A-94-009
NTSB Safety Recommendation — Aviation
Recommendation text
THE NTSB RECOMMENDS THAT THE FEDERAL AVIATION ADMINISTRATION: ISSUE AN AIRWORTHINESS DIRECTIVE TO REQUIRE THAT THE MIDSPAR FUSE PINS ON BOEING 747 AIRPLANES BE REMOVED AND INSPECTED FOR DEFORMATION FOLLOWING AN ENCOUNTER WITH SEVERE TURBULENCE IN WHICH THE AIRPLANE EXPERIENCES LARGE VARIATIONS IN ROLL AND YAW ATTITUDE, AS PROVIDED IN THE BOEING COMMERICAL AIRPLANE COMPANY'S PROPOSED MODIFICATIONS TO THE BOEING 747 MAINTENANCE MANUAL, SECTIONS 5-51-03 AND 5-51-06.
In plain language (FlightFinder summary)
The Federal Aviation Administration is asked to issue an airworthiness directive requiring that the midspar fuse pins on Boeing 747 airplanes be removed and inspected for deformation after the aircraft encounters severe turbulence that causes large variations in roll and yaw, following procedures in Boeing's proposed maintenance manual modifications.
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 | Mar 21, 1996 |
| NTSB number | DCA93MA033 |
| Addressees | FAA |
External links
NTSB safety recommendations are advisory; addressees are not legally required to adopt them. Source: NTSB CAROL (public domain).