A-80-026
NTSB Safety Recommendation — Aviation
Recommendation text
THE NTSB RECOMMENDS THAT THE FEDERAL AVIATION ADMINISTRATION: ISSUE AN AIRWORTHINESS DIRECTIVE REQUIRING AN IMMEDIATE INSPECTION OF ALL LIFT STRUT FORKS ON THOSE PIPER AIRCRAFT ENUMERATED IN AIRWORTHINESS DIRECTIVE 58-10-02 FOR INDICATIONS OF CRACKING. INSTITUTE FORK REPLACEMENT/INSPECTION INTERVALS MORE STRINGENT FOR FORKS WITH CUT-THREADS THAN THOSE SPECIFIED IN AIRWORTHINESS DIRECTIVE 58-10-02. LIMIT ACCEPTABLE REPLACEMENT FORKS TO THOSE WITH ROLLED-THREADS. (URGENT)
In plain language (FlightFinder summary)
The NTSB asks the FAA to issue an airworthiness directive mandating immediate inspection of lift strut forks on specific Piper aircraft listed in AD 58-10-02 for signs of cracking. Additionally, the FAA should establish stricter replacement and inspection intervals for forks with cut threads compared to those already required, and allow only rolled-thread forks as replacements.
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 | Jul 28, 1980 |
| NTSB number | CHI80FA025 |
| Addressees | FAA |
External links
NTSB safety recommendations are advisory; addressees are not legally required to adopt them. Source: NTSB CAROL (public domain).