Pitts Service Bulletins

Bulletin# Subject Model Serial #
37 Secondary Windings on Composite Blades 7690 and 7890 All
36 Rudder Cable Assemblies S-2, S-2E, S-2A All
35 Mounting Kit for Composite Spinner S-2C 6074-6088
34 Fuel Flop Tube Hose Assembly S-1, S-2 All
33 RSA-5 or RSA-10 series Fuel Injector Servos S-1, S-2 All
32 Aileron Cove Fabric Retention Strips S-2C All
31 Propeller Accumulator S-2B, S-2C 6001-6041
30 Changing fuel valves from Imperial 104HD to Apollo 76-101 S-2C All
29 Elevator Forward Control Rod S-2C All
28 LANG D-501A Tailwheel Assembly Usage S-2A, S-2B, S-2C All
27 Upper Wing Fabric, Pitts S-2B only S-2B 5260-5340
26 Throttle and Cowl Flap Control Cables S-2B 5286 and up
25 Rear Lower Fuselage Wing Fittings S-2B All
24 Fuselage Upper Longerons All All
23 Control Stick S-2A All
22 (A) Fuel Flop Tube Hose Assy (B) Fuel Sight Guage Tube All All
21 Manifold Absolute Presssure Line Re-route S-2B
S-2S		 5001-5269
3000-3018
20 Ammeter Function S-2B, S-2S All
19 Oil Breather Line All All
18 Wing Fabric-Cotton Recover to Dacron Rib Stitching All All Prior to 08/1987
17 Christen Stick Grips on Pitts Aircraft All All Prior to 02/1989
16 Oil Cooler Installation S-2B 5001-5079
15 Elevator Control Stick S-2S 1000-1014, 3000-3012
14 Horizontal Stab. Support Tube S-1S 0001-0060
13 Aileron Stop Bolt S-1S 0001-0054
12 Gel/Cell Battery Installation S-1S 0001-0054
11 Fiberglass Battery Box S-1S 0032-0049, 2101-2115
10 Cracks in Streamline Tubing S-1S 0032-0049
9 Rudder Cable Plate S-1S All
8 Upper Wing L.E. Ribs S-1S 0001-0025
7 Adds Strut to Stab. L.E. S-2A 0001-0025
6 Horizontal Stab. Support Tube S-2A 2001-2030
5 Aileron Interconnect Tube S-2A 2001-2025
4 Upper Aileron Hinge Bracket S-2A 2001-2090
3 Concerns propeller blade failure S-2A 2001 and UP
2 Freezing of Engine Breather S-2A 2001-2014
1 Engine Oil Temperatures S-2A 2001-2005

Service Letters

Letter# Subject Model
15 Kit Available for the S-2B & S-2C Smoke System S-2B S/N 5000 and up
S-2C S/N 6000 and up
11 Pitts S-2A & S-2B Shoulder Harness Optional Installation S-2S S/N 1000-1014
S-2A S/N 3000-3023
S-2B w/ shldr hrnss att to seatback
10 Brake Line Inspection All Models & S/N
Improper rigging)
9 Elevator trip tab travel S-2A S/N 2001-2114
8 Elevator horns (cracks) S-2A S/N 2001-2114
7 Vapor lock IO-360-A1A S-2A All
6 Brake Hydraulic Line Clearance S-2A All S-1S All
5 Control Tube Assy (Cracks) S-2A All
4 Upper Aileron to Hinge Bracket S-2A S/N 2001-2090
3 (12-22-73) Upper Wing Spar to Cabane Fitting S-2A S/N 2001-2070 (2-26-74)
2 (12-06-73) Upper wing spar to cabane fitting
(6-26-73) Alternate air heat box flapper door		 S-1 S/N 1-001-1-0017
(2-26-74) S-2A S/N 2001-2059
1 Brake Hydraulic Line Leakage S-2A S/N 2001-2024

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