The access estimates include the opening and closing of access panels and doors, removal and installation of lining, insulation blankets, floor panels, fuel tank purging, etc.
The estimates are for direct labor only and are based on best judgement factors, assuming personnel are experienced and all required equipment and tooling is readily available. They do not include set-up, planning, familiarization, tool acquisition or lost time. Therefore, operators should factor these estimates, as necessary, based on their own experience.
Since manhour and elapsed times include access and restoration time for each SSI inspection option, those inspection requirements which can be performed concurrently or consecutively in the same area will result in manhour and elapsed time reductions.
Original D6-82669 7.0 DOCUMENT USAGE
7.1.5 SSI Example Explanation
The following explains the data found on the SSI Form (see Page 7.0.3). The EXAMPLE does not apply to any particular SSI in this document. This example presents typical information that may be found on different SSI forms and is for purposes of illustration only.
[1] Alpha-numerical identifier and Inspection Instructions for the SSI
.
Alphabetical portion:
W = Wing
F = Fuselage
E = Empennage
L = Flap
.
Numerical portion: This number represents a specific structural member(s) within the general area described by the alphabetical portion of the identifier.
Example:
The SSI W-XX identifies the following structure:
W = Wing
XX = Wing, Center Section Front Spar, Lower Chord and Skin
.
Section 8.0 and 11.0 list all SSIs by identifier and title.
[2] TITLE: A brief description of the SSI.
[3] REFERENCES: MPD: Maintenance Planning Data Document, D6-38278, SSIs related to the area of the SSI. CPCP: Corrosion Prevention and Control Program, found in Section 10 of the MPD
(D6-38278), SSIs related to the area of the SSI.
OTHER: Not used.
[4] Access Manhours - This section provides estimates of the total manhours and elapsed times required for access, if applicable, for each of the inspection options.
[5] DTR Check Form Number and description of the general boundaries of structure affected by an inspection option. Unless specified, applicability of the inspection instructions are the same as the DTR Check Form.
[6] Describes the specific structural members affected.
[7] Notes whether inspection is internal or external from an access view point (see Section 7.1.4).
[8] Describes direction in which inspection is performed.
[9] If NDT is required, an NDT document reference is included along with the elapsed hours and manhours required for inspection.
7.0 DOCUMENT USAGE D6-82669 Original
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