---
kind: "section"
citation: "14 C.F.R. § 29.991"
title: "14"
number: "29.991"
heading: "Fuel pumps."
url: "https://uscodex.org/cfr/14/29.991"
---

# §29.991. Fuel pumps.

- (a) Compliance with [§ 29.955](/cfr/14/29.955.md) must not be jeopardized by failure of—
  - (1) Any one pump except pumps that are approved and installed as parts of a type certificated engine; or
  - (2) **Any component required for pump operation except the engine served by that pump.**
- (b) **The following fuel pump installation requirements apply—**
  - (1) **When necessary to maintain the proper fuel pressure—**
    - (i) A connection must be provided to transmit the carburetor air intake static pressure to the proper fuel pump relief valve connection; and
    - (ii) The gauge balance lines must be independently connected to the carburetor inlet pressure to avoid incorrect fuel pressure readings.
  - (2) The installation of fuel pumps having seals or diaphragms that may leak must have means for draining leaking fuel.
  - (3) Each drain line must discharge where it will not create a fire hazard.

## Notes

### Amendments

[Amdt. 29-26, 53 FR 34217, Sept. 2, 1988]

### Authority

Authority: 49 U.S.C. 106(f), 106(g), 40113, 44701-44702, 44704.

### Source

Source: Docket No. 5084, 29 FR 16150, Dec. 3, 1964, unless otherwise noted.

### Amendments

[Amdt. 29-26, 53 FR 34217, Sept. 2, 1988]