Example1: Maintenance object: Aircraft

Part #

Mfr. Part #

Mfr. #

Aircraft Model #

Aircraft Reg #

Effectivity Status

 

Allowed by system

Reason

P1

 

 

A-320

 

Effective

Yes

Effectivity definition unique

 

MP1

MF1

A-320

 

Effective

No

MP1 & MF1 represent P1 and results in duplication of effectivity definition

 

MP1

MF1

A-320

 

Not Effective

Yes

Effectivity definition changed, yet remains unique

P1

 

 

A-747

AC100

Effective

Yes

Effectivity definition unique

 

MP1

MF1

 

AC100

Effective

No

MP1 & MF1 represent P1 and results in duplication of effectivity definition

Example2: Part

Part #

Mfr. Part #

Mfr. #

NHA Part #

Effectivity Status

 

Allowed by system

Reason

P1

 

 

NHA P1

Not Effective

Yes

Effectivity definition unique

 

MP1

MF1

NHA  P1

Effective

Yes

MP1 & MF1 represent P1 yet effectivity definition unique.

 

MP1

MF1

NHA  P1

Conditionally Effective

Yes

Effectivity definition changed, yet remains unique

P1

 

 

NHA  P1

Effective

Yes

Effectivity definition changed, yet remains unique

Example3: Part

Part #

Mfr. Part #

Mfr. #

NHA Part #

NHA Mfr. Part #

NHA Part Mfr. #

NHA Serial #

Effectivity Status

 

Allowed by system

Reason

P1

 

 

NHA P1

 

 

 

Effective

Yes

Effectivity definition unique

 

MP1

MF1

 

NHA MP1

NHA MF1

S12

Not Effective

Yes

Effectivity definition unique

 

MP1

MF1

 

NHA MP1

NHA MF1

 

Effective

Yes

MP1 & MF1 represent P1; NHA MP1 & NHA MF1 are the same as NHA P1. This results in duplication of effectivity definition

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