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85-17-07: Wing Rear Spar

FAA order 85-17-07 is an airworthiness directive in force since September 30, 1985. The FAA's subject line: Wing Rear Spar. It names Cessna 207 Skywagon 207, Cessna T207, Cessna TU206, Cessna U206 Stationair: about 1,322 aircraft on the U.S. register today across them, though an order usually covers particular versions or serial numbers rather than every one. System: airframe structure.

What it applies to as the FAA lists it

Kind of product
Aircraft
Makes
Cessna Aircraft Company
Models
207, 207A, T207, T207A, TU206F, TU206G, U206F, U206G
On this site
Cessna 207 Skywagon 207 115 registered
Cessna T207 65 registered
Cessna TU206 344 registered
Cessna U206 Stationair 798 registered

Dates and paperwork

In force since
September 30, 1985
Docket
Unknown
Status
Current
The FAA's document
Read the order on the FAA's site

The order itself the regulatory text, as published

Show the full text (1,508 characters)
85-17-07 CESSNA: Amendment 39-5125. Applies to the following Cessna airplanes certificated in any category: MODEL SERIAL NUMBER U206F/TU206F S/N U20601071 thru U20603521 U206G/TU206G S/N U20603522 thru U20604649 207/T207 S/N 20700001 thru 20700315 207A/T207A S/N 20700363 thru 20700767 Compliance: Required within the next 100 hours time-in-service after the effective date of this AD unless already accomplished. To prevent a possible failure in the wing rear spar on airplanes that have had the full spar or inboard end of the spar replaced, accomplish the following: (a) Visually inspect the airplane in accordance with Cessna Single Engine Service Bulletin SEB85-9 dated May 3, 1985. If the P/N 1222111-1 doubler is missing, prior to further flight repair the spar in accordance with SEB85-9. (b) Airplanes may be flown in accordance with FAR 21.197 to a location where this AD may be accomplished. (c) An equivalent method of compliance with this AD may be used if approved by Manager, Wichita Aircraft Certification Office, Federal Aviation Administration, 1801 Airport Road, Room 100, Wichita, Kansas 67209; Telephone (316) 946-4400. All persons affected by this directive may obtain copies of the document referred to herein upon request to Cessna Aircraft Company, Post Office Box 1521, Wichita, Kansas 67201 or FAA, Office of the Regional Counsel, Room 1558, 601 East 12th Street, Kansas City, Missouri 64106. This amendment becomes effective on September 30, 1985.

Related safety bulletins advice on the same designs, not orders

2025-07-282025-07 · Reciprocating Engine Supercharger
2021-08-26AIR-21-16 · FLIGHT COMPARTMENT EQUIPMENT, Cessna Seat Back Attachment Bolt Inspection
2018-11-21SW-18-31 · NAVIGATION, ATTITUDE, AND DIRECTION DATA SYSTEM
2012-08-09CE-12-41 · Flight Controls Loose Glide Screw
2012-01-25CE-12-14 · Three Alternative Methods of Compliance for AD 2011-10-09

Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of November 2, 2026. Connections as data: /graph/directive/85-17-07.json · aircraft systems.