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Engine Trend Monitoring (where applicable) is
reviewed.
Weight and Balance data is correct or updated.
Any outstanding concessions are reviewed/
Page 4 of 19 B777 Aircraft Technical Log.
As At : 29.11.2001 Locator : C:\Documents And Settings\Administrator\My Documents\Emirates\777\Notes\Tech Log\B777 Tech Log.Doc
3.5. Maintenance Statements.
An aircraft must not be dispatched when a Scheduled Maintenance Inspection is due, as recorded in
the bottom left hand corner.
There are typically two Maintenance Statements in the Tech Log. The first is normally a statement
regarding the Check status of the aircraft (last check, next check) and the second concerns the Service status
of the aircraft (last service, next service). Either statement may include out of phase inspections or component
requirements that also limit the availability of the aircraft for flight, on both a time and date basis.
The Check statement will include release to service approvals for five aspects of aircraft serviceability :
Airframe
Engines
Electrical/Instruments/Auto
Pilot
Compass
Radio.
Each of these items should be signed off and the relevant certifying engineer’s approval number
(stamp) entered.
• Note : A flight must not depart such that the flight time required would exceed the available
hours (diversion to Alternate & subsequent recovery flight ??) as limited by either the
Scheduled Check/Service or Un-Scheduled Phase Inspection/Component changes.
• Note : Many of the checks that have a specified Airframe time limit include a tolerance
(i.e. ± 20 hours) which is to be used in evaluating available flight hours for a departure.
• The date limit of an impending Inspection / Component change falls due at the end of the day
of the date noted. Thus if an Inspection is due on 02.Apr.2000, the aircraft is current to fly
that day, as long as it will be on the ground (somewhere it can be serviced !) by 24:00 that
day, UTC time.
3.6. Aircraft Damage Charts.
These pages are used to indicate the location of known external damage to the aircraft including
windshields. Entries must be signed and dated and authorization number (stamp) applied.
• Airframe.
If further action is required (i.e. repeat inspection or permanent repair required) a deferred defect should
be raised indicating the required action.
On terminating action the entry on the damage chart should be struck out signed, dated and authorization
number (stamp) applied. The engineer is also required to enter a cross reference to the Tech Log Entry
Page/Item number where the damage was originally reported.
• Windshields (Airbus Only).
Acceptable damage on flight deck windows should be marked with a china graph pencil. The extent of the
damage with approximate dimensions should be indicated on the windshield damage charts.
Any progression of damage outside the marked area should be entered on the chart during re-inspection,
signed, dated and authorization number (stamp) applied and the windshield remarked.
In the case of windshield replacement, the damage chart should be replaced, after transferring information
for the remaining windows.
B777 Aircraft Technical Log. Page 5 of 19
Locator : C:\Documents And Settings\Administrator\My Documents\Emirates\777\Notes\Tech Log\B777 Tech Log.Doc As At : 29.11.2001
3.7. Modification Status.
This page is to convey to Flight and Maintenance crew members information on modifications recently
incorporated. Whenever necessary, Engineering will make an entry to provide Date, Modification Number and
Description of the modification. This data will remain for three calendar months – and will be removed by
Engineering.
Each entry in the Modification Status list should be signed and stamped (written number corresponding
to the Engineer’s licence will suffice)
3.8. ATA 100 Index.
This is used by maintenance crew to classify Defects according to the internationally standardised ATA
Chapter Index, as is required on the Sector Record page. The use of the ATA Chapter number is required in all
three Tech Log Volumes (Aircraft, Cabin, IFE).
4. Sector Record Pages.
The Sector Record page is designed to interface with Emirates Airlines “EMPACS” system.
The Sector Record page consists of three carbonless copy pages. The sheets are in packs of twentyfive
and are serialised (numbered sequentially). Pages are number sequentially to detect missing pages – thus
pages must be left intact in the Tech Log. The practice of removing pages after a return to stand or entry
errors must not be undertaken.
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