A-70-054
NTSB Safety Recommendation — Aviation
Recommendation text
A. ALL DC-8 OPERATORS BE ADVISED OF THE HAZARDOUS CONDITION THAT CAN BE CREATED BY FOREIGN OBJECT JAMMING OF THE AIRCRAFT'S ELEVATORS. B. UNTIL ADEQUATE PROCEDURES ARE DEVELOPED FOR POSITIVE CHECK OF ELEVATOR POSITION, ALL DC-8 OPERATORS BE ADVISED THAT TAKEOFF SHOULD BE ABORTED WHENEVER PREMATURE OR UNACCEPTABLE ROTATION OF THE AIRCRAFT OCCURS DURING TAKEOFF. C. THE DC-8 FLIGHT CONTROL SYSTEM BEEVALUATED BY THE FAA IN THE INTEREST OF DEVELOPING A STANDARD PROCEDURE FOR CHECKING THE SYSTEM FROM THE COCKPIT. THE PROCEDURE SHOULD PROVIDE FOR POSITIVE DETECTION OF A JAMMED ELEVATOR. D. CONSIDERATION BE GIVEN FOR A REQUIREMENT TO INSTALL AN ELEVATOR POSITION INDICATOR IN THE COCKPIT OF ALL DC-8 AIRCRAFT.
In plain language (FlightFinder summary)
DC-8 operators are advised of hazards from foreign object jamming of elevators and to abort takeoff if premature rotation occurs. The FAA is asked to evaluate the flight control system to develop a cockpit procedure for positive detection of a jammed elevator, and consideration should be given to requiring an elevator position indicator in all DC-8 aircraft.
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 18, 1972 |
| NTSB number | DCA71AZ002 |
| Addressees | FAA |
External links
NTSB safety recommendations are advisory; addressees are not legally required to adopt them. Source: NTSB CAROL (public domain).