Frank Robinson, the legendary designer and leader of Robinson Helicopter, passed away November 12 at his California home.
Frank Robinson, founder of Robinson Helicopter Company (RHC), resigned as President and Chairman of the Board on August 10, 2010. That same day, Frank’s son, Kurt Robinson was elected by the Board of Directors to assume the positions of his father.
He enjoyed 12 full years of retirement, before passing away at age 92.
WASHINGTON (Oct. 27, 2022) — The National Transportation Safety Board today issued an urgent safety recommendation to the Federal Aviation Administration (FAA) and Transport Canada, acting upon the NTSB’s findings into the ongoing investigation of the Sept. 4, 2022, crash of a De Havilland Canada DHC-3 in Mutiny Bay, Washington.
The NTSB urgently recommends the FAA and Transport Canada require all operators of De Havilland Canada DHC-3 airplanes to conduct an immediate one-time inspection of the horizontal stabilizer actuator lock ring in accordance with the instructions in the Viking Air Limited service letter and report their findings to the FAA and Transport Canada, respectively.
“Immediate action needs to be taken to inspect the actuator of DHC-3 airplanes, of which 40% operate in the United States, to prevent a similar tragedy from happening,” said NTSB Chair Jennifer Homendy. “NTSB is issuing this urgent recommendation as a result of a significant finding made by NTSB investigators.”
Viking Air Limited, the current certificate holder for the DHC-3 airplane, yesterday published a service letter recommending DHC-3 airplane operators “visually confirm that the stabilizer actuator lock ring is present, correctly seated in the groove in the upper housing…and the lock ring tang is engaged in the clamp nut.” Viking Air Limited stated that this action was to be performed upon receiving this service letter, “regardless of when the most recent maintenance was completed.”
During the examination of the airplane wreckage, the NTSB found that the clamp nut that attaches the top eye end and bearing assembly of the horizontal stabilizer actuator to the actuator barrel had unscrewed from the barrel. The examination also found that the circular wire lock ring, which was designed to prevent the clamp nut from unscrewing, was not present. If the actuator barrel and the clamp nut are not secured together and become separated, the actuator would not be able to control the position of the horizontal stabilizer, resulting in a reduction or loss of pitch control.
To report an incident/accident or if you are a public safety agency, please call 1-844-373-9922 or 202-314-6290 to speak to a Watch Officer at the NTSB Response Operations Center (ROC) in Washington, DC (24/7).
Deleting an Aircraft Profile is easy, but it is permanent.
1. Locate and View the AC Profile you want to Delete:
2. In the opened AC Profile, locate and click the DELETE button:
3. If you are sure, click the red “Yes, delete this aircraft profile” button. You will never be able to retrieve that profile again, and we will not be able to retrieve it for you, so please, proceed with caution:
*Make sure when using the copy/duplicate functions, to double check the data integrity, as it it is possible that some information may not transfer over in it’s entirety. We have tried this ourselves and have NOT run into any data loss, but it is good to be diligent and check data integrity.
If you have any concerns, please contact us at (540) 217-4471
Calculations seem off? Check your numbers, then double check.
If the calculations aren’t working out, double check all your hand typed-numbers, in every field. It’s likely that they might need adjusting.
We had a customer call to say the calculations weren’t working, but they were. One of his math equations in the “As Received” section was incorrect. After fixing the numbers, all calculations were correct.
If you possibly received incorrect numbers from previous work, it could cause the final calculation to be incorrect. If you feel YOUR numbers are right, make sure the numbers you “inherited” from previous work is accurate.
WEIGHT / CG RANGE:
Maximum (Allowable) Weight: the Aircraft Manual will be the source for this figure.
Calculation: Maximum (Allowable) Weight, less Empty Weight, must equal Useful Load, mathematically.
AS RECEIVED: (Typically, “As Received” means someone else weighed the aircraft, before you received it)
Previous Weight and Balance Date: This date is always before you received it.
Empty Weight: This number comes from the last document or report as W&B Calculations.
Useful Load: Maximum Weight – Empty Weight = Useful Load
Empty Weight x CG (Arm) = Moment
REVISIONS: (What has been removed, and what has been added.)
Moment + Moment Column Totals = New Moment
When you remove an item, be sure to include the minus (-) sign before the numbers.
The Moment will be auto-calculated, after you have added the Weight and Arm, then click Save.
NEW: (In this section, all numbers are auto-calculated.)
Choose either As Calculated or As Weighed, click SAVE.
Here’s a great W&B reference video, from AeroGuard:
You can subscribe to receive notifications about published ADs and EADs by navigating to the FAA GovDelivery Service. If you are already subscribed to notifications, you don’t have to take any other action, FAA officials reported.
Additionally, the FAA will continue to mail copies of the AD Biweekly, which is a paid subscription of all ADs issued in the Federal Register over the previous two-week period, officials noted.