EASA Module 8 case studies
EASA Module 8 · Put your knowledge to work in context.
EASA Module 8 - Human Factors is one of the basic knowledge modules in the EASA Part-66 aircraft maintenance licence syllabus. It is aimed at anyone working toward a Part-66 licence - typically trainee and practising aircraft maintenance engineers - and at certifying staff who need to understand how human performance shapes maintenance safety. The EASA Module 8 case studies are 5 cases and about 3,306 words.
1The 02:40 Torque Setting
At 02:40 on the fourth consecutive 10-hour night shift, a line maintenance technician is replacing a hydraulic return-line union on a narrow-body aircraft. The aircraft is scheduled to depart at 05:30 and the gate is congested.
677 words, about 3 min2The Handover That Wasn't
During a heavy maintenance check, the day shift removes the fuel quantity indicating system connector in the left wing root to gain access to a wiring loom. The technician writes in the shift handover log: "FQIS connector off, do not power." He does not annotate the task card, does not attach a warning tag, and leaves before the incoming shift arrives.
662 words, about 3 min3Two O-Rings, One Digit
An engine shop is working to a tight turnaround. Two O-ring part numbers differ by one digit: 123-45 and 123-54.
612 words, about 3 min4Inspecting in the Dark and the Noise
An inspector is asked to examine the composite wing leading edge of a regional turboprop for lightning-strike damage after a reported strike. The hangar bay has general lighting of about 300 lux; a portable lamp is available but its cable is taped across the floor and the lamp flickers.
666 words, about 3 min5Sign It, We All Do It
A young technician has just completed a flap rigging check. The certifying engineer who supervised the work leaves early for a family emergency and asks the technician to "get the paperwork signed by whoever is around".
689 words, about 3 min