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AA.VII.A.K3FAA-S-ACS-11A · Nov 2023Knowledge

Causes of inflight fire or smoke.

ACS element text (the applicant demonstrates understanding of)

Causes of inflight fire or smoke.

Bottom line

An in-flight engine compartment fire is usually caused by a failure that allows a flammable substance, such as fuel, oil, or hydraulic fluid, to come in contact with a hot surface. The initial indication of an electrical fire is usually the distinct odor of burning insulation.

FAA references

  1. AFH ch. 18 (pp. 18-9–18-10) — FAA-H-8083-3C
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