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F6177 SERVICE INFORMATION LETTER (S.I.L.)

S.I.L. N° 4.99

MAINTENANCE INTERVAL and EXTENSION PROCEDURE FOR BATTERIES P/N 405CH and 505CH

REASON This SIL presents the interval between maintenance and then the conditions, which have to be respected to allow the increase of the interval between maintenance. MAINTENANCE INTERVAL DESCRIPTION Battery P/N 405CH is on board of the Airbus A330 and A340 aircraft. Battery P/N 505CH is on board of the Airbus A340-500/600 aircraft. These two batteries have a similar interval between maintenance. At entry into service of Airbus A330, A340 and A340-500/600 aircraft, the initial interval between maintenance was: - Regular check (includes a periodical check) : every 2000 operating hours - General overhaul : yearly The first maintenance interval extension, increasing the interval between regular checks to 3000 operating hours, has been authorized following analysis of all data collected from operators on their fleets. In the Check chapter of their Component Maintenance Manual, the following maintenance operations are indicated : Interval between maintenance. - Regular check (includes a periodical check) : every 3000 operating hours - General overhaul : yearly NOTE: according to aircraft operation, the ratio between operating hours (aircraft Power ON) and flying hours is generally in the 1.2 to 1.8 range for A330 and A340 aircraft and equal to 1.2 for A340-500/600 aircraft. MAINTENANCE INTERVAL EXTENSION PROCEDURE The Airbus operator, which uses the battery P/N 405CH and/or the battery P/N 505CH may be authorized to extend the interval between regular check beyond 3000 operating hours if the following procedure and conditions are respected : 1) During a period of one full year the operator must collect on all the requested data contained in the two attached forms : FORM1 and FORM2. a) FORM1 : fleet data, global data on fleet (one form per month to be filled) b) FORM2 : one data-sheet to be filled per battery checked in the battery shop (must be the reflect of the data written in the log book) n FORM2 in a month if n checks performed on batteries

2005, April 12th

SIL N°04.99 ­ Rev.2

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F6177 SERVICE INFORMATION LETTER (S.I.L.)

2) After a period of one year the operator shall submit the complete data set to Saft for the approval of their request for extension. BENEFITS 1) longer interval between maintenance then lower Direct Maintenance Cost 2) less handling, lower work load in battery shop, lower spares stock 3) lower administrative cost (planning, report forms release and dispatch) EFFECTIVITY Holders of P/N 405CH unit : CMM 24 38 53 CMM on Airbus A330 and/or A340 aircraft P/N 505CH unit : CMM 24 38 54 CMM on Airbus A340-500/600 aircraft

2005, April 12th

SIL N°04.99 ­ Rev.2

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F6177 SERVICE INFORMATION LETTER (S.I.L.)

P/N 405CH BATTERY QPA=3 for AIRBUS A330 and A340 MAINTENANCE INTERVAL and EXTENSION PROCEDURE Maintenance data feedback program FORM 1

Reporting period: Month / YYYY I. AIRBUS LR fleet data 1. Quantity of aircraft in service a) A330 aircraft b) A340 aircraft 2. Total fleet flight hours (FH) a) A330 fleet flight hours b) A340 fleet flight hours 3. Total fleet cycles a) A330 fleet cycles b) A340 fleet cycles 4. Operating Hours (OH) (Operating Hours = hours between Power ON including GPU supply duration) a) A330 Operating Hours b) A340 Operating Hours II. P/N 405CH Battery data (removals) 1. Total number of scheduled (S.R.) and unschedulded (U.R.) battery removals a) A330 schedulded and unschedulded battery removals b) A340 schedulded and unschedulded battery removals 2. Number of unscheduled (U.R.) battery removals a) A330 unscheduled battery removals b) A340 unscheduled battery removals 3. Number of CONFIRMED U.R. (due to battery fault confirmed during maintenance) a) A330 Confirmed unscheduled battery removals b) A340 Confirmed unscheduled battery removals

2005, April 12th

SIL N°04.99 ­ Rev.2

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F6177 SERVICE INFORMATION LETTER (S.I.L.)

P/N 405CH BATTERY QPA=3 for AIRBUS A330 and A340 MAINTENANCE INTERVAL and EXTENSION PROCEDURE Maintenance data feedback program

Reporting period: Battery shop data Data sheet Month n°:

(with n= number of 405CH battery check during the month)

FORM 2

Data requested in Log book for each battery maintained during the above period: 1. 2. 3. 4. 5. 6. 7. 8. 9. Aircraft type (removed from) Battery type Serial Number First Installation date Flight hours since last check Flight cycles since last check Total battery flight hours Date of removal Reason for removal: a) Scheduled regular check b) Scheduled general overhaul c) Unscheduled removal 10. Details : Visual aspect comment 11. Capacity data a) Capacity of the battery at initial discharge b) Capacity of the battery at final check c) Minimum cell capacity at final check 12. Voltage data (end of charge voltage of the cells) a) Voltage mini b) Voltage average c) Voltage maxi 13. Distilled water data a) Average quantity (cc) b) Maxi quantity (cc) 14. Number of cells replaced A330 A340

Yes Yes

Confirmed Non confirmed

due to capacity due to charge voltage due to others reasons

2005, April 12th

SIL N°04-99 ­ Rev.2

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F6177 SERVICE INFORMATION LETTER (S.I.L.)

P/N 505CH BATTERY QPA=3 for AIRBUS A340-500/600 MAINTENANCE INTERVAL and EXTENSION PROCEDURE

Maintenance data feedback program

Reporting period: I. AIRBUS LR fleet data 1. Quantity of aircraft A340-500/600 in service 2. Total A340-500/600 fleet flight hours (FH) 3. Total A340-500/-600 fleet cycles

FORM 1

4. A340-500/600 Operating Hours (OH) (Operating Hours = hours between Power ON including GPU supply duration) II. P/N 505CH Battery data (removals)

1. Total number of A340-500/600 scheduled (S.R.) and unschedulded (U.R) battery removals

2. Number of A340-500/600 unscheduled (U.R) battery removals

3. Number of A340-500/600 CONFIRMED U.R. (due to battery fault confirmed during maintenance)

2005, April 12th

SIL N° 04.99 ­ Rev.2

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F6177 SERVICE INFORMATION LETTER (S.I.L.)

P/N 505CH BATTERY QPA=3 for AIRBUS A340-500/600 MAINTENANCE INTERVAL and EXTENSION PROCEDURE Maintenance data feedback program

Reporting period:

FORM 2

Battery shop data

Data sheet Month n°:

(with n= number of 505CH battery check during the month)

Data requested in Log book for each battery maintained during the above period:

1. 2. 3. 4. 5. 6. 7. 8. 9.

Aircraft type (removed from) Battery type Serial Number First Installation date Flight hours since last check Flight cycles since last check Total battery flight hours Date of removal Reason for removal: a) Scheduled regular check b) Scheduled general overhaul c) Unscheduled removal 10. Details : Visual aspect comment 11. Capacity data a) Capacity of the battery at initial discharge b) Capacity of the battery at final check c) Minimum cell capacity at final check 12. Voltage data (end of charge voltage of the cells) a) Voltage mini b) Voltage average c) Voltage maxi 13. Distilled water data a) Average quantity (cc) b) Maxi quantity (cc) 14. Number of cells replaced

A340-500

A340-600

Yes Yes

Confirmed Non confirmed

due to capacity due to charge voltage due to others reasons

2005, April 12th

SIL N° 04.99 ­ Rev.2

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