---
kind: "section"
citation: "14 C.F.R. § 121.432"
title: "14"
number: "121.432"
heading: "General."
url: "https://uscodex.org/cfr/14/121.432"
---

# §121.432. General.

- (a) Except in the case of operating experience under [§ 121.434](/cfr/14/121.434.md) and ground training for mentoring required by §§ [121.419](/cfr/14/121.419.md), [121.420](/cfr/14/121.420.md), [121.427](/cfr/14/121.427.md), and [121.429](/cfr/14/121.429.md), as applicable, a pilot who serves as second in command of an operation that requires three or more pilots must be fully qualified to act as pilot in command of that operation.
- (b) No certificate holder may conduct a check or any training in operations under this part, except for the following checks and training required by this part or the certificate holder:
  - (1) **Line checks for pilots.**
  - (2) Flight engineer checks (except for emergency procedures), if the person being checked is qualified and current in accordance with [§ 121.453(a)](/cfr/14/121.453.md?p=a).
  - (3) **Flight attendant training and competence checks.**

## Notes

### Amendments

[Docket 9509, 35 FR 95, Jan. 3, 1970, as amended by Amdt. 121-130, 41 FR 47229, Oct. 28, 1976; Amdt. 121-366, 78 FR 67840, Nov. 12, 2013; Amdt. 121-382, 85 FR 10925, Feb. 25, 2020]

### Authority

Authority: 49 U.S.C. 106(f), 40103, 40113, 40119, 41706, 42301 preceding note added by Pub. L. 112-95, sec. 412, 126 Stat. 89, 44101, 44701-44702, 44705, 44709-44711, 44713, 44716-44717, 44722, 44729, 44732; 46105; Pub. L. 111-216, 124 Stat. 2348 (49 U.S.C. 44701 note); Pub. L. 112-95, 126 Stat. 62 (49 U.S.C. 44732 note); Pub. L. 115-254, 132 Stat. 3186 (49 U.S.C. 44701 note).

### Amendments

[Docket 9509, 35 FR 95, Jan. 3, 1970, as amended by Amdt. 121-130, 41 FR 47229, Oct. 28, 1976; Amdt. 121-366, 78 FR 67840, Nov. 12, 2013; Amdt. 121-382, 85 FR 10925, Feb. 25, 2020]