A-82-048
NTSB Safety Recommendation — Aviation
Recommendation text
THE NTSB RECOMMENDS THAT THE FEDERAL AVIATION ADMINISTRATION: REVISE AD 68-04-04 PERTAINING TO THE BRANTLY B2 MODEL HELICOPTER (1) TO EMPHASIZE THAT THE TAIL ROTOR BEARING SET MUST BE REMOVED FROM THE ROTOR BLADE SPAR'S INNER DIAMETER AND THAT BOTH EXTERIOR AND INTERIOR SURFACES OF THE BLADE MUST BE CLEANED THOROUGHLY BEFORE THE DYE PENETRANT INSPECTION IS PERFORMED; AND (2) TO REQUIRE THAT THE INSPECTION AREA OF THE BLADE'S EXTERIOR SURFACE BE LEFT UNPAINTED TO FACILITATE DAILY VISUAL INSPECTION BY PILOTS AND MAINTENANCE PERSONNEL.
In plain language (FlightFinder summary)
The Federal Aviation Administration is asked to revise AD 68-04-04 for the Brantly B2 helicopter to clarify that the tail rotor bearing set must be removed and both the interior and exterior blade surfaces thoroughly cleaned before a dye penetrant inspection. The revision should also require that the blade’s exterior inspection area remain unpainted to allow daily visual checks by pilots and maintenance staff.
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 | May 17, 1983 |
| NTSB number | CHI81FA064 |
| Addressees | FAA |
External links
NTSB safety recommendations are advisory; addressees are not legally required to adopt them. Source: NTSB CAROL (public domain).