MARO HS16
MARO HS16
MARO HS16
If a mechanic is using a Torquemeter, what he must check first?
That the torquemeter is labelled and that the due date for next calibration has not expired
A commercial transport aircraft is equipped with a set of service points for system servicing and refilling of system fluids (liquid or gaseous). Mention 5 examples of such service points.
- Portable water filling
- IDG Oil filling
- APU Oil filling
- Engine Oil filling
- Hydraulic Oil filling (Bremsflüssigkeit)
- Oxygen System
- Toilet Servicing (leeren)
The basic structure of a commercial transport aircraft is mainly made of Aluminium alloys. On which structural components no Aluminium alloy is used and what instead?
- Tital alloy (engine)
- Engine Pylon, engine disks
Composite materials are also extensively used in aircraft structures. Mention 3 examples of aircraft parts, which are most commonly produced with composite materials.
- flaps, flap track fairings, spoiler, belly fairing
- radome, stabilizer, L/G doors, naccelle rowlings
A line maintenance engineer shall exchange one of several identical components on an aircraft. He will be able to identify the component’s location by means of the
- Major zone, zone and sub zone numbers
- FIN number (Functional Identification Number)
Aircraft systems and structures are identified by means of a specific classification system. Name it.
ATA chapters (Air Transport Assocciation System)
For maintenance purposes, mainly related to the landing gear, four jacking points are provided. Where have they located?
- one below each wing
- one in front of the nose landing gear bay
- one safety point under the rear fuselage point
The air conditioning system basically ensures
- temperatur regulation
- ventilation and pressurisation
Which are the controllers related to the pressurization system?
CPC 1 & CPC 2
Correct cabin pressurization is obtained by controlling the conditioned air discharge through
two outflow valves
Which and how many valves do prevent excessive positive or negative differential pressure?
- Two Safety Valves (installed on aft pressure dome)
- One Negative Pressure Relieve Valve (installed on FWD Fuselage)
Mention 5 communication systems installed on A330 Aircraft.
- 2 HF / 3VHF Systems
- SELCAL (selective calling)
- ACARS (Aicraft Communication Addressing and Reporting System)
- SATCOM System
- Passenger Address System
- CIDS (Cabin Intercommunication Data System)
- IFE
- Interphone communication System
- Cockpit Voice Recorder
- CPDLC
For what reason interphones are used – mention 3
- Cabin interphone (Cabin - Cockpit)
- Flight interphone (Ground engineer)
- Service interphone (com. between verious interphones)
Mention the possible supply sources for the aircraft’s electrical systems
AC electrical power supplied to the aircraft systems has following voltage/frequency characteristics:
115V / 400Hz
How many Batteries are installed (name it)?
3 Batteries (2 Main Batteries BAT 1+2; 1 APU Battery)
How are the main electrical systems feeded if during flight both IDG and the APU Generator fails?
With the Emergency Generator (Constant Speed Motor / Generator) driven by the green hydraulic system & RAT activation
What are the aircraft equipment and furnishings?
- the cockpit
- the passenger compartment
- the cargo compartments
- the avionics compartment
- the emergency equipment
What is the Nacelle and what is the purpose of it?
- Nacelle is the aerodynamic structure around the basic engine (Nose Cowl or Intake Cowl, Fan Cowls, Thrus Reverser, Exhaust Nozzle and Exhaust Plug)
- The purpose is to prevent damage to the basic engine, to smoothout the Fan Air Flow, give additional strenght to the engine structure.
Write in full text the following acronyms:
- DFDR:
- THS:
- RAT:
- CVR:
- FCPC:
- SFCC:
- ACARS:
DFDR: Digital Flight Data Recorder
THS: Trimmable Horizont Stabilizer
RAT: Ram Air Turbine
CVR: Cockpit Voice Recorder
FCPC: Flight Control Primary Computer
SFCC: Slat/Flap Control Computer
ACARS: Aicraft Communication Addressing and Reporting System
Which compartments are given to load freight?
FWD, AFT and BULK Cargo compartments
The fire protection system consists of
The flight controls are driven by which hydraulic system?
Green, Blue and Yellow Hydraulic Systems
The roll movement is achieved by which surfaces?
2 Ailerons and 5 spoilers on each wing
A computer arrangement permanently controls and monitors the flight control surfaces. Name the involved computers
3 FCPC, 2 FCSC, 2 SFCC, 2 FCDC
All the flight controll surfaces are electrically controlled and hydraulically operated. Which flight Controlls (actuators) are backed-up with mechanical cables?
- THS (Pitch axis) -> Trimmable horizontal stabilizer
- Rudder (Yaw Axis)
The 3 principal flight control modes are
The purpose of the Manoeuvre Load Alleviation (MLA) function is to reduce the loads applied to the outer wing structure during high g manoeuvre. Explain the function's principle.
The function is achieved by 2 ailerons & 3 external spoilers on each wing. These surfaces are deflected upwards on both wings.
Fill in the missing word within the below shown "fly by wire" philosophy.
Auto Pilot or Pilot command/order - Computed order - ...
Feedback / Aircraft response
What are the main advantages of the "fly by wire" philosophy?
Improvement in redundancy, in handling qualities and thus in performances.
Name the three Flight Laws.
- Normal Law
- Alternate Law
- Direct Law
Name all available Fuel Tanks.
- Center Tank
- LH & RH Inner Wing Tanks
- LH & RH Outer Wing Tanks
- LH & RH Wing surge vent Tanks
- Trim Tank
- Ventilisation Tank / Vent Box
From which Fuel Tank the engine are feeded?
LH & RH Inner Wing Tanks (Collector Cell)
Are the Fuel Tank Pumps interchangeable?
The purpose of the Trim Transfer System is to
control the center of gravity position
There are a number of Magnetic Lever Indicators installed. For what reason?
To determine the physical Aircraft fuel volume in the tanks, if the indication system is inoperative or showing a wrong value.
The aircraft is equipped with three hydraulic systems which are connected to each other. True or False?
False! Green, Blue and Yellow System are fully independent
In normal operation the Hydraulic Systems are powered by Engine Driven Pumps (EDPs). What is the nominal pressure?
3000 psi
Engines are not running and the yellow electrical pump for cargo door opening is not functioning. What can be done?
Cargo door opening with the mechanical hand pump (located at the yellow ground service panel)
Which is the main Hydraulic System?
Green Hydraulic System
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Flashcards
In case of commercial air transport aircraft, is it allowed to transfer responsibility
An EASA Part M continuing airworthiness management organisation, its structures and its processes are described in
CAME
Accorting to EASA Part M some selected continuing airwothiness management tasks can be delegated to competent persons or organisations like an EASA Part 145 maintenance oragnisation for example.
An organisation sub-contracted by an operator to carry out continuing airworhiness management tasks would like to delegate the work to a further provider. The organisation sub-contracted by the operator
can not sub-contract any continuing airworthiness management tasks performed for the operator.
Which Part-M Subpart needs to be applied for / to be approved from the competent authority, in case of commercial air transport?
Occurrence reporting to the Operator, Manufacturer and the competent Authority shall be made as soon as practicable, but in any case within
72 hours
A mechanic finds a chaffed wiring by accident, which organisation is responsible for the occurrence reporting?
Part-145
During flight, the green hydralic system gets lost, which organisation is responsible for the occurrence reporting?
Part-M
What does the acronym PFC mean and what is the intention of it, mention 5 points.
Pre-flight check
walkaraound type inspection for general aircraft condition before each flight, check of emergency equipment, check the technical log, the open deferred defects, doors closed, aircraft free from ice, snow , dust and sand, check that all covers and landing gears pins are removed , check fluid levels and tyre infaltion
Who is allowed to perform the PFC?
Any person who is tranied accordingly
List 3 Continuing Airwothiness Tasks to be performed for ensuring continuing airworthiness.
- the accomplisment of pre-flight inspection
- the rectification of any defect and damage, the usage of the approved MEL and configutation deviation list
- the accomplishment of all maintenance, in accordance with the M.A.302 approved aircraft maintenance programme.
- the analysis of the effectiveness of the M.A,302 approved maintenance programme
- the accomplismemt of any applicable AD, requirement published by EASA and / or FOCA
- the accomplismemt of modification and repairs
- for non-mandatory modification and /or inspecitons, the establishment of an embodiment policy
- the performance of maintenance check flights when necessary
The MSG-3 logic underlying actual maintenance programs is
Task oriented
Write in full text the acronym MSG
Maintenance Steering Group
What is the basis for an Airline customized Mainenance Program?
Manufacturer MRBR and MPD
Mention 3 types of perios (limits) used in maintenance programmes.
- calender days
- flight hours
- flight cycles
If an airline would like to escalate maintenance program tasks, what must be considered to get it approved by the competent authority?
An escalation of tasks must be based on reliability datas (no findings, no problems, etc) and / or other supporting data.
To be done iaw the described escalation procedure within the MP Introduction.
Some periods (limits) prescribed by the mainenance prog. may be changed in a temporary way through a proceure developed in the mainenance programme and approved by the competent authority. How is this procedure called?
Maintenance Program Variation Procedure
The maintenance program details should be reviweed at least
annually
Mention a type of task contained in the maintenance programme, for which the perios (limits) cannot be changed temporaritly in any form.
Airworthiness related tasks (AD's, ALI, CMR, LLP)
A reliability programme ensures that
all maintenane program tasks are effective and their periodicity is adequate
Are Certification Maintenance Requirements (CMRs) part of the MSG-3 analysis?
No!
A CMR is a required periodic task, established dureing the design certification... usw
What are maintenance records? Mention 3 maintenance records.
- dirty finger prints (signed maintenace data)
- current AD Status List
- current Modificaton Status List
- current MPperformance list
- current LLP List
- most actual W&B Report
- List of deferred defects
- current Equipment List showing all components installed
Continuing airworthiness records should be stored in a safe way with regard to
- damage
- alteration
- theft
During an aircraft transfer to another airline, some records cannot be found anymore. What must be done?
Reconstruction of missing records (proof that work was performed with e.g. reference to other documents. Of not possible re-perform work.)
If a computer system is in use, at least one back-up system should be in place. The back-up should run at least within
24 hours
What is part of the Aircraft Log System (mention 3)?
- Flight Log
- Technical Log
- Maintenance Statement (CRS ex Maint. Letter Check)
- Previous Technical Log
- Dent & Buckle Chart
- Aircraft Status Report (Briefing Card, ADDs, MEL items)
- Smoke/Smell Reporting Sheets
Is the Aircraft Log System and its amendments subject the competent authority approval?
An operator shall ensure that the aircraft technical log is retained for ... months after the date of the last entry
36 months
The Log pages are issued in multiple carbon copies. How long must the handling agent on a certain destination retain the carbon copy?
Until the aircraft has safely landed on the target destination
What are applicable Maintenance Data (mention 5)
- EASA Requirements
- AD's
- Manufacturer Manuals (AMM, IPC, CMM, WDM, SRM, TSM, etc.)
- Maintenance Program, internal Manuals
- Service Bulletins
The Minimum Equipment List (MEL) is intended to
Is it allowed to operate iaw the manufacurer MMEL
No
List all MEL classes / items with respective limitations
- A-Item = limitaion as described in remarks
- B-Item = 3 days
- C-Item = 10 days
- D-Item = 120 days
A MEL C-Item related defect was written into the technical log on the 15.01.2013 at 08:15h. The defect shall be rectified as soon as possible but not later than
the 25.01.2013 / 23:59h
No component may be fitted to the aircraft unless it is in a satisfactory condition, has been appropriately released to service on
an EASA Form One or equivalent
Mention 3 condition on when a component shall be considered as unservicable
- expiry of the sercive life limit (days, FH, FC reached)
- non-compliance with applicable AD or other airworthiness req.
- absence of necessars informations to determine the airworthiness status
- evidence of defects or malfunctions
- involved in an incident
Write in full text the following acronyms
CAMO:
CAME:
CAMO: Continuing Airworthiness Management Organization
CAME: Continuing Airworthiness Management Exposition
Who is nominating the NPCA of an Airline?
In order to enable the competent authority to determine continued complicance with Part-M, following changes shall be notified (mention 3).
- name of organisation
- location of the organisation
- additional locations of the organisation
- the accountable manager
- any of the nominated persons
- facilities, procedures, workscope, and staff that could affect the approval.
Due to major incompliance reasons, the competent authority revokes the Airline CAMO approval. What does this mean?
The CAMO approval is a mandatory part of the AOC. If the CAMO approval is revoked, also the AOC is not valid anymore and the fleet must remain on ground.
