Section 6. AIRCRAFT MAINTENANCE. Initial Provisioning (Spare parts Management). Production Planning and Control. “Plan your work and then work your plan.”. Production Planning and Control.
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“Plan your work and then work your plan.”
forecasting, planning and control.
- Short-term forecasts are more detailed and usually
cover 1-2 years. These forecasts contain more definitive
plans with attention to actual manpower and budget
- Long-term. Larger airlines may also develop intermediate
forecasts for periods of 2 to 5 years.
- What the planners need to know to adjust future plans are the following:
1. The amount of time required to perform each task
2. The amount of time lost in waiting for delivery of parts
3. The down time for unusual circumstances
4. The additional time required for non-routine findings
5. The variation in manpower availability
6. Lost time due to parts robbing from other jobs (or from
the aircraft in check)
Plus The damage to a company’s image
MTBF : Mean Time Between Failure
MTBUR : Mean Time Between Unscheduled removals
TAT : Turn Around Time
[Time in days from equipment failure to it being available, serviceable again to the airline]
MTBF = Number of Hard failures
Number of equipment hours flown
MTBUR = Number of removals of equipment considered faulty Number of equipment hours flown
In a given Fleet
dispatched if some reservations are met
To be changed or repaired at the first
(sometimes defined) opportunity
A.O.G. Aircraft On Ground
The Battle Wages On
Approved technical stores comprise of Quarantine and Bonded stores.
Quarantine Store - Incoming: Provide storage for incoming material and parts.
Quarantine store – Unserviceable: Provide storage for parts and material awaiting investigation and dispatch for repair.
Bonded store: Provide storage of parts and material that have been proved authentic.
The approved technical stores will be contained in the user manual which could be a stand alone document or part of the GMM/TPPM/MPM / MCM and will address the following:
a ) Quarantine and Bonded stores;
b) Incoming and outgoing inspections;
c) Shelf/storage life;
d) Records control;
e) Parts identification ( markings);
f) Storage of instruments, tools, rubber items etc;
g) Segregation of parts and materials in the bonded store;
h) Storage facility;
i) Special storage.
a) The authority under which they are issued;
b) Reference identification for the purposes of traceability;
c) Name, address and approval reference of the issuing organization;
d) Work order, contract or invoice number;
e) Quantity, description, part numbers and, if applicable, serial numbers of the parts;
f) Relevant information concerning any shelf life limitations, special storage condition requirements, compliance or non-compliance with any airworthiness directives, etc;
g) The signature and approval reference of the person issuing the document; and
h) Whether the part is new or used.