A-82-056
NTSB Safety Recommendation — Aviation
Recommendation text
THE NTSB RECOMMENDS THAT THE FEDERAL AVIATION ADMINISTRATION: ISSUE AN AIRWORTHINESS DIRECTIVE TO REQUIRE A REDESIGN AND MODIFICATION OF ISOPROPYL ALCOHOL WINDSHIELD DEICING SYSTEMS INSTALLED ON DHC-6 AIRCRAFT TO ELIMINATE THE POTENTIAL FOR ALCOHOL LEAKAGE OR, IF PRACTICABLE, TO REQUIRE REPLACEMENT OF THESE SYSTEMS WITH THE ELECTRICALLY HEATED WINDSHIELDS OFFERED BY THE MANUFACTURER AS AN ALTERNATIVE INSTALLATION.
In plain language (FlightFinder summary)
The FAA is asked to issue an airworthiness directive requiring a redesign and modification of isopropyl alcohol windshield deicing systems on DHC-6 aircraft to prevent alcohol leakage, or, if practical, mandate replacement with electrically heated windshields offered by the manufacturer.
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 5, 1983 |
| NTSB number | DCA82AA016 |
| Addressees | FAA |
External links
NTSB safety recommendations are advisory; addressees are not legally required to adopt them. Source: NTSB CAROL (public domain).