A-70-027
NTSB Safety Recommendation — Aviation
Recommendation text
2. REVIEW FOR ADEQUACY, AND CONSISTENCY WITH CURRENT TECHNOLOGICAL CAPABILITIES, THE INSPECTION PROCESSES, PROCEDURES, AND EQUIPMENT BEING UTILIZED DURING THE MANUFACTURING AND ASSOCIATED INSPECTIONS OF CRITICAL ROTATING COMPONENTS OF TURBINE ENGINES. 3. INITIATE APPROPRIATE ACTION TO PROVIDE ADDITIONAL ASSURANCE THAT CRITICAL ROTATING PARTS OF TURBINE ENGINES, SUCH AS THE P/N 576801 FAN HUB AND DISK ASSEMBLY OF THE PRATT & WHITNEY JT3D ENGINE, WHICH ARE PRESENTLY IN SERVICE OR WHICH ARE SCHEDULED TO GO IN SERVICE, ARE FREE OF DEFECTS WHICH COULD CULMINATE IN FAILURE OF SUCH PARTS. 1. REVIEW REGULATORY REQUIREMENTS PERTAINING TO INSPECTION STANDARDS, PROCESS SPECIFICATIONS, INSPECTION PROCEDURES, AND METHODS DEALING WITH THE PROCESSING OF RAW MATERIALS AND ALLOYS UTILIZED IN THE MANUFACTURING OF CRITICAL ROTATING COMPONENTS OF TURBINE ENGINES, TO DETERMINE THE ADEQUACY OF PRESENT REQUIREMENTS.
In plain language (FlightFinder summary)
The FAA is asked to evaluate whether current rules and methods for inspecting raw materials and manufacturing critical turbine engine parts are sufficient given modern technology. Additionally, the agency should take steps to ensure that specific rotating components currently in use or being installed are free from defects that could lead to failure. This recommendation aims to improve safety by verifying that inspection standards keep pace with technological capabilities and that dangerous flaws are identified before they cause accidents.
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 | Nov 30, 1973 |
| NTSB number | 79663 |
| Addressees | FAA |
External links
NTSB safety recommendations are advisory; addressees are not legally required to adopt them. Source: NTSB CAROL (public domain).