Legal Interpretations
Durocher-JLM Associates 2016
Summary
The Question
Does the 14 CFR 141.38(d) traffic direction indicator requirement apply only to airports that use a non-standard traffic pattern?
Background
JLM Associates, manager of Ellington Airport, a non-towered airport hosting a 14 CFR part 141 pilot school, was told by an FAA inspector to add an indicator because its UNICOM is not operated at night. It believed 14 CFR 141.38(d) applied only to non-standard patterns.
The FAA’s Interpretation
No. The FAA found no issue of legal interpretation: 14 CFR 141.38(d) requires a traffic direction indicator when an airport has no operating control tower and UNICOM advisories are not available, and that requirement does not depend on a non-standard traffic pattern. FAA Order 8900.1 is consistent. The concern that the indicator would confuse pilots was referred to Flight Standards' Airmen Certification and Training Branch.
- Requester
- Durocher
- Organization
- JLM Associates
- Issued
- February 16, 2016
- Subjects
- Definitions · Training Schools & Centers
Regulations Cited
- 14 CFR Part 1
- 14 CFR Part 139
- 14 CFR 141.38
Page 1
U.S. Department
of Transportation
Federal Aviation
· Administra tion
rre· t ·5 2ot6
Lawrence E. Durocher
Airport Manager/Ellington Airport
JLM Associates, LLC
P. O. Box 13
Southwick, MA 01077
Office of the Chief Counsel
Re: Clarification of 14. C.F.R. § 141.38(d)
Dear Mr. Durocher:
800 Independence Ave., S.W.
Washington, D.C. 20591
Thank you for the request for a legal interpretation dated September 2, 2015 and September 24, 2015. We have determined that there is no issue oflegal interpretation. Section 141.38(d) of Title 14 of the Code of Federal Regulations (14 C.F.R.) requires each airport to have a traffic direction indicator when: (1) the airport does not have an operating control tower; and (2) UNICOM advisories are not available. The requirements in§ 141.38(d) are not conditional on whether the airport uses a non-standard traffic pattern. Therefore, if your airport does not have an operating control tower and does not have UNICOM advisories available, your airport must have a traffic direction indicator.
Furthermore, FAA Order 8900.l is consistent with the requirements of§ 141.38(d). FAA Order 8900. l states that the traffic direction indicator, when required by§ 141.38(d), "must show the direction of traffic patterns for all runways regardless of landing or takeoff direction." 1 FAA Order 8900.1, Vol. 2, Ch. 9, § 1 Initial Certification or Renewal of a Part 141 Pilot School (emphasis added).
To the extent you believe a traffic direction indicator is synonymous to a traffic pattern indicator and adding the indicator at an airport with a standard traffic pattern would confuse pilots unfamiliar with the airport, we refer you to the Airmen Certification and Training 1 The guidance you refer to in AC 150-5340-5C applies to equipment funded under Federal grant assistance programs and the certification of airports under part 139. Segmented Circle Airport Marking System, AC 15- 5340-5C (Sept. 14, 2007).
Page 2
Branch in the General Aviation and Commercial Division of the Flight Standards Service for resolution. You may contact the Airmen Certification and Training Branch at (202) 267- 1100.
Sincerely,
cf~~
Lorelei Peter
Acting Assistant Chief Counsel for Regulations
Page 3
September 2, 2015
JLM ASSOCIATES, LLC
P.O. Box 13
Southwick, MA 01077
413-569-3928
Office of tho Chief Counsel
800 I11dopendcnce Ave. SW
Washington, D.C. 20591
Dear Sir/Madam:
As the airport manager of a non-towered, privately owned airport. I was recently informed by an FAA official that a Traffic Pattern Indicator was required to be added to the airport in accordance wifuFAR 141.38 (d) (1), (2). This crunc up as a result of a recent FAA inspection of an FAA approved (141) flight school located attbe airport The aiJPOrt does have UNICOM services during the daytime (7 days/week), however, it is not operated at night, which seems to be the issue.
l pointed out to the Principle Operations Inspector (POI) that this subject had come.up several years ago and it was detennined that FAR 141.38 (d) would only be applicable if the airport used a non-standard trafii.c pattcm.. Guidance for this detennination can be fmmd in AC 150/5340-SC and common sense would dictate that the addition of a Traffic Pattern lndieator at an afrpo1t with a standard traffic pattern would certainly lead to confusion witb pilots unfamiliar with the airport. I also pointed out that there are no other airports in this area (towered and non-towered) that meet this requirement although many have FAA approved schools on site. Api:>arently this is an individual interpretation (by a lone FAA operations inspector) of a somewhat ambiguous regulation that needs an interpretation from yol![._.~ ~The school's 141 certificate approval expires in OctoEer and an answer is -- -oecessary as soon as possible. Thank you for your assistance in this matter.
Lawrence E. Durocher
Airport Manager/EJlington. Airport (7B9)
Page 4
September 24, 2015
Office of the Chief Counsel
800 Independence Ave. SW
Washington, D.C. 20591
Dear Sir/Madam:
JLM ASSOCIATES, LLC
P.O. Box 13
Southwick, MA 01077
413-569-3928
This is a follow up to a recent letter (attached) that I had submitted to your office on September 2. In my request for an interpretation of FAR 141.38 (d), several important points had been left out.
First and foremost, the regulation makes reference to a "Traffic Direction Indicator" . In my letter to your office, I had made reference to a "Traffic Pattem Inclicator" which is typically used to identify a non-standard traffic pattern when tower.or Unicom services are not available. I have since asked the local FSDO for a definition of a "Traffic Direction Indicator" and have received several interpretations ranging from a requirement to add a Traffic Pattern Indicator (to indicate that a left hand pattern is in effect) to the addition of a stand alone segmented circle to indicate that the airport has a left-hand (standard) traffic pattern. The airport maintains a Unicom radio for traffic advisories during normal business hours (9-5) seven days a week. The Principle Operations Inspector has indicated that advisories would be required 24/7 to comply with FAR 141.38 unless a segmented circle is added (there is a lighted windsock atop a building that is very visible to air traffic). I have researched this and cannot find any FAA publication that indicates that a stand alone segmented circle suggests that a left hand pattern is in effect. A segmented circle is used primarily to call the pilots' attention to the Wind Direction Indicator (windsock) as well as provide other runway information (i.e. Landing Direction Indicators/Traffic Paitero Indicators/Right-tum Indicators, etc.). It appears that the tenninology ''Traffic Direction Indicato1·" is an apparent error as there is no FAA definition for this term. It can and apparently has lead to several individual interpretations some of which are contrary to safe operating practices. l believe that the regulation should have read "Traffic Pattern Indicator" which would add a degree of safety when a non-standard pattern is in effect. I am clearly receiving ~ed mterpretations on this issue and need clarification from your office.
Sincer;l~~ .
- d.Cki~Lawrence E. Durocher
Airport Manager/Ellington Airport (7B9)
Page 5
September 2, 20 IS
Qffice of the Chief Counsel
800 lndependet\ce Ave. SW
Washington, D.C. 20591
Dear Sir/Madam :
JLMASSOCIATES, LLC
P.O. Box 13
Southwick, MA 01077
413-569-3928
As the airport manager of a non-towered, privately owned ajrport, I was recently informed by an FAA official that a Traffic Pattern Indicator was required to be added to the ai.rpo1t in acc-0rdance wiih FAR 141.38 (d) ( 1), (2). This came up as a result of a recent FAA inspection of an FAA approved (141) flight school located at the airport. Tbe airport does have UNICOM services during tbe daytime (7 days/week), however, it is not operated at night, which seems to be the issue.
I pointed out to the Principle Operations Inspector (POI) that this subject had come up several years ago and it was determined that FAR 141.38 (d) would only be applicable if the airport used a non,-standard traffic pattern. Guidance for this detel'mination can be found in AC 150/5340-SC and common sense would dictate that the addition of a Traffic Pattern Indicator at an airport with a standard traffic pattern would certainly lend to confusion with pilots wifamiliar with the airport. I also pointed out that there are no other airports in this area (towered and non-towered) that meet this requirement although many have FAA approved schools on site.
Apparently this is an individual interpretation (by a lone .C'AA operations inspector) of a somewhat ambiguous regulation that needs an interpretation from your office. The school's 141 cettificate approval expires in October and an answer is necessary as soou as possible. Tbaok you for yow· A$Sistru1ce in this matter.
Sincerely,
Lawrence E. Durocber
Airport Manager/Ellington Airport (7B9.)
Regulations Referenced
Snapshot retrieved August 6, 2026.