Moog SB CA67006-27-04: No revision named, text

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Page 1Open in PDF

Moog

AIRCRAFT GROUP

SERVICE BULLETIN FLIGHT CONTROLS: ELEVATOR ACTUATION AND MONITORING - ELEVATOR

ELECTRO HYDROSTATIC ACTUATOR (EHA) -

VERIFICATION OF INSULATION RESISTANCE OF DIRECT DRIVE SOLENOID

OPERATED VALVE (DD SOV)

© Copyright Moog Inc. 2018 This document and the information contained herein are the property of Moog Inc. Recipient agrees to hold all such information in confidence and agrees it shall be used on ly in accordance with applicable agreements and shall not be used for any purpose, including but without limitation, it is not to be used in the creation, manufacture, development, or derivation of any repairs, modifications, spare parts, or configuration changes or to obtain FAA or any other government or regulatory approval to do so. Recipient agrees not to disclose such information to any third party except as provided for in agreements. Copying or disclosure by anyone with written permission is not authorized and may result in criminal and/or civil liability. If consent is given for reproduction in whole or in part, this notice and the notice set forth on each page of this document shall appear in any such reproduction whether in whole or in part. This document contains U.S. origin technical data controlled for export under the Export Administration Regulations (EAR), 15 CFR Parts 730 -774, ECCN:9E991. Violations of these laws may be subject to fines and penalties under the Export Administration Act.

CA67006-27-04 Feb 21/18 Page 1 of 8 Moog Proprietary Information. Subject to intellectual property and other restrictions on first page .

1. PLANNING INFORMATION A. Effectivity This service bulletin is applicable to the serial numbers of the following hardware:

P/N Model No Nomenclature Serial Numbers CA67006-017 CA67006-017 AMDT A CA67006-019 CA67006-019 AMDT A CA67006-025 -010-277U -010-277U

-010-277W -010-277W

-010-277AE

ELEVATOR EHA

ASSEMBLY 01100001-01100025, 01100027-01100039, 01100041-01100048, 01100050-01100066, 01100068-01100076, 01100079, 01100080, 01100082-01100088, 01100090, 01100092-01100097, 01100099-01100125, 01100127-01100129, 01100131, 01100133-01100135, 01100137-01100140, 01100142, 01100144-01100499, 01100501- 01100545, 01100547-01100574, 01100576-01100581, 01100584-01100592, 01100595, 01100596, 01100601-01100608, 01100610-01100614, 01100616, 01100619, 01100622-01100633, 01100636-01100639, 01100641

NOTE: Items with callout numbers marked in parentheses refer to Component Maintenance Publication (CMP) 27-38-01 for Elevator EHA Assembly illustrated parts data (IPD) unless stated differently.

B. Concurrent Requirements None

Page 2Open in PDF

Moog

AIRCRAFT GROUP

SERVICE BULLETIN FLIGHT CONTROLS: ELEVATOR ACTUATION AND MONITORING - ELEVATOR

ELECTRO HYDROSTATIC ACTUATOR (EHA) -

VERIFICATION OF INSULATION RESISTANCE OF DIRECT DRIVE SOLENOID

OPERATED VALVE (DD SOV) CA67006-27-04 Feb 21/18 Page 2 of 8 Moog Proprietary Information. Subject to intellectual property and other restrictions on first page .

C. Reason Elevator EHA direct drive solenoid operated valve assembly (140, IPD Fig 4), hereafter referred to as DD SOV, may have degraded insulation resistance that could lead to inability to operate. All affected DD SOVs should be tested for conforming insulation resistance.

D. Description This service bulletin provides testing procedures and corrective action for DD SOVs installed on EHAs listed in effectivity table in section 1.A. An insulation resistance measurement of the DD SOV is requested after 700 flight hours in-service and after three years in-service.

E. Compliance Compliance is recommended.

F. Approval The technical content of this document is approved under the authority of DOA ref.

EASA.21J.031.

G. Manpower Approximately 1 man-hour is required to complete this service bulletin.

H. Weight and Balance None I. Electrical Load Data Not changed J. Software Accomplishment Summary Not applicable

Page 3Open in PDF

Moog

AIRCRAFT GROUP

SERVICE BULLETIN FLIGHT CONTROLS: ELEVATOR ACTUATION AND MONITORING - ELEVATOR

ELECTRO HYDROSTATIC ACTUATOR (EHA) -

VERIFICATION OF INSULATION RESISTANCE OF DIRECT DRIVE SOLENOID

OPERATED VALVE (DD SOV) CA67006-27-04 Feb 21/18 Page 3 of 8 Moog Proprietary Information. Subject to intellectual property and other restrictions on first page .

K. References

1. Directly related data:

 Component Maintenance Publication (CMP) for Elevator EHA Assembly (27-38-01)  This Service Bulletin is covered by aircraft Service Bulletin No A350-27-P020.

Under no circumstances should the inspected equipment, resulting from the application of this Service Bulletin, be installed on the aircraft type unless its aircraft Service Bulletin is approved.

2. Other existing data:

None

L. Other Publications Affected  Component Maintenance Publication (CMP) for Elevator EHA Assembly (27-38-01)

M. Interchangeability of Parts Not applicable

Page 4Open in PDF

Moog

AIRCRAFT GROUP

SERVICE BULLETIN FLIGHT CONTROLS: ELEVATOR ACTUATION AND MONITORING - ELEVATOR

ELECTRO HYDROSTATIC ACTUATOR (EHA) -

VERIFICATION OF INSULATION RESISTANCE OF DIRECT DRIVE SOLENOID

OPERATED VALVE (DD SOV) CA67006-27-04 Feb 21/18 Page 4 of 8 Moog Proprietary Information. Subject to intellectual property and other restrictions on first page .

2. MATERIAL INFORMATION

A. Material - Price and Availability NOTE: DDSOV (140) replacement is only required if the resistance test fails.

Parts required to accomplish this service bulletin are listed below in Table 2-1. For more information on the Elevator EHA Assembly, refer to Elevator EHA Assembly CMP (27-38-01).

Fig.- Item New P/N Qty Nomenclature Old Part Number *Disposition Price 4 – 140 CA94862-004-001 1

DIRECT DRIVE

SOLENOID

OPERATED

VALVE (DD SOV) CA94862-004-001 C FREE OF CHARGE NA 3M Sealant 1252 AR 3M SCOTCH-

SEAL TAMPER PROOF

SEALANT

NA NA COMMERCIALLY AVAILABLE * C – Discard and replace with part from a reliable source.

NA – Not applicable Table 2-1: Parts Required to Accomplish Service Bulletin B. Industry Support Information This service bulletin is free of charge with a verified test failure during warranty period.

Please direct any questions about the contents of this service bulletin to:

Moog Commercial Aftermarket Service Center CASC@moog.com Phone: +1 (716) 687-7900

C. List of components None D. Subcomponents to be re-identified None

Page 5Open in PDF

Moog

AIRCRAFT GROUP

SERVICE BULLETIN FLIGHT CONTROLS: ELEVATOR ACTUATION AND MONITORING - ELEVATOR

ELECTRO HYDROSTATIC ACTUATOR (EHA) -

VERIFICATION OF INSULATION RESISTANCE OF DIRECT DRIVE SOLENOID

OPERATED VALVE (DD SOV) CA67006-27-04 Feb 21/18 Page 5 of 8 Moog Proprietary Information. Subject to intellectual property and other restrictions on first page .

E. Tooling Part Number Nomenclature Manufacturer Price EA027767 Hi Pot Manual Cable Assembly Moog (V94697) One cable per operator will be provided free of charge.

Model 3670 Hipot/Insulation Tester Capable of applying 500 VDC with ± 3% accuracy or better, and measuring accuracy of ± 5% or better.

Tool Associated Research

COMMERCIALLY

AVAILABLE

F. Special Tools Not applicable

Page 6Open in PDF

Moog

AIRCRAFT GROUP

SERVICE BULLETIN FLIGHT CONTROLS: ELEVATOR ACTUATION AND MONITORING - ELEVATOR

ELECTRO HYDROSTATIC ACTUATOR (EHA) -

VERIFICATION OF INSULATION RESISTANCE OF DIRECT DRIVE SOLENOID

OPERATED VALVE (DD SOV) CA67006-27-04 Feb 21/18 Page 6 of 8 Moog Proprietary Information. Subject to intellectual property and other restrictions on first page .

3. ACCOMPLISHMENT INSTRUCTIONS

A. General This test is to be performed after 700 flight hours and after 3 years in-service.

B. Preparation Make sure all power is removed from EHA.

C. Procedure

(1) Disconnect the EHA J3 connector (140, IPD Fig 3) from the electronic module (EM) (30, IPD Fig 2), refer to VSB Figure 3-1.

Figure 3-1: J3 Connector Location

(2) Connect test cable EA027767 (Tool item 1) to EHA J3 cable connector hand tight. Refer to Figure 3-1.

(3) Connect the red lead of test cable EA027767 (Tool item 1) to high voltage lead of hipot/insulation tester (Tool item 2), connect the black lead cable to ground lead of hipot/insulation tester (Tool item 2).

(4) Using hipot/insulation tester (Tool item 2) apply 500 ± 50 VDC between the two leads of test cable EA027767 (Tool item 1) to 15 ± 5 seconds.

Page 7Open in PDF

Moog

AIRCRAFT GROUP

SERVICE BULLETIN FLIGHT CONTROLS: ELEVATOR ACTUATION AND MONITORING - ELEVATOR

ELECTRO HYDROSTATIC ACTUATOR (EHA) -

VERIFICATION OF INSULATION RESISTANCE OF DIRECT DRIVE SOLENOID

OPERATED VALVE (DD SOV) CA67006-27-04 Feb 21/18 Page 7 of 8 Moog Proprietary Information. Subject to intellectual property and other restrictions on first page .

(5) For insulation resistance test after 700 flight hours in-service only:

Insulation resistance shall be 15 Megohms minimum at end of 15 seconds, if not, refer to Airbus service bulletin No A350-27-P020 for corrective action.

(6) For insulation resistance test after 3 years in-service only:

Repeat steps 3.C.1 to 3.C.4 after three years of in-flight service.

 For units measuring less than 100 Megohm, refer to Airbus service bulletin No. A350-27-P020 for corrective action.

 For units measuring more than 100 Megohms, complete steps 3.C.7 to

3.C.10 and refer to Section D to re-identify parts.

(7) Make sure power has been removed from hipot/insulation tester (Tool item 2).

(8) Disconnect test cable EA027767 (Tool item 1) from J3 connector. (Refer to VSB Figure 3-1)

(9) Connect J3 connector (140, IPD Fig 3) onto EM (30, IPD Fig 2) hand tight until the red stripe is not visible on the EM connector.

(10) Torque J3 connector (140, IPD Fig 3) to 0,23 to 0,27 m.daN (1.70 - 1.99 lbf.in).

D. Re-identification of parts

(1) On Aircraft For EHA’s in the affected SN list with insulation resistance measurement greater than 100 Megohm following 3 year insulation resistance check, perform the following:

a. Using a soft bristle cleaning brush and a low lint cloth soaked in isopropyl alcohol (IPA) clean all dirt and oil residue from the DD SOV cap.

b. Place a 2,5 - 3,8 cm (1 - 1.5 inch) diameter paint mark (3M Sealant 1252) in accordance with EML 04SAB2 on the screened DD SOV cap as shown in Figure 3-2.

Page 8Open in PDF

Moog

AIRCRAFT GROUP

SERVICE BULLETIN FLIGHT CONTROLS: ELEVATOR ACTUATION AND MONITORING - ELEVATOR

ELECTRO HYDROSTATIC ACTUATOR (EHA) -

VERIFICATION OF INSULATION RESISTANCE OF DIRECT DRIVE SOLENOID

OPERATED VALVE (DD SOV) CA67006-27-04 Feb 21/18 Page 8 of 8 Moog Proprietary Information. Subject to intellectual property and other restrictions on first page .

(2) In Shop For EHA’s in the affected SN list with a screened DD SOV (140, IPD Fig 4) installed, perform the following:

a. Using a soft bristle cleaning brush and a low lint cloth soaked in isopropyl alcohol (IPA) clean all dirt and oil residue from the DD SOV cap.

b. Place a 2,5 - 3,8 cm (1 - 1.5 inch) diameter paint mark (3M Sealant 1252) in accordance with EML 04SAB2 on the screened DD SOV cap as shown in Figure 3-2.

E. Test On aircraft refer to Airbus service bulletin No A350-27-P020 F. Close-up Not applicable

Figure 3-2: Marking of DD SOV cap