10.7 Applicable Requirements Flashcards
What do maintenance programmes and schedules outline?
Lists of tasks with intervals specified in terms of flight hours, flight cycles or calendar time
What is the block (pyramid) maintenance system?
It is often represented by letter checks A,B,C and D are grouped together
What happens as the flight hours increase?
The amount of task will also increase
Who would use the block (pyramid) method?
Long haul carries and older aircraft that can be scheduled for longer periods on the ground
What are the disadvantages of the block (pyramid) method?
It involves large gaps between checks and the plane can be on the ground for extended periods
How does the equalised (progressive) system checks work?
These checks, sometimes referred to as E‑checks, contain the same tasks as in the Block system but are packaged differently. For example, the work involved in a D‑check could be distributed across multiple C‑checks (C1, C2, C3, C4), which progressively involve deeper inspections or component replacements
Who is the equalised (Progressive) checks suitable for?
Shirt haul, low cost carriers and newer aircraft that require minimal downtime
Explain an A check?
Performed every 500-800 flying hours or 200-400 cycles
Takes about 20-50 man hours
Can be performed overnight at airport terminal or gate hangar
Explain a B check?
Performed every 4-6 months
Takes approx 150 man hours
Usually performed within 1 and 3 days
A-1 through A-10 complete a B check
Explain a C check?
Performed every 20 to 24 months
Takes 6000 man hours
Takes 1-2 weeks
Explain a D check?
Performed approx every 5 years
Uses 50,000 man hours
Can take 1-2 months
What is an airworthiness directive for?
Unsafe conditions or something that is likely to develop
Are AD mandatory?
Yes
What must the holder of relevant design/manufacturer do for the CAA?
Propose required action (requires CAA approval)
Provide data to relevant authorities and organisations
What will an AD contain?
an identification of the unsafe condition;
an identification of the affected aircraft;
the action(s) required;
the compliance time for the required action(s);
the date of entry into force.
Who will approve an alternative means of compliance for an AD?
The CAA
What do the applicants seeking an alternative means of compliance need to do?
demonstrate that an equivalent level of safety is achieved compared to the compliance with the original AD
What happens if an AD is superseded what happens to the alternative means of compliance?
They will become invalid
What is a Sensitive Security Airworthiness Directives?
It is an AD yet it contains security sensitive information
When is an SSAD uploaded to the UK CAA AD publishing tool?
After the end of the SSAD compliance time and without attachments
What are service bulletins?
These are optional improvements and can require alteration to the aircraft
What do the operators do with service bulletins?
Operators use discretion on wether or not to incorporate the bulletins
The SB include one of these four compliance recommendation categories what are these?
Service Bulletin must be accomplished
Service Bulletin recommended to be accomplished to prevent significant operational disruptions
Service Bulletin to introduce improvements
Service Bulletin for convenience or option
Can a sb be cancelled after being issued?
Must not be cancelled once issued
What happens if the original intent of the service bulletins becomes invalid?
A revision to the original service bulletin or a new bulletin needs to be issued for the purpose of restoring the units already modified to the original or preferred configuration
What must happen if a new service bulletin is issued in top of one that has already been issued?
then a revision to the invalidated Service Bulletin must also be issued, in order to stop its progression
What must service bulletins not be used for?
must not be used to cover routine recommended inspections/checks, standard repairs, or revisions to maintenance practices or shop procedures
What is an alert SB?
Are issued on all matters requiring urgent attention usually matter affecting safety
What are standard SB?
Standard Service Bulletins are issued where the use of Alert Service Bulletins is not required
What are engine conversion SB.
Conversion Service Bulletins will be issued to provide operators with the information necessary to convert engine models from one designation level to another
What does a service bulletin contain?
Service Bulletins must contain a title. It contains the chapter name keyword, and a brief statement of the work involved.
What is in the body of the SB?
Planning Information
Material Information
Accomplishment Instructions and optional Appendices
What is a service information letter?
They are from manufacturers and give operators advisory actions or other useful info about their product
What must modifications and repairs be carried out using what data and who is it approved by?
Maintenance data
Approved by the UK CAA
Approved by a design organisation complying with Annex I
What do you have to do if the damage is beyond the limits or outside the scope of damage?
Repair by replacement of damaged parts (classified as maintenance)
Requesting technical support from the following:
Type Certificate holder
An approved Part-21 Organisation
A UK CAA approval of the particular repair data
What is the maintenance data for?
The applicable instructions for continuing airworthiness and other maintenance instructions and For components approved for installation by the design approval holder
What are some example of maintenance data?
Aircraft Maintenance Manuals (AMM)
Structural Repair Manuals (SRM)
Illustrated Parts Catalogue (IPC)
Wiring Diagram Manuals (WDM)
Component Maintenance Manual (CMM)
Trouble Shooting Manual (TSM) or Fault Isolation Manual (FIM)
What is specification ATA 100?
the industry’s recommended format for the layout of aircraft technical manuals
What is the online maintenance data base?
ATA iSpec 2200
Who produces the AMM?
By the manufacturer and applicable to 1 aircraft type
What happens if you use a different organisations manual or the wrong manual?
The work you are doing can be illegal
What is at the start of the AMM?
A set of preliminary pages
What do the preliminary pages contain?
List of chapters, record of revisions, list of temporary revisions, service bulletin list, deactivation/reactivation index
What do the Preliminary Pages of Each AMM Chapter contain?
Highlights: reason for revision
List of effective pages: The list consists of a table showing each page number in the whole chapter and the effective date for each page
Table of contents: lists every section of the chapter and the subject material contained in the sections
Who is the IPC produced by?
The manufacturer
What does the ipc consist of?
It consists of exploded drawings showing every area of the aircraft and associated pages listing the illustrated parts and giving the part numbers of parts, assemblies, and sub-assemblies.
What is in the SRM?
The SRM contains info and specific instructions for the repair of primary and secondary structures of the aircraft
What does the info in the SRM allow?
The engineer to assess the damage to the aircraft, identify the allowable limits for damage at that point and carry out the appropriate repair if necessary
What does the wiring diagram manual cover?
The documentation of all aspects of the wiring on the aircraft, engine, and components
What are the three parts the wiring diagram manual is split into?
Aircraft Schematic Manual (ASM)
Aircraft Wiring Manual (AWM)
Aircraft Wiring List (AWL)
What does the component maintenance manual contain?
contains the information required for the maintenance, repair, and overhaul of aircraft components
Where is the manual usually used?
The manual is intended for use in a workshop environment by overhaul engineers rather than by an aircraft engineer
What is the purpose of the troubleshooting manual?
to allow the systematic identification, isolation, and rectification of aircraft faults
What do the manual detail?
The most likely faults on the aircraft and give the procedure to isolate and rectify the fault
Who issues normal revisions?
Aircraft manufacturer or design authority
When will normal revisions be released?
Are normally released quarterly but also may be released at the times of major changes to the manual
What do the manuals have for the revisions?
They all have a record page and this will have areas for recording the revision numbers the sate and who incorporated them
How long should it take for the revisions to be transmitted from manufacturer or design?
Within 10 days of the pages being printed
When will a temporary revision be put in place?
When there is an instance where the manufacturer decides to release an amendment at short notice and there is no time to prepare a complete revision
What is the master minimum equipment list?
A document that lists the equipment that may be temporarily inoperative
Who provides the master minimum equipment list?
The manufacturer
What is the minimum equipment list?
A document prepared by the operator taking into account the relevant operational and maintenance conditions they operate under
