A-73-107
NTSB Safety Recommendation — Aviation
Recommendation text
REQUIRE MODIFICATION OF THE THRUST REVERSER SYSTEM FOR THE ROCKWELL INTERNATIONAL SABRELINER MODEL 60 WHICH WOULD MINIMIZE REVERSER SYSTEM DEPENDENCE UPON RIGGING TOLERANCES TO INSURE PROPER INDICATORLIGHT OPERATION. IN ANY MODIFICATION, SERIOUS CONSIDERATION SHOULD BE GIVEN TO: (A) INCORPORATION OF A MICROSWITCH IN THE THRUST REVERSER ACTUATOR TO CONTROL THE UNLOCK LIGHT. (B) RELOCATION OF THE PRESENT UNLOCK LIGHT MICROSWITCH FROM THE SECONDARY LATCH SOLENOID TO A POSITION WHICH RESULTS IN UNLOCK LIGHT DEACTIVATION ONLY UPON POSITIVE PHYSICAL ENGAGEMENT OF SECONDARY LATCH AND REVERSER DOOR STRIKES.
In plain language (FlightFinder summary)
The National Transportation Safety Board advises the Federal Aviation Administration to update the thrust reverser system on the Rockwell Sabreliner 60 so that its warning lights function reliably regardless of minor assembly variations. The goal is to ensure pilots receive accurate visual confirmation that the safety latches are fully engaged before flight. This can be achieved by installing a new switch in the actuator or moving the existing sensor to a location that only triggers the light when the mechanical locks are positively secured.
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 Alternate Action |
|---|---|
| Mode | Aviation |
| Closed | Dec 3, 1975 |
| NTSB number | 79962 |
| Addressees | FAA |
External links
NTSB safety recommendations are advisory; addressees are not legally required to adopt them. Source: NTSB CAROL (public domain).