Mar 2017 Page 45
© Penny & Giles Aerospace Ltd. No part of this work may be reproduced or distributed by any
means without prior permission in writing from the copyright owner.
DATA ACQUISITION FLIGHT RECORDER Type D51615-202-XXX or D51615-
202-XXX-090- with CCU Type D51616-XXXX and CAM Type D51623-XXXX
Installation and Operating Manual with Illustrated Parts
List
Commercial in Confidence
PIM434-I
6 MAINTENANCE
CAUTION:
WHEN IT IS NECESSARY TO REMOVE THE DATA
ACQUISITION FLIGHT RECORDER TYPE D51615-202-
XXX FOR MAINTENACE POWER MUST BE SWITCHED
OFF AT LEAST FIVE SECONDS BEFORE THE UNIT IS
REMOVED FROM THE AIRCRAFT.
6.1 GENERAL
The concept of On Condition (OC) maintenance applies to the
DAFR as far as is practicable. OC is a maintenance process
having repetitive inspections or tests to determine the
condition of an assembly with regard to continued
serviceability. Corrective action is taken when required by
assembly condition. Comprehensive Built-In Test Equipment
(BITE) is provided within the equipment which identifies any
subsystem failures and facilitates fault finding down to
module (circuit board) level. The BITE can be interrogated
using Portable Replay Equipment (PRE).
Maintenance includes periodic inspections of the DAFR and
the Underwater Locator Beacon (ULB) and servicing and
maintenance of the ULB.
6.2 DAFR PERIODIC MAINTENANCE TASKS
The DAFR periodic maintenance tasks are to be carried out at
Pre-flight, six monthly, 12 monthly, 24 monthly and 72
monthly intervals, or as agreed between the Operator and the
applicable Regulatory Authority are shown in Table 5.
The periodic maintenance tasks shown in Table 5 except CVR
Replay and 72 monthly Inspection can be performed on
aircraft.
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