A-00-120
NTSB Safety Recommendation — Aviation
Recommendation text
THE NTSB RECOMMENDS THAT THE FAA: ISSUE AN AIRWORTHINESS DIRECTIVE TO MAKE COMPLIANCE WITH EXTRA FLUGZEUGBAU SERVICE BULLETIN 300-2-95 ISSUE C MANDATORY WITH THE EXCEPTION THAT THE VISUAL INSPECTIONS BE REPLACED WITH DYE PENETRANT INSPECTION AND THAT THE INSPECTION AREAS BE EXPANDED TO INCLUDE THE WELDS ASSOCIATED WITH THE AFT END OF THE AFT BRACKETS FOR THE ATTACHMENT ASSEMBLY OF THE HORIZONTAL STABILIZER. FOR ANY CRACK DETECTED IN THE UPPER LONGERON AREA, REQUIRE OPERATORS TO WELD REPAIR THE CRACK BEFORE INSTALLING THE SLEEVE DESCRIBED IN ISSUES B AND C OF THE SERVICE BULLETIN. COMPLIANCE WITH THIS SERVICE BULLETIN SHOULD BE ACCOMPLISHED ON AN EXPEDITED BASIS, BUT NO LATER THAN THE NEXT INSPECTION REQUIRED BY ISSUE C OR ANNUAL INSPECTION, WHICHEVER IS SOONER.
In plain language (FlightFinder summary)
The NTSB asks the FAA to issue an Airworthiness Directive that makes compliance with Extra Flugzeugbau Service Bulletin 300-2-95 Issue C mandatory, but with modified inspection procedures: replace visual inspections with dye penetrant inspection and expand the inspection areas to include welds at the aft end of the aft brackets for the horizontal stabilizer attachment assembly. Additionally, if a crack is detected in the upper longeron area, operators must weld-repair the crack before installing the sleeve described in Issues B and C of the service bulletin. Compliance must be completed on an expedited basis, but no later than the next inspection required by Issue C or the annual inspection, whichever comes first.
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 5, 2003 |
| NTSB number | CHI99FA120 |
| Addressees | FAA |
External links
NTSB safety recommendations are advisory; addressees are not legally required to adopt them. Source: NTSB CAROL (public domain).