70-18-05: Landing Gear Torque Link Bolts
FAA order 70-18-05 is an airworthiness directive in force since September 7, 1970. The FAA's subject line: Landing Gear Torque Link Bolts. It names Piper PA-28 Cherokee, Warrior, Archer and Arrow, Piper PA-32 Cherokee Six, Lance and Saratoga: about 22,550 aircraft on the U.S. register today across them, though an order usually covers particular versions or serial numbers rather than every one. System: landing gear.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- Piper Aircraft Inc.
- Models
- PA-28-140, PA-28-150, PA-28-160, PA-28-180, PA-28-235, PA-32-260, PA-32-300
- On this site
- Piper PA-28 Cherokee, Warrior, Archer and Arrow 18,633 registered
Piper PA-32 Cherokee Six, Lance and Saratoga 3,917 registered
Dates and paperwork
- In force since
- September 7, 1970
- Published
- September 5, 1970 (signed August 27, 1970)
- 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 (1,623 characters)
70-18-05 PIPER: Amendment 39-1076. Applies to the following models: PA-28-140, /- 150, /-160, /-180, /-235, and PA-32-260, /-300. The following are affected serial numbers: PA- 28-140, 28-20001 through 28-22354; PA-28-150, /-160, /-180, 28-1 through 28-3782; PA-28-235, 28-10001 through 28-10806; PA-32-260, 32-1 through 32-853; PA-32-300, 32-40001 through 32-40057.
Compliance required within the next 50 hours' time in service after the effective date of this AD, unless already accomplished.
To preclude the possibility of failure of the main landing gear torque link bolts accomplish the following:
The bolt and lock nut attaching the upper torque link to the main landing gear housing assembly must be replaced with an AN5-23 bolt, AN310-C5 nut, and AN381-2-8 cotter pin. The bolt and lock nut attaching the lower torque link to the main landing gear housing assembly must be replaced with an AN5-22 bolt, AN310-C5 nut, and AN381-2-8 cotter pin. The bolt or grease boltand lock nut attaching the torque links at the scissor joint must be replaced with a grease bolt, Piper part number 65788-00, (hole in threaded end of bolt for cotter pin safety), AN944-101 lubricator fitting, AN 310-C5 nut, AN381-2-8 cotter pin, and appropriate washers. Piper Kit 757-123 contains the necessary hardware and instructions to accomplish this modification. Equivalent replacement parts approved by the Chief, Engineering and Manufacturing Branch, FAA Southern Region, may be used.
Piper Service Bulletin No. 248 dated 12 May 1967 pertains to this same subject.
This amendment becomes effective 7 September 1970.
Related safety bulletins advice on the same designs, not orders
2022-10-192022-20 · Wing Spar
2021-06-29AIR-21-10 · Wing, Attach Fittings (JASC 5740)
2021-03-30AIR-21-07 · WING SPAR, Verification of Correct Washers used with Wing Spar Attach Bolts
2018-11-21SW-18-31 · NAVIGATION, ATTITUDE, AND DIRECTION DATA SYSTEM
2018-08-30CE-18-25 · Powerplant; Air Intake
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 October 7, 2026. Connections as data: /graph/directive/70-18-05.json · aircraft systems.