RELIABILITY PROGRAM
Reliability & Defect Tracking
Fleet-wide defect trending and airframe location mapping
+ LOG DEFECT
4
OPEN DEFECTS
1
CRITICAL
2
REPEAT DEFECTS
three or more times
1
DEFERRED (MEL)
DEFECTS
one is an event, three is a process problem
REFAIRCRAFTATADESCRIPTIONSEVERITYTIMESSTATUS
DEF-5504N118GCATA 33Cabin lighting flicker, row 12MINOR2CLOSED
DEF-5502N305NKATA 21Pack 2 overheat warningMINOR1DEFERRED (MEL)
DEF-5501N412GCATA 32NLG retraction slowMAJOR3OPEN
DEF-5505N221NKATA 27Aileron trim driftMAJOR1OPEN
DEF-5503N778MCATA 49APU fails to startCRITICAL4OPEN
ONE DEFECT IS AN EVENT, THREE IS A DESIGN
The column that earns its place here is how many times the same defect has now been reported. A single occurrence is a thing that happened and was fixed. The same fault a third time is not bad luck: it is a component, a procedure or a design that is going to keep doing this, and continuing to close it as a routine repair is how an operator loses dispatch reliability without anyone ever seeing a bad day.