A-89-058
NTSB Safety Recommendation — Aviation
Recommendation text
THE NTSB RECOMMENDS THAT THE FEDERAL AVIATION ADMINISTRATION: DEVELOP A CONTINUING INSPECTION PROGRAM FOR THOSE B 737 AIRPLANES THAT HAVE INCORPORATED LAP JOINT TERMINATING ACTION (PROTRUDING HEAD SOLID FASTENERS INSTALLED IN THE UPPER ROW OF ALL LAP SPLICES) TO DETECT ANY FATIGUE CRACKING THAT MAY DEVELOP IN THE MIDDLE OR LOWER ROWS OF FUSE LAGE LAP JOINT FASTENER HOLES (FOR BOTH THE INNER AND OUTER SKIN PANELS) OR IN THE ADJACENT TEAR STRAP FASTENER HOLES, AND DEFINE THE TYPES OF INSPECTIONS, INSPECTION INTERVALS, AND CORRECTIVE ACTIONS NEEDED FOR CONTINUING AIRWORTHINESS.
In plain language (FlightFinder summary)
The FAA is asked to create a continuing inspection program for certain B 737 airplanes that have incorporated lap joint terminating action. The program must detect fatigue cracking that may occur in middle or lower rows of fuselage lap joint fastener holes (inner and outer skin panels) and adjacent tear strap fastener holes, and specify the types of inspections, intervals, and corrective actions needed for continued airworthiness.
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 | Feb 14, 1995 |
| NTSB number | DCA88MA054 |
| Addressees | FAA |
External links
NTSB safety recommendations are advisory; addressees are not legally required to adopt them. Source: NTSB CAROL (public domain).