Premier Aircraft Service PAS-WI-MSB-40-2011-001

 5540 NW 23 Avenue Hanger 14 Page 1 of 11 

 Fort Lauderdale, FL 33309 03/04/2011 

 Rev. I/R 

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WORK INSTRUCTION 

PAS-WI-MSB-40-2011-001 

VCS Compressor Removal 

LOG OF REVISIONS 

Rev. Date Description Section Approval

I/R 03/04/2011 Initial Release All 

I GENERAL INFORMATION

I.1 Subject: 

 

 This Service Bulletin addresses the necessary removal of the VCS 

 Compressor and Associated Mounting Hardware and Pickling of the 

 System Installed with STC # SA03674AT. 

I.2 Reference Documents: 

 

 1. DA 40 Series Airplane Maintenance Manual Doc. No. 6.02.01, latest 

 effective issue. 

 

 2. DER Services Doc. EO-2006-2006-020-1 Rev. D INSTALLATION 

 INSTRUCTIONS. 

 3. Drawing SII 2216157 Kit, Tensioning Bracket Installation Rev. B 

 

 4. Instruction for Continued Airworthiness Doc.# SII ASI-772216A Rev. F 

 5. PAS-MSB-40-2011-001 VCS Compressor Removal & System Pickle 

 Rev. I/R dated 03/04/2011 
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I.3 Remarks 

 

 a) All measures must be carried out by a certified aircraft service 

 station or a certified maintenance mechanic. 

 b) Accomplishment of the measures must be confirmed in the aircraft log 

 book. 

 

 c) In case of doubt, contact Premier Aircraft Service. 

 d) Contact Premier Aircraft Service for all Material, Labor, credit issues. 

 e) A Confirmation Document is Provided at the End of PAS-WI-40-2011- 

 001 and Must be Filled Out, Signed by a Certified Maintenance 

 Mechanic, and Submitted to Premier Aircraft Service for Acceptance 

 Prior to Aircraft Return to Service. 

II DRAWINGS, SPECIAL TOOLS, MATERIALS

II.1 Drawings 

 

 a) SII 2216157 Rev.B KIT, TENSIONING BRACKET INSTALLATION.

II.2 Special Tools 

 

 Ref. Instruction for Continued Airworthiness 

 SII ASI-772216A Rev. F 

 

II.3 Materials 

 

Material provided by Premier Aircraft Services: 

 

Qty Description Part Number 

1 CAP ASC8 

1 CAP ASC10 

1 SEAL DISC8 

1 SEAL DISC10 
 Premier Aircraft Service PAS-WI-MSB-40-2011-001

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III INSTRUCTIONS

WI # Work Instruction Mech. Insp

. 

III-1 Prepare aircraft for maintenance by disconnecting the 

battery, and following recommended procedures in the 

Diamond DA40 Maintenance Manual Rev 4. Sec. 6.02.01. 

 

III-2 Gain access to the aircraft and prepare it for the upgrade 

installation. 

 a. Disconnect power to aircraft per MM Sec. 24-60-00. 

 b. Removing the upper and lower engine cowling. 

 

III-3 Remove lower bolt. 

 

III-4 Remove Inboard Bolt. 

 
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III-5 Hold Tensioner, loosen pivot nut, release belt tension, and 

cut and remove belt. 

 
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III-6 Disconnect compressor electrical feed and ground wire. 

Cap and stow. Recover Freon from system. (Ref. ASI772216A Rev. F Section 5). Disconnect refrigerant hoses 

from compressor. 

 
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III-7 Remove Pivot Bolt, Associated Hardware, and 

Compressor. 

 
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III-8 

. 

Remove Compressor mount bracket and corresponding 

hardware. Once Bracket is removed re-install the washers 

and nut on the lower aft stud. Torque per Lycoming 

Maintenance Manual. 

 
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III-9 Remove VCS Hoses at firewall .Cap through fittings in 

firewall using ASC8 & ASC 10 Caps with Disc8 & Disc 10 

Seals. 

 
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III-10 Pressurize the system using the recovered Freon to 25lbs 

max. Check for leaks. (Ref. ASI-772216A Rev. F Section 5) 

Note: If system remains open for more than 1 hour 

follow full evacuation procedure prior to pressurizing.

(Ref. ASI-772216A Rev. F Section 5)

 

III-11 Plug / Cap Hose and compressor openings using 

appropriate plugs / caps. 

 
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III-12 Tag compressor as In Op. Tag / Identify all removed parts. 

Direct compressor, hoses, and all hardware to stores. 

 

III-13 Pull and collar compressor breaker. Placard as IN OP. 

 

III-14 Reinstall all remaining items removed to perform removal. 

(Ref. Diamond DA40 Maintenance Manual Rev 4.) 

 

 

IV WEIGHT & BALANCE

 

Weight Lbs. Weight Kgs. Arm Arm (MM) 

Subtract 25.75 Subtract 11.68 22.67 575.81 
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PAS-WI-MSB-40-2011-001 

Compliance Confirmation Sheet 

The above processes in PAS-WI-MSB-40-2011-001 have been 

accomplished, inspected, and signed off by a certified maintenance 

mechanic. 

Position Print Name Signature 

Operator: 

Mechanic: 

Inspector: 

Serial # Accomplishment Date Current Hours 

 

Once completed, Immediately fax or E Mail this sheet to: 

Premier Aircraft Services Care of Ray Bysiewicz 

(954) 334-1489 or Ray.Bysiewicz@flypas.com

Premier Aircraft Service Review 

Position Print Name Signature 

STC Holder 

Authorized 

Representative