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AA.II.B.K1FAA-S-ACS-11A · Nov 2023Knowledge

Normal and abnormal powerplant start procedures and limitations, including the use of a...

ACS element text (the applicant demonstrates understanding of)

Normal and abnormal powerplant start procedures and limitations, including the use of an auxiliary power unit (APU) or external power source, if applicable.

Bottom line

Electrical power for starting is usually supplied by an onboard battery, but can also be supplied by external power through an external power receptacle.

FAA references

  1. PHAK ch. 7 (p. 7-18) — FAA-H-8083-25C (2023)
  2. PHAK ch. 7 (p. 7-30) — FAA-H-8083-25C (2023)
  3. PHAK ch. 7 (p. 7-11) — FAA-H-8083-25C (2023)
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