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ZODIAC AEROSPACE SERVICES EUROPE
TECHNICAL PUBLICATION DEPARTMENT 61, RUE PIERRE CURIE – CS20001 78373 PLAISIR CEDEX - FRANCE Phone: +33 (0)1 61 34 19 24 - Fax: +33 (0)1 61 34 21 13
Date: MAR 24/14 SERVICE BULLETIN: 766983-28-002 Revision No: 1 Page: 1/2
TRANSMITTAL SHEET
This Transmittal Sheet applies to the issue 1, dated MAR 24/14, of Service Bulletin 766983-28-002.
REASON FOR REVISION Paragraph 1. A. (2) & Appendix I : P/N 768-055, 768-100, 798-038 instead of 768-055-0, 768-100-0, 798-038-0.
REVISION SEQUENCE Original Issue: OCT 15/13.
Issue 1: MAR 24/14.
ZODIAC AEROSPACE SERVICES EUROPE
Date: MAR 24/14 SERVICE BULLETIN: 766983-28-002 Revision No. 1 Page: 2/2
PAGE LEFT BLANK INTENTIONALLY
ZODIAC AEROTECHNICS
SENSING SYSTEMS
SERVICE BULLETIN
Date: MAR 24/14 SERVICE BULLETIN: 766983-28-002 Revision No. 1 Page: 1/20
TITLE: FUEL – FUEL PROB E – INSPECTION FOR POTENTIAL SPLICE CONDUCTOR
SOLDERING DEFECT
1. PLANNING INFORMATION A. Effectivity
(1) Aircraft application This Service Bulletin applies to ATR 42/72 aircraft.
(2) Equipment involved This Service Bulletin applies to Fuel Probes 766-046-2, 766-047-2, 766-048-2, 766-793-1, 766-795-2, 766-796-2, 766-797-2, 766-983-1, 768-055, 768-100, 798-038 listed in Appendix I, produced from June 2011 to August 2013 and not identified with letter “C” in the control box of the identification plate.
B. Concurrent Requirements Affected customers should notify their usual Zodiac Aerospace Services contacts in regards of their location (See table 4. ZODIAC AEROSPACE SERVICES FACILITIES).
C. Reason The purpose of this inspection is to check and repair if necessary the connection with splice conductor on the fuel probe.
D. Description This inspection consists to check and repair if necessary the splice conductor connection on fuel probes.
A discrepancy was found on the ground wire, due to a non-compliant soldering on the splice conductor.
Letter “C” is applied on equipment once inspected (see paragraph 3. B. Identification).
E. Compliance This inspection is RECOMMENDED.
ZODIAC AEROTECHNICS
SENSING SYSTEMS
Date: MAR 24/14 SERVICE BULLETIN: 766983-28-002 Revision No. 1 Page: 2/20
F. Approval The technical content of this document (rev.0) is approved under the Authority of DOA N°EASA. 21. J. 044.
G. Manpower This Service Bulletin will be accomplished by Zodiac aircraft Sensing Systems Management (ZSSM) workshop within 15 working days from receipt of units.
(1) 1 technician.
(2) Check only: 1h00.
(3) Complete operation: 1h45.
H. Weight and Balance Not Changed.
I. Electrical Load Data Not Changed.
J. Software Accomplishment Summary Not Applicable.
K. References CMM 28-42-72.
L. Other Publications Affected Not changed.
M. Interchangeability Not applicable.
ZODIAC AEROTECHNICS
SENSING SYSTEMS
Date: MAR 24/14 SERVICE BULLETIN: 766983-28-002 Revision No. 1 Page: 3/20
2. MATERIAL INFORMATION A. Material – Price and Availability Application of this Service Bulletin is Free of Charge for equipment produced from June 2011 to August 2013, listed in Appendix I and not identified with letter “C” in the control box of the identification plate.
B. Industry Support Information
(1) The Service Bulletin can be accomplished by ZSSM workshop, the inspection will be done within 15 working days from receipt of equipment.
C. Material Necessary for Each Component Not Applicable.
D. Re-identified Parts Not applicable.
E. Tooling – Price and Availability Not Applicable.
3. ACCOMPLISHMENT INSTRUCTIONS A. Procedure CAUTION: Step n°(1) of this procedure is optional and leads to a time-saving in case of compliant splice conductor. If step n°(1) cannot be accomplished, do step n°(3).
(1) Do an X-ray inspection of the splice conductor installed in the support assembly of the fuel probe. Then do step n° (2).
ZODIAC AEROTECHNICS
SENSING SYSTEMS
Date: MAR 24/14 SERVICE BULLETIN: 766983-28-002 Revision No. 1 Page: 4/20
(2) Do a check of the splice conductor soldering according to the following tables (in case of doubt, refer to step n°(3)):
(a) If the splice conductor is compliant as described in table below, do step n°(7) for the final testing instructions.
COMPLIANT SPLICE CONDUCTOR
KEYPOINTS FIGURES Melted soldering aligned on stripped surface
(b) If the splice conductor is not compliant as described in table below, do step n°(3) for the disassembly instructions.
ZODIAC AEROTECHNICS
SENSING SYSTEMS
Date: MAR 24/14 SERVICE BULLETIN: 766983-28-002 Revision No. 1 Page: 5/20
NON-COMPLIANT SPLICE CONDUCTOR
KEYPOINTS FIGURES Level 1 defect:
Soldering not aligned on the stripped surface
Level 1 defect:
Soldering is not melted
Level 1 defect:
Missing soldering
ZODIAC AEROTECHNICS
SENSING SYSTEMS
Date: MAR 24/14 SERVICE BULLETIN: 766983-28-002 Revision No. 1 Page: 6/20
NON-COMPLIANT SPLICE CONDUCTOR
KEYPOINTS FIGURES Level 2 defect:
Partially melted soldering
(3) Disassemble the fuel probe according to the following steps and tables:
TOOLS CONSUMABLES Hot air tool with digital display (STEINEL HG 2310 or equivalent), with reduction nozzle (STEINEL n°070618 or equivalent) Beveled branchwood stick Ø4mm.
Flat-blade screwdriver 3.5x100 or equivalent ---
(a) Soften glue with hot air tool to get access to the screws of the clamp.
KEYPOINTS FIGURE T°C=300°C Airflow = mini
ZOD
SENSING S Date: MA Revision
DIAC AE
SYSTEMS AR 24/14 n No. 1
(b)
(c)
(d) EROTEC S Strip glue K Risk of s clamp Loosen th Use the h clamp.
K Risk of s clamp
CHNICS
SERVICE B e with branc
KEYPOINT scratching o he four scre hot air tool a
KEYPOINT scratching o
BULLETIN chwood stic on the ews and wa and branchw on the N:
k.
shers and r wood stick 7669 FIG remove the to remove t FIG 983-2 GURE clamp.
the remaini GURE 28-00 Page:
ng glue on 02 7/20
the
Z SE Da Re
ZODIAC
ENSING SYSTEMS ate: MAR 24/ evision No. 1
(4)
C AEROT S /14 1 Do a visu steps and Binocula magnifyi Binocula magnifyi equivale
(a) If th step
- T (rin con dis sol bet the
- T gro (B)
(b) If th n°(5 TECHNI SERVI al inspectio tables:
TOOLS ar microscop ng lamp or
KEYPOINT ar microscop ng lamp or nt e splice co p n°(6) for th KEYPOI The solde ng) is fully m ntour cernable, der is tween the s e ground wir The shield ound wire a ).
e splice c o
5) for the rew ICS
ICE BULL on of the s p pe or equivalent T pe or nductor sol he assembly COM NTS r preform melted, its is no a fillet of visible shield and re (A).
and the are aligned onductor is wiring instru NOT CO
LETIN:
plice condu ldering is c y instruction
MPLIANT SP not complia uctions.
OMPLIANT 76 ctor solderi CONS ompliant as ns.
PLICE CON ant as des c
T SPLICE C 66983 ing, accord
SUMABLES N/A FIGURE s described
NDUCTOR FIGURE cribed in t a
ONDUCTO 3-28- P ing to the f S d in table b e able below, OR -002 Page: 8/20
following elow, do do step
ZOD
SENSING S Date: MA Revision
DIAC AE
SYSTEMS AR 24/14 n No. 1
(5) Do a TO Ho 231 (ST So The Cu EROTEC S K In case to a rewiring a OOLS t air tool wit 10 or equiva TEINEL n°0 ldering iron ermal wire s tting pliers
CHNICS
SERVICE B
EYPOINT e of doubt, r step n°(5).
ccording to th digital dis alent), with 074616 or e METCAL w stripper (PB
BULLETIN refer o the followin splay (STEI angled noz quivalent) with thin-tip B150M or eq N:
ng steps an NEL HG zzle STTC-036 quivalent) 7669 FIGU nd tables.
CO Desold Groun Splice c Solder 983-2 URE
ONSUMAB dering braid nd wire W10 conductor W r W192456 28-00 Page:
LES d 04476 W192116 02 9/20
ZODIAC AEROTECHNICS
SENSING SYSTEMS
Date: MAR 24/14 SERVICE BULLETIN: 766983-28-002 Revision No. 1 Page: 10/20
(a) Desolder the core of the coaxial cable (HI) from the connector and the ground wire (M) from the lug.
KEYPOINT FIGURE Remove the red caps from the connectors.
(b) Remove the coaxial cable from the support assembly.
(c) Cut the coaxial cable very close to the splice conductor and discard the excess.
KEYPOINT FIGURE Cutting very close to the splice conductor.
(d) Remove the remaining solder from the lug of the ground wire and from the connector receptacle.
(e) Strip off 25mm of the first insulation of the coaxial cable.
HI M