A-86-051
NTSB Safety Recommendation — Aviation
Recommendation text
THE NTSB RECOMMENDS THAT THE FEDERAL AVIATION ADMINISTRATION: ISSUE AN AIRWORTHINESS DIRECTIVE TO REQUIRE IN A SPECIFIED NUMBER OF FLIGHT CYCLES THE REPLACEMENT OF OR THE INSPECTION AND REPAIR, IF NECESSARY, OF THE SEALED NEEDLE BEARINGS IN THE DOWNLOCK OUTER LINK OF THE SIDE STRUT UPPER SEGMENT OF THE MAIN LANDING GEAR ASSEMBLIES ON BOEING 727 AIRPLANES TO PREVENT SEIZURE OF THESE BEARINGS FROM CORROSION.
In plain language (FlightFinder summary)
The FAA is asked to issue an airworthiness directive requiring, within a specified number of flight cycles, the replacement or inspection and repair (if needed) of sealed needle bearings in the downlock outer link of the main landing gear side strut upper segment on Boeing 727 airplanes. This action aims to prevent bearing seizure caused by corrosion.
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 20, 1987 |
| NTSB number | DCA86AA014 |
| Addressees | FAA |
External links
NTSB safety recommendations are advisory; addressees are not legally required to adopt them. Source: NTSB CAROL (public domain).