FAA Standard Passenger Weights: Baggage, Exceptions, and Penalties

Under FAA Advisory Circular 120-27F, airlines operating under 14 CFR Parts 91K, 121, 125, and 135 don’t weigh every passenger at the gate. They use FAA standard passenger weights, which are statistical averages built from the CDC’s National Health and Nutrition Examination Survey (NHANES). The most recent NHANES figures put average adult body weight at 199 pounds for men and about 172 pounds for women, to which each operator adds a clothing allowance of 5 pounds in summer or 10 pounds in winter before submitting the finished table for FAA approval.¹²

How the Standard Weight Is Built

There is no single national number every carrier must use. AC 120-27F provides the framework in Table 3-1, and each operator plugs in the latest CDC body-weight data, adds the clothing allowance, and submits the result for FAA approval. The table separates four categories: a standard (combined) adult, male adult, female adult, and child aged two through twelve. Children get their own line because folding them into the adult figure would distort the total on routes with unusually high or low numbers of young passengers.¹

One detail matters for anyone reading the table: the passenger figure is body plus clothing only. It does not include carry-on bags or personal items. Those are counted separately.¹

Summer, Winter, and Gender Mix

Winter clothing weighs more than summer clothing, so the AC sets two clothing allowances: 5 pounds from May 1 through October 31, and 10 pounds from November 1 through April 30. Operators can propose different date ranges if their route network justifies it. Using current CDC data, an adult male’s approved standard weight lands near 204 pounds in summer and 209 in winter.¹

Gender mix works the same way. The default is a 50/50 male-to-female split unless a specific route consistently runs differently. A commuter flight serving a military base that runs 80 percent male has to weight its calculation toward the higher male average. Crew members and their bags are counted using either separate standard weights or actual weights, depending on the operator’s approved program.

How Baggage Is Counted

Baggage is not covered by the passenger figure and is not covered by any FAA-published default. Operators either conduct their own baggage surveys to establish averages or weigh every bag individually. There is no fallback number.¹

The AC breaks baggage into distinct categories, each of which must be surveyed separately if the operator wants to use averages: checked bags, carry-on bags, personal items, and planeside-loaded bags (gate-checked items on regional jets, for example). Weight thresholds change the treatment:

A bag between 50 and 100 pounds is a “heavy bag” and must be handled with a surveyed heavy-bag average or its actual weight.
Anything 100 pounds or more is cargo, not baggage, and must always be weighed individually.¹

When Standard Weights Are Not Allowed

Standard weights only work when the passenger count is large enough that individual variation averages out. On a small aircraft, one heavy passenger can throw off the load. The FAA draws a hard line: any aircraft with fewer than five passenger seats must use actual passenger and baggage weights, with no exceptions.¹

Beyond that seat threshold, three aircraft categories can never use standard weights regardless of passenger count:

Single-engine piston aircraft.
Multi-engine piston aircraft.
Single-engine turbine aircraft, including turboprops such as the Cessna Caravan.

Actual weights on these aircraft come from a scale or from asking each passenger to state their weight. When the stated-weight method is used, the operator adds at least 10 pounds to account for clothing, more in winter or on routes where heavier clothing is common.¹

Department of Defense charters are another carve-out. DOD requires actual passenger and cargo weights on all military charter missions, regardless of aircraft size.¹

Mobility Devices

Wheelchairs, powered scooters, and similar equipment are always weighed for real. InFO 24011 lays out three acceptable methods: put the device on a scale, read the weight from its data plate, or look up the manufacturer’s published weight if no legible data plate is on the device.³ Powered wheelchairs with lithium batteries can run 200 to 400 pounds, so the number matters for cargo-hold loading and center of gravity.

Nonstandard Groups

Even on large aircraft that normally use standard weights, groups whose members are notably heavier or lighter than the general public are treated as “nonstandard weight groups.” Sports teams and military units are the standing examples. For these passengers, operators use actual weights, or they use a surveyed average built specifically for that type of group. Roster weights published by a team count as actual weights.¹

When a nonstandard group takes up only part of the cabin, the operator applies group-specific or actual weights to those seats and standard weights to the rest. The load manifest has to identify the group by name and record how many passengers belong to it.

How Often Standard Weights Must Be Rechecked

The FAA recommends that operators review the entire weight and balance program, including any passenger or baggage surveys, every 36 calendar months. A review should also be triggered by any change that could shift the assumptions behind the numbers, such as a new carry-on policy or a route change that undermines the current seasonal date ranges.¹

The statistical bar for survey samples is fixed at a 95 percent confidence level. Adult passenger surveys require a minimum of 2,700 people at 1 percent tolerable error. Child surveys and each baggage category (checked, carry-on and personal items, heavy, and planeside-loaded) require 1,400 at 2 percent tolerable error. Operators may derive alternative minimums using a formula in the AC, but not below what 95 percent confidence requires.¹

Penalties for Getting Weight Wrong

Weight and balance violations carry real money. Under 49 U.S.C. § 46301, an operator that violates an FAA safety requirement faces a civil penalty of up to $75,000 per violation, and each day a violation continues counts as a separate offense. That statutory base is periodically adjusted for inflation.⁴

Certificate action often hits harder than the fine. Under 49 U.S.C. § 44709, the FAA can amend, suspend, or revoke any safety certificate when the Administrator determines safety requires it.⁵ FAA enforcement guidance treats an overweight takeoff as a violation warranting punitive sanction, and a moderately culpable overweight takeoff can bring a 60- to 120-day certificate suspension for the pilot involved. Where the conduct shows a fundamental lack of judgment or repeated disregard for weight limits, the FAA can revoke the certificate outright.⁶

1
Federal Aviation Administration. AC 120-27F – Aircraft Weight and Balance Control
2
Centers for Disease Control and Prevention. Body Measurements – FastStats
3
Federal Aviation Administration. Methods for Determining Weights of Mobility Devices Carried on Aircraft
4
Office of the Law Revision Counsel. 49 U.S. Code 46301 – Civil Penalties
5
Office of the Law Revision Counsel. 49 USC 44709 – Amendments, Modifications, Suspensions, and Revocations of Certificates
6
Federal Aviation Administration. FAA Compliance and Enforcement Program