Great video Paul. Sage comments and observations.
I am not a helo pilot nor have I been in a helicopter. Never had the desire. From a purely mechanical perspective, too many moving parts, all moving at the same time, not necessarily in harmony with each other.
Because of the high profile, celebrity status of Kobe Bryant, there has been much dissection of this accident chain by many aviation analysts. As with Paul’s videos, combined with several other reputable, knowledgeable video commentary, I have learned a few things that relate specifically to helo operations. Many times, us fixed wing fliers have assumed equipment such as an autopilot correlates equally when flying either a helicopter of fixed wing aircraft. Not exactly so, I am now finding out.
I did not know the S-76 autopilot requires a minimum of 50kts forward speed to work. Before this crash, I asked the question, why didn’t the pilot simply engage the autopilot, take a break to reassess his situation? I have an S-Tec 30 with altitude hold in my old airplane. While I enjoy hand flying the airplane more than just sitting back, I admit it is really nice to have the AP when occupied with navigating, taking pictures, or rummaging thru my flight bag. I have experimented with putting the airplane in some different attitudes with AP off, and then engage the AP to see essentially how fast the AP can put the greasy side down and shiney side up. Since the Bonanza stalls around 55mph clean, and that airplanes are always moving forward outside of a hammerhead or whip stall, even when stalled, the AP has all the cues available to work.
The helicopter AP’s need the same input…forward motion to work. Until this accident investigation, I assumed a four axis autopilot in a helo would allow for the AP to maintain a hover in IMC. The AP will not allow for controlled hover flight. As I understand it, just like most if not all fixed wing AP, it requires forward motion to work. This is why, for the AP to work in the accident S-76, the pilot would have to maintain a minimum of 50 kts forward speed. That explains to me, why he did not engage the AP.
The accident pilot was a CFII. He had taught IMC flight. He had 75 hours TT “under the hood”. But only 1.5 hours of actual IMC experience. I have no idea of his TT flight instruction experience, nor how many students he might have had during his instructing career. But it begs the question to a VFR pilot like me, how do you become a CFII, teaching others to fly IMC, when your personal TT in actual IMC is practically nil?
The pilot had developed a friendship with Bryant that appears to be deeper than Kobe simply preferring this pilot because he always got him to the destination no matter what. Another part of the accident chain of destinationitis.
He knew the route extremely well plus understood the normal ATC traffic flow, expectations, and communications, including the likelihood of holds as ATC directed the normal conga line of helo traffic. He knew pretty much when and where radar coverage would be lost or compromised.
He had signed off on the risk assessment as reasonably low. I believe he thought this was simply going to be another day at the office. I believe he was so confidant of being able to complete this flight, his only “plan B” was a zoom climb thru the marine layer if he lost sight of the ground, to pop out on top. From my understanding, the cloud base was approximately 1000-1100 ft with the tops at 2400 ft. At 140 kts cruising speed he was flying at, he would be in soup for less than 30 seconds, if that. Look for a hole over or near the destination to come back down. Since there was a celebrity onboard, there would be a pretty good excuse to justify his “Plan B” should ATC question the zoom climb on top with the added bonus, the pilot would get Koby to his game even faster.
I agree with the NTSB suggesting onboard cameras and CVR capabilities for part 121/135 ops. I have heard several airline captains comment that these onboard visual and listening devices enforce procedures because, in most cases, while no accident or incidence may result, out of parameter flying gets flagged with someone in the employment chain making a call asking why the pilot(s) may have deviated from established norms. In other words, knowing “big brother” employment is watching helps to discourage too much independent decision-making when an abnormality of deviation from established protocol will be clearly seen by someone outside the cockpit that has something to say about your paycheck. And if found in the wreckage, it helps the accident investigating agency come to a logical conclusion much faster.
Obviously, when he zoomed into the murk, he lost control, spatially disoriented, with the inevitable left hand descending , high speed corkscrew dive into the side of one of the many hills in the area. Another 90 feet, another few seconds, and we would have never known about his zoom climb to get on top.
I wonder how many times previous to this flight, there was similar behavior by him or if other helo pilots might habitually do likewise in similar situations. In many cases of accidents by both fixed wing pilots as well as helo pilots, there has been an established pattern of behavior that pushes the boundaries of safety somewhat regularly. As other noted, this pilot often flew under SVFR. That appears a normal flight for most professional VFR charter pilots in that area. I am not buying inadvertent VFR flight into IMC. I now wonder, how often he performed “Plan B” prior to the fatal flight.