Home › Part 107 Practice Tests › Maintenance & Preflight Inspection Questions › Question 6
Before flight you notice a lithium battery pack is swollen and its casing has begun to separate. What should you do?
- A.Remove it from service immediately and handle and dispose of it in a safe manner
- B.Compress it back into shape and use it for a short flight
- C.Charge it fully to see whether the swelling goes down
Correct answer
A. Remove it from service immediately and handle and dispose of it in a safe manner
Why
Swelling, damage, or leakage signals internal battery failure and a fire risk. Such a pack must be taken out of service at once and handled and disposed of safely, never flown or charged for further use.
Source: FAA-G-8082-22 Ch. 12 · ACS knowledge area: Maintenance and Preflight Inspection Procedures · From the Maintenance & Preflight Inspection practice bank (MNT-006).