Transcription of PROJECT: Simple Flashlight Example - FMEA
1 FAILURE MODE, EFFECTS AND CRITICALITY ANALYSIS. PROJECT: Simple Flashlight Example FAILURE RATE: Failures/Million Hrs. ITEM CRITICALITY NUMBER * (Cr): SHEET: 1. MTBF: Hrs 1: MODULE: Flashlight 2: DATE: 8 Nov 2006. REF DES:1. 3: FUNCTION: Flashlight Part # FL164578-1 4 & Higher: PHASE: Normal Operation RD DESCRIPTION FMI FAILURE RATE / FAILURE MODE LOCAL EFFECTS NEXT HIGHER END EFFECTS COMPENSATING SEV FAIL EFFECT FAILMODE. MILLION HRS RATIO EFFECTS PROVISIONS CLASS PROB. CRIT. # * A1 Flashlight bulb FAAA dim light Flashlight output dim Flashlight output dim 3 FAAB no light no Flashlight output no Flashlight output 2 A2 Flashlight Switch FAAA intermittent Flashlight sometimes Flashlight sometimes will 3 will not turn on not turn on FAAB Stuck closed constant Flashlight constant Flashlight output 1 output FAAC Stuck open no Flashlight output no Flashlight output 2 A3 Flashlight Contact FAAA intermittent Flashlight sometimes Flashlight sometimes will 3 will not turn on not turn on FAAB no contact no Flashlight output no Flashlight output 2 FAAC poor contact Flashlight output dim Flashlight output dim 3 A4 Flashlight Battery FAAA low power Flashlight output dim Flashlight output dim 3 FAAB no power no Flashlight output no Flashlight output 2
