A-68-002
NTSB Safety Recommendation — Aviation
Recommendation text
IT IS RECOMMENDED, THEREFORE, THAT A NEW INSTRUCTION BE INCORPORATED INTO THE G-159 AIRPLANE FLIGHT MANUAL WHICH WOULD PROSCRIBE THE "CRUISE LOCK OUT" POSITION FOR THE H.P. FUEL COCKS WHILE ENGAGED IN LOW AIRSPEED FLIGHT MANEUVERS. INVOLVING REPEATED POWER APPLICATIONS. "IT IS RECOMMENDED THAT THE FUEL LEVERS BE PLACED IN CRUISE LOCK OUT FOR THIS MANEUVER TO AVOID A POSSIBLE HANG UP OF THE LOCKS WITH AN OVERHEAT IN TGT."
In plain language (FlightFinder summary)
The NTSB advised the FAA to update airplane flight manuals to forbid using the cruise lock-out position for high-pressure fuel controls during low-speed maneuvers that require repeated power changes. This restriction aims to prevent the control locks from sticking, which could lead to engine temperatures exceeding safe limits.
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 | Jan 1, 1975 |
| NTSB number | MKC68A0003 |
| Addressees | FAA |
External links
NTSB safety recommendations are advisory; addressees are not legally required to adopt them. Source: NTSB CAROL (public domain).