. Signature Flight Support Corporation
- [STC SA541SW](https://openairdocs.org/stc/SA541SW): Installation of 35,000 BTU Southwind heater model 8240A. Signature Flight Support Corporation
- [STC SA1-72](https://openairdocs.org/stc/SA1-72): Three-place seat.. Ohio Aviation Co
- [STC SA1626NM PAGE 1](https://openairdocs.org/stc/SA1626NM%20PAGE%201): Installation of Electronics Int'l Digital EGT/CHT Instruments and accessories. (201 Series). Electronics International
- [STC SA4302NM](https://openairdocs.org/stc/SA4302NM): Installation of Electronics Int'l digital automatic engine analyzer.. Electronics International
- [STC SA838SW](https://openairdocs.org/stc/SA838SW): Installation of Mitchell glide slope coupler Model 1C493.. Century Flight Systems Inc
- [STC SA676SW](https://openairdocs.org/stc/SA676SW): Mitchell AK219 automatic flight system consisting of Century III autopilot with optional automatic pitch trim and radio coupler.. Century Flight Systems Inc
- [STC SA1351WE](https://openairdocs.org/stc/SA1351WE): Replace existing fabric on wings, fuselage, empennage, and/or control surfaces, with Ceconite101 material. (262A Series -12). Ceconite Inc
- [STC SA4-1210](https://openairdocs.org/stc/SA4-1210): Installation of Eonnex cover on aircraft surfaces.. Ceconite, Inc
- [STC SA1924SW](https://openairdocs.org/stc/SA1924SW): Structural modification of horizontal tail.. Texas Airplane Mfg Co, Inc
- [STC SA1747WE](https://openairdocs.org/stc/SA1747WE): Installation of AiResearch TPE 331 engines, increase in fuselage length and related changes.. Texas Airplane Mfg Co, Inc
- [STC SA1815WE](https://openairdocs.org/stc/SA1815WE): Installation of cabin interior.. Texas Airplane Mfg Co, Inc
- [STC SA2005WE](https://openairdocs.org/stc/SA2005WE): Installation of cabin air conditioning system. Texas Airplane Mfg Co, Inc
- [STC SA2019WE](https://openairdocs.org/stc/SA2019WE): Installation of cabin heating system. Texas Airplane Mfg Co, Inc
- [STC SA120SO](https://openairdocs.org/stc/SA120SO): Instrument panel.. Riley Turbostream Corp
- [STC SA121SO](https://openairdocs.org/stc/SA121SO): Electrical circuit breaker panel and related electrical bus bars.. Riley Turbostream Corp
- [STC SA122SO](https://openairdocs.org/stc/SA122SO): Seats to accommodate 11 passengers.. Riley Turbostream Corp
- [STC SA164SO](https://openairdocs.org/stc/SA164SO): Installation of sNM-Lpt vertical tail, wing tips and elevator (STC SA303CE-A is prerequisite to this STC); in- stallation of Lycoming IO-720-A1A engines (STC SE163CE-A) and Hartzell HC-A3VK-2/V8433-4R propellers.. Riley Turbostream Corp
- [STC SA165SO](https://openairdocs.org/stc/SA165SO): Six single-place seats and one two-place couch.. Riley Turbostream Corp
- [STC SA167SO](https://openairdocs.org/stc/SA167SO): Electrically heated windshield left-hand side.. Riley Turbostream Corp
- [STC SA168SO](https://openairdocs.org/stc/SA168SO): Hartzell HC-A3VK-2/V8433-4R propellers.. Riley Turbostream Corp
- [STC SA170SO](https://openairdocs.org/stc/SA170SO): Auxiliary fuel system and bladder type tanks in leading edges of the wings.. Riley Turbostream Corp
- [STC SA171SO](https://openairdocs.org/stc/SA171SO): B.F. Goodrich deicers.. Riley Turbostream Corp
- [STC SA2438WE](https://openairdocs.org/stc/SA2438WE): Installation of spar reinforcing steel straps, on aircraft previously modified per STC SA1747WE.. Consulting Aerospace Engineers Inc
- [STC SA135SW](https://openairdocs.org/stc/SA135SW): Installation of fuselage nose-mounted radome and structure.. Ursell C R
- [STC SA3-321](https://openairdocs.org/stc/SA3-321): L-5B autopilot and integrated flight equipment CIS-100.. LSI Service Corp
- [STC SA1-73](https://openairdocs.org/stc/SA1-73): 39-gallon auxiliary fuel tank in cabin with 3-place seat per STC SA1-72.. Ohio Aviation Co
- [STC SA1554WE](https://openairdocs.org/stc/SA1554WE): Installation of two AiResearch TPE331 series engines and increase in fuselage length.. Cal Aero Industries Inc
- [STC SA3-472](https://openairdocs.org/stc/SA3-472): Stewart Warner 940B combustion heater in forward lower baggage compartment.. Tag Airlines
- [STC SA3-61](https://openairdocs.org/stc/SA3-61): Sonotone battery (nickle cadmium) 19-24M320.. Burroughs Corporation
- [STC SA303SO](https://openairdocs.org/stc/SA303SO): Wing leading edge clean-up.. Riley Turbostream Corp

All 56: https://openairdocs.org/tcds/A-807/stcs.md

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.