You're sitting up there in the copilot's seat, with the instructor on your left and there are more gadgets than you ever saw before, and you can't remember which way the prop controls go, or how much manifold pressure you use on take off, or what the elevator tab
settings are supposed to be.
The directive requires initial and repeat inspections of the elevator tab
assembly to detect any damage or other problems.
Boeing CAAC joined FAA in issuing an Airworthiness Directive requesting domestic operators of 737-600s, -700s, -800s, -900s and -900ERs to inspect elevator tab
This AD requires inspection of the small jam nut on the elevator tab
control rods to detect inspection putty and to determine its condition; a torque check of the small and large jam nuts on the tab control rod, if necessary; and corrective actions as applicable.
In one case, the vibration caused a piece of the elevator tab
mechanism to break off during flight according to The Associated Press.
The AD would require initial and repetitive inspections of the elevator tab
assembly to find any damage or discrepancy and corrective actions if necessary.
The existing AD requires initial and repetitive inspections of the elevator tab
assembly to detect any damage or discrepancy and corrective actions.
That AD supersedes AD 99-05-15, amendment 39-11063 and requires a one-time inspection of the attachment nuts at each end attachment of the elevator tab
push rods to measure run-on torque values and corrective actions, if necessary.
This AD currently requires a one-time inspection of the attachment nuts at each end attachment of the elevator tab
push rods to measure run-on torque values and corrective actions if necessary.
Further examination revealed the pitch trim system indicated "18U" (up), and the elevator tabs
were in the tab down (airplane nose-up) position.
Boeing The US FAA has ordered a second round of inspections on elevator tabs
for Boeing 737 Next Generation aircraft after a second in-flight vibration incident.