A-86-028
NTSB Safety Recommendation — Aviation
Recommendation text
THE NTSB RECOMMENDS THAT THE FEDERAL AVIATION ADMINISTRATION: ISSUE A TELEGRAPHIC AIRWORTHINESS DIRECTIVE AND AMEND THE AIRWORTHINESS DIRECTIVE PROPOSED IN THE NOTICE OF PROPOSED RULEMAKING PUBLISHED AT 51 FR 37, DOCKET N0. 85-ANE-46, TO REQUIRE THAT THE ONE-TIME, ON-WING EDDY CURRENT INSPECTION SPECIFIED IN THE PROPOSED AIRWORTHINESS DIRECTIVE BE REPEATED AT 1,000-CYCLE INTERVALS UNTIL STAGE 7-8, 8-9, AND 9-10 REMOVABLE SLEEVE SPACERS BETWEEN THE HIGH-PRESSURE COMPRESSOR ARE REPLACED WITH INTEGRAL SLEEVE SPACES. (Supersedes Safety Recommendation A-85-120)
In plain language (FlightFinder summary)
The Federal Aviation Administration is asked to issue a telegraphic airworthiness directive and amend a proposed directive to require that the one-time, on-wing eddy current inspection specified in the proposal be repeated every 1,000 cycles until stage 7-8, 8-9, and 9-10 removable sleeve spacers between the high-pressure compressor are replaced with integral sleeve spacers.
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 | Feb 18, 1987 |
| NTSB number | MIA86IA072 |
| Addressees | FAA |
External links
NTSB safety recommendations are advisory; addressees are not legally required to adopt them. Source: NTSB CAROL (public domain).