A-87-103
NTSB Safety Recommendation — Aviation
Recommendation text
THE NTSB RECOMMENDS THAT THE FEDERAL AVIATION ADMINISTRATION: ISSUE AN AIRWORTHINESS DIRECTIVE TO REQUIRE THAT ALL MCCAULEY DESIGN NUMBER 1A103 PROPELLERS WITH A SPECIFIED MINIMUM NUMBER OF HOURS BE INSPECTED FOR EVIDENCE OF SANDING SCRATCHES AND CRACKS IN THE RADII BEWTEEN THE FRONT FACE OF THE HUB AND THE FRONT FACE OF THE BLADES; THIS INSPECTION SHOULD BE CONDUCTED WITH THE PAINT REMOVED FROM THE RADII. IN THE EVENT THAT SANDING SCRATCHES OF CRACKS ARE EVIDENT IN THE RADII BETWEEN THE FRONT FACE OF THE PROPELLER HUB AND THE FRONT FACE OF THE PROPELLER BLADES, SPECIFY APPRPROIATE CRITERIA AND PROCEDURES FOR REPAIR OR REMOVAL FROM SERVICE.
In plain language (FlightFinder summary)
The NTSB asks the FAA to issue an airworthiness directive requiring inspection of all McCauley design number 1A103 propellers with a specified minimum number of hours for sanding scratches and cracks in the radii between the front face of the hub and the front face of the blades, with the paint removed. If such damage is found, the directive should specify criteria and procedures for repair or removal from service.
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 | Mar 29, 1990 |
| NTSB number | ATL87LA019 |
| Addressees | FAA |
External links
NTSB safety recommendations are advisory; addressees are not legally required to adopt them. Source: NTSB CAROL (public domain).