---
kind: "section"
citation: "14 C.F.R. § 135.387"
title: "14"
number: "135.387"
heading: "Large transport category airplanes: Turbine engine powered: Landing limitations: Alternate airports."
url: "https://uscodex.org/cfr/14/135.387"
---

# §135.387. Large transport category airplanes: Turbine engine powered: Landing limitations: Alternate airports.

- (a) Except as provided in [paragraph (b)](#b) of this section, no person may select an airport as an alternate airport for a turbine engine powered large transport category airplane unless (based on the assumptions in [§ 135.385(b)](/cfr/14/135.385.md?p=b)) that airplane, at the weight expected at the time of arrival, can be brought to a full stop landing within 70 percent of the effective length of the runway for turbo-propeller-powered airplanes and 60 percent of the effective length of the runway for turbojet airplanes, from a point 50 feet above the intersection of the obstruction clearance plane and the runway.
- (b) Eligible on-demand operators may select an airport as an alternate airport for a turbine engine powered large transport category airplane if (based on the assumptions in [§ 135.385(f)](/cfr/14/135.385.md?p=f)) that airplane, at the weight expected at the time of arrival, can be brought to a full stop landing within 80 percent of the effective length of the runway from a point 50 feet above the intersection of the obstruction clearance plane and the runway.

## Notes

### Amendments

[Docket FAA-2001-10047, 68 FR 54588, Sept. 17, 2003]

### Authority

Authority: 49 U.S.C. 106(f), 40113, 41706, 44701-44702, 44705, 44709, 44711-44713, 44715-44717, 44722, 44730, 45101-45105; Pub. L. 112-95, 126 Stat. 58 (49 U.S.C. 44730).

### Source

Source: Docket 16097, 43 FR 46783, Oct. 10, 1978, unless otherwise noted.

### Amendments

[Docket FAA-2001-10047, 68 FR 54588, Sept. 17, 2003]