47-43-05: Elevator Spar Web Reinforcement
FAA order 47-43-05 is an airworthiness directive. The FAA's subject line: Elevator Spar Web Reinforcement. It names Cessna 120, Cessna 140: about 2,499 aircraft on the U.S. register today across them, though an order usually covers particular versions or serial numbers rather than every one. System: flight controls.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- Cessna Aircraft Company
- Models
- 120, 140
- On this site
- Cessna 120 660 registered
Cessna 140 1,839 registered
Dates and paperwork
- 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 (1,058 characters)
47-43-05 CESSNA: (Was Service Note 3 of AD-768-5.) Applies to 120 and 140 Aircraft Serial Numbers 8001 to 13780, Inclusive.
Inspection required upon each 100 hours of operation until reinforcing channels are installed at all hinge fittings.
Inspect for fatigue cracks in the elevator spar web at the hinges. These cracks start either at the rivets or at an edge of the fitting and progress around the fitting until the elevator breaks loose from the hinge fitting. If cracks less than 1/2 inch in length are found a reinforcing channel, Cessna P/N 0434151 at the outboard hinge or 0434152 at the inboard hinge, should be installed on the aft side of the spar with the flanges riveted between the spar flanges and the skin with two AN 455AD3 rivets per flange. Four AN 442AD4 rivets should be used to attach each fitting to the spar web and reinforcing channel. If any cracks are longer than 1/2 inch the spar should be replaced and the reinforcing channels added.
(Cessna Service Letter No. 46 dated July 31, 1947, covers this same subject.)
Related safety bulletins advice on the same designs, not orders
2015-04-15CE-15-13 · FUSELAGE Seat Belt Mounting Bracket
2010-07-30CE-10-40R1 · Aircraft Fuel System; water contamination of fuel tank systems on Cessna single engine airplanes
2009-07-24CE-09-42 · Lights - Landing Light, Beacon Light and Taxi Light Switch Applications
2006-05-24CE-06-46 ·
2005-08-09CE-05-80 ·
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 6, 2026. Connections as data: /graph/directive/47-43-05.json · aircraft systems.