1. Reason for the Job
__________________
This task gives you all the fluid leak measurement procedures for flight R controls, fuel, hydraulic, landing gear, cargo door and power plant systems.
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
28-11-00-280-002 Fuel Tank Leak Checks 29-00-00-790-001 Check of the External Leakage of Hydraulic Components 71-00-00-710-006 Minimum Idle Check 73-11-50-360-002 Leak Check of the Fuel Return Valve 79-00-00-210-003 Visual Inspection of the Oil System
3. Job Set-up
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Subtask 05-50-00-941-052
A. Not Applicable
4. Procedure
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Subtask 05-50-00-360-050
A. Measurement of Leaks
(1)
Measurement of hydraulic system leaks (Ref. TASK 29-00-00-790-001).
(2)
Measurement of flight control system leaks (Ref. TASK 29-00-00-790-001).
(3)
Measurement of fuel system leaks (Ref. TASK 28-11-00-280-002).
(4)
Measurement of landing gear system leaks (Ref. TASK 29-00-00-790-001).
R (5) Measurement of cargo door system leaks (Ref. TASK 29-00-00-790-001).
R (6) Measurement of power plant system leaks (Ref. TASK 71-00-00-710-006), (Ref. TASK 73-11-50-360-002) and (Ref. TASK 79-00-00-210-003).
INSPECTIONS - DESCRIPTION AND OPERATION
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1. General
_______ This section contains those inspections that are necessary after an incident or flight in abnormal conditions and will, in most cases, be called for as a result of flight crew report.
R If there is no inspection in this section applicable to incident or abnormal R flight conditions that occurred, operators must tell Airbus and make a R request for more instructions.
A. Inspection Coverage It is not possible to lay down precise details of the inspection procedure to adopted after every incident because of the wide variations of weight, speed, nature and direction of loads, weather conditions and component failure patterns. Therefore these inspections have been written for the worst possible case. In order to gain an indication of the severity of the incident and to facilitate rapid location of primary damage it is essential that full information is obtained from the flight crew. Therefore prior to starting an inspection consult the crew and ascertain details of:
-Weather conditions
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Aircraft speed and flight attitude
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Aircraft weight and fuel distribution
-In landing mode, if touchdown was straight, drifting, wing low, nose high or low
-If any noise of impact or indicative of structure or component failure was heard
-Relevant instrument indications Printout of the maintenance data recorder tape will provide valuable additional data and indication of system malfunction.
B. Inspection Sequence To permit simultaneous inspection of several areas of the aircraft the inspection has been divided into a number of "Packages". For example: "Inspection after Hail Impact" requires on Phase 1 a complete airframe external check. Therefore this is divided into four major zones: fuselage, wings, nacelles/pylons and stabilizers. These major zones are further divided into smailer zones or major components. The small zones are then broken down into items, which can be individually signed off as inspection is completed. The inspections are divided into three phases:
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Phase 1: is a general inspection for primary damage and indication of remote damage and is mainly external.
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Phase 2: is a more detailed inspection and is mainly internal. Some component removal may be called up.
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Phase 3: is a very detailed inspection involving component removal and strip down.
If the Phase 1 inspection reveals no damage, no further examination is
necessary.
If Phase 1 reveals damage then Phase 2 must be accomplished.
If Phase 2 reveals damage then Phase 3 must be accomplished.
C. Inspection Form (Ref. Fig. 001) The layout of the inspection form has been arranged as follows:
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columns are explained on the figure
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columns INSP. CODE and INSP. SIGN are provided for use by the operators, they wish to use them, for inspection intensity code and accomplishment signature. The forms may thus be photo-copied, used as work cards and then filed with the aircraft technical record on completion.
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