Service Letters


Click here for Fire Attack System service letters.

SERVICE LETTER #
REGARDING SYSTEM(s) #
BRIEF EXPLANATION/SUMMARY
R44III Spray
R44III Boom Valve Modification
R44III Spray
R44III Spray_Engine Wiring Harness Mod
328
328 Hydraulic back pressure repair
301
Model 301 TFD hover pump bumper replacement
304
304 Tank Vibration Dampening
304
304 Rev A tank attach
316
316 Tank Attach
208, 308
208 308 tank attach
304, 308, 310, 311, 323
Hydraulic Hover Refill Pump
348
348 Hover Refill Pump
328
328 Hover Refill Pump
316
316 Hover Refill Pump
304, 326
304, 326 MTH Hover Refill Pump
301, 304, 308, 310, 311, 323
Rev A 28VDC Hover Refill Pump
304, 308, 310, 311, 316, 323, 327, 328, 348
Rev A FAS Doors
210, 310
210 310 tank attach
301
doors 301
328
328 Wiring Harness Repair
326
326 Overflow Shroud Installation
301
301 Cockpit Display Box Repair
326
326 Relay Cover
301
301 Santoku Shroud Modification
301
301 Tank Inspection Repair Santoku
Mack Javelin
Repair of Mack Javelin Turret Lock Handle
316
Installation of Neble Plug Clearance Cup on 316
301, 304, 308, 310, 311, 314, 316, 323, 326, 327
Periodic Servicing Recommendation for multiple FAS
316
Labeling of FAS Circuit Breakers on Model 316 Installed on EC225LP
301
Model 301 Tank Repair for Actuator Holes
304
Modification of Door Actuator and Shaft Assembly for 304 FAS
208
Modification of Tank Attachment Fittings for 208 Spray System
310
Installation of Modified Tank Top Skin Inserts on Simplex Model 310 Fire Attack Systems
10900-004
Replacement of 10953-002 Threaded rod Assembly & 10954 Threaded End Used on Simplex 10900-050 & 328 Fire Attack Systems Installed on Kamov Ka-32 Rotorcraft
10900-050 & 328
Replacement of 10953-002 Threaded rod Assembly & 10954 Threaded End Used on Simplex 10900-050 & 328 Fire Attack Systems Installed on Kamov Ka-32 Rotorcraft
10900
Replacement of the 10953-001 Threaded Rod Assembly Used on Simplex 10900 Fire Attack Systems Installed on Kamov Ka-32 Rotorcraft
10900-005
Replacement of 10953-009 Threaded Rod Assembly & 10954 Threaded End Used on Simplex 10900-005 Spray Systems Installed on Kamov Ka-32 Rotorcraft
P333
Installation of Vacuum Breaker Valve in Hover Refill Elbow. Used On: P333 Door System S/N 001 for Installation on Eurocopter EC225
208
Modification of Tank Hardpoints and Struts. Used on: 208 Fire Attack System S/N 208-203-005 for Installation on Bell Helicopter Model 407 Rotorcraft S/N 53618, Tail Number N618TS
328
Hydraulic Back Pressure Repair on the Model 328 FAS
328
Installation of a Vacuum Breaker Valve on the Model 328 FAS Hover Refill Elbow
323-001
Installation of 323-001 Dual "L" Foam Bags
323
Installation of 323 Lower Shroud Brackets
308
Modification of Tank Hardpoints and Struts. Used on: 308 Fire Attack System S/N 002 For Installation on Bell Helicopter Model 407 Rotorcraft S/N 53650
310-002
Installation of Modified Tank Top Skin Inserts on Simplex Model 310-002 (1100 lt) Fire Attack Systems for Eurocopter De Mexico
304
Installation of Shims on Attachment Fittings for Simplex Model 304 Fire Attack Systems for Eagle Copters of Calgary, Alberta, Canada
301
Alteration of Tank Level Sensor Connection

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