Simplex Manufacturing SL 2017-030: No revision named, text

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Page 1OCROpen in PDF

SIMPLEX Mfg Aviation Mission Equipment SL2017-030 Rev. IR Page 1 of 4

SERVICE LETTER Revision Description Revision Date IR Initial Release March 12, 2018 Written By: Approved By:

Ellen Brooks Daniel Wright Engineering Technical Writer V.P. of Operations SUBJECT: Model R44III Spray System Honda Pump Outlet Cover Installation.

APPLICABILITY: Model R44Ill Spray System Serial numbers 0045 through 178.

SUMMARY: This Service Letter is a follow-up to Service Letter SL2017-017 which was previously released by Simplex Mfg. Service Letter SL2017-017 provided, free of charge, parts, shipping, and instructions for two (2) mandatory upgrades. The upgrades were:

1) Replace the fitting from the Pump Housing to the Pressure Camlock Yoke.

2) Secure the hose assemblies to the Fwd RH Boom.

The FAA has mandated an additional "shield device" be added to the new fitting area to reduce the chance of water entering the aircraft engine inlet in the very unlikely event that the new, stronger fitting fails.

PURPOSE: This service letter will provide instructions for installation of the new Pump Outlet Cover.

COMPLIANCE: Mandatory for all Model R44IlI Spray Systems noted above.

SL2017-017 must be complied with before implementing this service letter (SL2017-

030), or completed at the same time as this service letter.

APPROVAL: The resultant alteration to the affected aircraft described by this Service Letter has been shown to comply with the applicable Federal Aviation Regulations and is FAA Approved.

ADDITIONAL DOCUMENTS: Installation Manual, Document No. PM001-HPR44||I-25-008, Rev 7 Instructions for Continued Airworthiness, Document No. PM011-HPR44III-25-007, Rev 8 Alert Service Bulletin, Document No. ASB2017-001, Rev IR Service Letter, SL2017-017 WEIGHT AND BALANCE: No effect.

ELECTRICAL LOADS: No effect.

TOOLS: Standard Aviation Shop Tools SIMPLEX Mig Aviation Mission Equipment 13340 NE Whitaker Way, Portland Oregon USA 97230 Phone: +1 (503) 257-3511 Fax: +1 (503) 257-8556 mail@simplexmfg.com

Page 2Open in PDF

SL2017‐030 Rev. IR Page 2 of 4

13340 NE Whitaker Way, Portland Oregon USA 97230 Phone: +1 (503) 257‐3511 Fax: +1 (503) 257‐8556 mail@simplexmfg.com REQUIRED PARTS: Parts required to comply with this service letter are listed i n Table 1. These parts must be purchased from Simplex Manufacturing Co. or an approved local authorized Simplex Representative.

Table 1: Required Parts Simplex Part Number Description Quantity 244‐302056‐001 PUMP OUTLET COVER 1 MS27039C1‐09 SCREW, PAN HD, CRES, 10‐32: GRIP 0.125, OAL 0.594 1 MS21083C3 NUT, SELF‐LOCKING, #10‐32, CRES, LOW HEIGHT 1 MS21919WDG48 SUPPORT CLAMP, CUSHIONED, 3.000, ID 1 NAS1149C0332R WASHER, FLAT, #10 X .032 THK, 300 SS, PASSIVATED 2 MATERIALS: Loctite, #242 (blue) (not provided) Bolt, Hex Head, 316 Stainless Steel, 1/4‐28 x 2 1/2” (optional) Nut, 316 Stainless Steel, 1/4‐28 (optional)

The information contained in the letter is proprietary to Simplex Manufacturing Co. Inc. Disclosure, reproduction, or use of this data for any purpose other than the operation and maintenance of the Simplex Manufacturing System is forbidden without prior written authorization from Simplex Manufacturing Co. Inc., Portland, Oregon.

Page 3Open in PDF

SL2017‐030 Rev. IR Page 3 of 4

13340 NE Whitaker Way, Portland Oregon USA 97230 Phone: +1 (503) 257‐3511 Fax: +1 (503) 257‐8556 mail@simplexmfg.com ACCOMPLISHMENT INSTRUCTIONS As mandated by the FAA, Simplex Mfg. has manufactured a Pump Outlet Cover to prevent water from entering the aircraft engine inlet in the very unlikely event that the new Poly Elbow (P/N 000‐123847‐000), installed per SL2017‐017, fails. To ensure safe operation of the R44III Spray System, the Pump Outlet Cover must be installed as instructed below.

1. Remove the top two sets of nuts and bolts from the Pump Housing. See Figure 1.

2. Reserve the hardware for use in the installation. Inspect the hardware for damage and replace as required.

If nuts and bolts need to be replaced, use a similar 316 stainless steel 1/4-28 x 2 1/2” bolt and corresponding nut.

3. Align the bolt holes in the Pump Outlet Cover with the empty bolt holes in the Pump Housing. See Figure 1.

4. Reinstall the original nuts and bolts using Loctite #242 (blue) on the nut side. Torque to a maximum of 40‐45 in.lbs.

DO NOT OVER-TIGHTEN AS THE MATERIAL COULD BE DAMAGED.

5. Install the Cushion Clamp (P/N MS21919WDG48) tight against the vertical collar of the Poly Elbow. See Figure 1.

6. Use the Cushion Clamp as a guide to match drill a 0.197" ±0.005" hole in the Pump Outlet Cover. Ensure an adequate edge margin.

7. Secure the Cushion Clamp with the Screw (P/N MS27039C1‐09), two (2) Washers (P/N NAS1149C0332R), and Self‐Locking Nut (P/N MS21083C3).

8. In the rotorcraft’s logbook, indicate that Simplex Service Letter SL2017‐030 has been complied with.

Page 4OCROpen in PDF

\ SIMPLEX Mfg Aviation Mission Equipment SL2017-030 Rev. IR Page 4 of 4

DEFLECTOR SHIELD BOLT WASHER (2 PL) NUT

CUSHION CLAMP ORIGINAL BOLT (2 PL) ORIGINAL NUT (2 PL) A) Figure 2: Pump Outlet Cover Installation (Poly Elbow hidden) SIMPLEX Mfg Aviation Mission Equipment 13340 NE Whitaker Way, Portland Oregon USA 97230 Phone: +1 (503) 257-3511 Fax: +1 (503) 257-8556 mail@simplexmfg.com