A-85-110
NTSB Safety Recommendation — Aviation
Recommendation text
THE NTSB RECOMMENDS THAT THE FEDERAL AVIATION ADMINISTRATION: EVALUATE THE SUITABILITY OF THE TURBOCHARGER INLET GASKETS ON CESSNA MODEL T303 AIRPLANES; THE RELATED TURBOCHARGER INSTALLATION PROCEDURE, INCLUDING BOLT TORQUE SPECIFICATIONS, AND THE NECESSITY OF INSTALLING ADDITIONAL HEAT SHIELDING ON OR AROUND THE EXHAUST TURBOCHARGER ASSEMBLY OR ON OR AROUND THE FUEL AND OIL LINES AND OTHER VITAL COMPONENTS IN CLOSE PROXIMITY TO THIS ASSEMBLY. IF WARRANTED, REQUIRE THE INSTALLATION OF ADDITIONAL EXHAUST-TURBOCHARGER HEAT SHIELDING AND A REDESIGNED OR IMPROVED TURBOCHARGER INLET GASKET ON BOTH NEW IN-SERVICE AIRPLANES, AND PRESCRIBE APPROPRIATE TORQUE VALVES FOR BOLTS CONNECTING THE TURBOCHARGES TO THE TURBO INLET ELBOW IN APPLICABLE ASSEMBLY, MAINTENANCE, OR SERVICE MANUALS.
In plain language (FlightFinder summary)
The FAA is asked to evaluate the turbocharger inlet gaskets and installation procedures on Cessna Model T303 airplanes, including bolt torque specifications and the need for additional heat shielding around the exhaust turbocharger assembly and nearby fuel/oil lines. If warranted, the FAA must require installation of improved gaskets and extra heat shielding on new and in-service airplanes, and prescribe correct torque values for the turbocharger connection bolts in relevant manuals.
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 12, 1986 |
| NTSB number | LAX85FA376 |
| Addressees | FAA |
External links
NTSB safety recommendations are advisory; addressees are not legally required to adopt them. Source: NTSB CAROL (public domain).