A-91-124
NTSB Safety Recommendation — Aviation
Recommendation text
THE NTSB RECOMMENDS THAT THE FEDERAL AVIATION ADMINISTRATION: REQUIRE IN AIR CARRIER OPERATIONS MANUALS AND APPROPRIATE AIRPLANE FLIGHT MANUALS THAT FLIGHTCREWS OF DC-9 SERIES 10 AIRPLANES PERFORM A VISUAL AND TACTILE INSPECTION OF THE WING LEADING EDGE AND UPPER SURFACE USING NECESSARY EQUIPMENT PRIOR TO DEPARTURE WHENEVER TEMPERATURES BELOW 5 DEGREES C AND VISIBLE MOISTURE EXIST OR WHENEVER THE AIRPLANE RECENTLY ENCOUNTERED ICING CONDITIONS. (Supersedes Safety Recommendation A-88-136)
In plain language (FlightFinder summary)
The Federal Aviation Administration is asked to mandate that, for DC-9 series 10 airplanes, flight crews perform a visual and tactile inspection of the wing leading edge and upper surface (using necessary equipment) before departure when temperatures are below 5°C with visible moisture, or if the aircraft recently encountered icing conditions. This requirement must be added to air carrier operations manuals and appropriate airplane flight manuals.
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 | Jun 25, 1992 |
| NTSB number | DCA91MA021 |
| Addressees | FAA |
External links
NTSB safety recommendations are advisory; addressees are not legally required to adopt them. Source: NTSB CAROL (public domain).