FAA Aviation Mechanic General (AMG)Regulations, Records and Human FactorsEasy
Two technicians are each assigned to service opposite wings of an aircraft but never confer on the work being done. As a result, both technicians assume the other checked the flap rigging, and it is never verified. Which Dirty Dozen factor caused this gap?
- ANorms
- BLack of Teamwork
- CLack of Communication
- DComplacency
Show answer & explanationAnswer & explanation
Correct answer: B. Lack of Teamwork
Lack of Teamwork occurs when individuals fail to work together and coordinate responsibilities on a shared task, causing gaps like an item both assumed the other had completed.
Why the other options are wrong
- A. Norms are unofficial habitual shortcuts, not a one-time coordination failure.
- C. Lack of Communication is about failing to transfer specific information (e.g., a shift-change note), whereas here the problem is failure to coordinate roles at all.
- D. Complacency involves false confidence from repeated exposure, not a coordination gap.
Lack of Teamwork (Dirty Dozen)
A human factor describing failure to work cooperatively and coordinate tasks/responsibilities with others on a shared job.
- Different from Lack of Communication, which is about information transfer
- Leads to duplicated work or, as here, unassigned/unverified tasks
- Mitigated by clearly defined roles and task assignment briefings
Memory trick: 'Two hands, no coordination' — both assume, neither confirms.