A-82-054
NTSB Safety Recommendation — Aviation
Recommendation text
IN VIEW OF THE POTENTIALLY CATASTROHPIC RESULTS OF A PROPELLER BLADE FAILURE, THE NTSB RECOMMENDS THAT THE FEDERAL AVIATION ADMINISTRATION: REVIEW THE DEICING BOOT RESISTANCE TESTING PROCEDURES SPECIFIED IN THE RATIER-FIGEAC MAINTENANCE MANUAL FOR MODEL FH 146 PROPELLERS TO DETERMINE THE ADEQUACY OF THE TESTING PROCEDURES TO DETECT FAULTS IN THE DEICER BOOTS WHICH COULD CAUSE LOCALIZED OVERHEATING. IF THE TESTING PROCEDURES ARE NOT ADEQUATE, DEVELOP IN CONJUNCTION WITH THE MANUFACTURER IMPROVED PROCEDURES THAT WILL ENSURE DETECTION OF FAULTS IN THE DEICER BOOTS.
In plain language (FlightFinder summary)
The National Transportation Safety Board (NTSB) asks the Federal Aviation Administration (FAA) to review deicer boot resistance testing procedures in the Ratier-Figeac maintenance manual for Model FH 146 propellers, to ensure they can detect faults that might cause localized overheating and lead to catastrophic propeller blade failure. If the current procedures are inadequate, the FAA should work with the manufacturer to develop improved ones.
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 | Apr 23, 1985 |
| NTSB number | NYC82IA051 |
| Addressees | FAA |
External links
NTSB safety recommendations are advisory; addressees are not legally required to adopt them. Source: NTSB CAROL (public domain).