Powerplant Hazard Assessment

FAR 23.2410 — Powerplant Hazard Assessment

FAR 23.2410 requires applicants to assess powerplant failure hazards to ensure safe flight, prevent serious injury, and avoid immediate crew action.

In Plain English

FAR 23.2410 is a certification rule that applies to airplane manufacturers (applicants) when designing Part 23 airplanes. It requires a thorough hazard assessment of each powerplant — both on its own and in relation to other airplane systems and installations.

The goal is to prove that if any powerplant system, component, or accessory has a likely failure, the resulting hazard will not:

Prevent continued safe flight and landing — and if safe flight and landing can't be ensured, the hazard must at least be minimized.
Cause serious injury that could otherwise be avoided.
Require immediate action by any crewmember to keep any remaining powerplant system operating.

Why it matters operationally: this rule is the reason your airplane's engine installation is designed so that a single failure (like a broken accessory or a fuel line issue) doesn't cascade into something catastrophic. As a pilot, you benefit from a design that buys you time to troubleshoot rather than forcing instant reactions to keep the airplane flying.

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Regulation Text

14 CFR § 23.2410

§ 23.2410 Powerplant installation hazard assessment. The applicant must assess each powerplant separately and in relation to other airplane systems and installations to show that any hazard resulting from the likely failure of any powerplant system, component, or accessory will not— (a) Prevent continued safe flight and landing or, if continued safe flight and landing cannot be ensured, the hazard has been minimized; (b) Cause serious injury that may be avoided; and (c) Require immediate action by any crewmember for continued operation of any remaining powerplant system.

Read the reg? Now prove it

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Oral Exam Questions a DPE Might Ask

Q1What does FAR 23.2410 require manufacturers to assess about an airplane's powerplant?

Per FAR 23.2410, the applicant must assess each powerplant separately and in relation to other airplane systems to show that any hazard from a likely failure of any powerplant system, component, or accessory won't compromise safety.

Q2Under FAR 23.2410, what three outcomes must a likely powerplant failure NOT cause?

FAR 23.2410 states the hazard must not prevent continued safe flight and landing (or must be minimized if it can't be ensured), must not cause avoidable serious injury, and must not require immediate crewmember action to keep any remaining powerplant system operating.

Q3Why does FAR 23.2410 prohibit a design that requires immediate crew action after a powerplant failure?

FAR 23.2410 requires that no powerplant failure force a crewmember to take immediate action to keep remaining powerplant systems running, ensuring pilots have time to assess and respond rather than react instantly to prevent further failure.

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