A-92-102
NTSB Safety Recommendation — Aviation
Recommendation text
THE NTSB RECOMMENDS THAT THE FEDERAL AVIATION ADMINISTRATION: ISSUE AN AIRWORTHINESS DIRECTIVE APPLICABLE TO PIPER PA-31 SERIES AIRPLANES REQUIRING AT THE NEXT ANNUAL OR 100-HOUR INSPECTION, WHICHEVER OCCURS FIRST: (1) AN INSPECTION OF ENGINE COWL-NACELLE ASSEMBLIES TO ENSURE THAT ALL FASTENERS (LONG/SHORT) AND RECEPTACLES ARE PRESENT AND CORRECTLY INSTALLED, THAT ALL FASTENER WASHERS/COLLARS ARE INSTALLED, AND THAT THE LOWER COWL EYEBOLTS ARE ADJUSTED PROPERLY TO MINIMIZE VIBRATION OF THE COWL; AND (2) APPLICATION OF PROMINENT DECALS AND/OR PAINT STRIPES ON THE COWLS TO INDICATE THE OPEN AND LOCKED POSITIONS OF THE PRIMARY INBOARD AND OUTBOARD EYEBOLT FASTENERS.
In plain language (FlightFinder summary)
The Federal Aviation Administration is asked to issue an airworthiness directive for Piper PA-31 series airplanes. The directive would require, at the next annual or 100-hour inspection, inspection of engine cowl-nacelle assemblies to ensure all fasteners and receptacles are present and correctly installed, washers/collars are installed, and lower cowl eyebolts are properly adjusted to minimize vibration. It would also require application of decals or paint stripes on the cowls indicating the open and locked positions of the primary inboard and outboard eyebolt fasteners.
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 - Unacceptable Action |
|---|---|
| Mode | Aviation |
| Closed | Jul 20, 1994 |
| NTSB number | DEN91LA066 |
| Addressees | FAA |
External links
NTSB safety recommendations are advisory; addressees are not legally required to adopt them. Source: NTSB CAROL (public domain).