A-84-006
NTSB Safety Recommendation — Aviation
Recommendation text
THE NTSB RECOMMENDS THAT THE FEDERAL AVIATION ADMINISTRATION: CONDUCT AN ENGINEERING ANALYSIS TO DETERMINE WHETHER THE STRESS MARGINS OF ROD END BEARINGS WHICH DO NOT CONFORM TO DESIGN SPECIFICATIONS AND STANDARDS INSTALLED ON CESSNA MODEL 400 SERIES FLAP ACTUATORS, FLAP CONTROL ROD ASSEMBLIES, AND LANDING GEAR DOORS ARE ADEQUATE AND, IF INDICATED, INITIATE ACTION TO REQUIRE REPLACEMENT OF ANY INSERVICE BEARINGS NOT CONFORMING TO MILITARY STANDARD MS-21242 OR MILITARY SPECIFICATION MIL-B-81935.
In plain language (FlightFinder summary)
The Federal Aviation Administration is asked to perform an engineering analysis to determine whether the stress margins of rod end bearings that do not meet design specifications on Cessna Model 400 series flap actuators, flap control rod assemblies, and landing gear doors are adequate. If warranted, the FAA must require replacement of any in-service bearings that do not conform to Military Standard MS-21242 or Military Specification MIL-B-81935.
This plain-language summary is written by FlightFinder to explain the recommendation above. It is not the official wording — the verbatim NTSB text is quoted above.
Details
| Status | Closed - Acceptable Action |
|---|---|
| Mode | Aviation |
| Closed | Jul 31, 1984 |
| NTSB number | MIA83LA139 |
| Addressees | FAA |
External links
NTSB safety recommendations are advisory; addressees are not legally required to adopt them. Source: NTSB CAROL (public domain).