Saturday, 3 August 2013

Microlight Survival Adventure - The missing spark plug

My first aviation experience ... and it nearly killed me.

Bought a plane

My first aircraft I owned was a Skyfox/highly modified Quicksilver II, registration ZS-WRA. It was old, and just a little bit dodgy. I purchased the microlight from a second hand car salesman, who I shall call "Dick" going forward. He provided the engineer who gave the aircraft an airworthiness certificate. *Mistake 1* Dick is an very apt name for him as it turned out. 


Use your iPad to create your build log
The most interesting thing of the aircraft was that braking was achieved by taking your feet of the rudder pedals and dragging them on the ground to slow yourself down....Gosh this is scary in hindsight !


Started Flying

Dick also owned a Microlight school, and employed an instructor who I shall call "Johnny". They were to be my first aviation instructors. *Mistake 2*

The service at the air school was absolutely shocking, and the ethos was all about getting as much money as possible. A small example, I use to drive 1.5 hours to the flight school early in the mornings only to be turned back as decision would inevitably be that the wind was way too strong for my little airplane, or nobody decided to pitch up. For some strange reason I decided, to stick with the School, even after I watched Dick get drunk and eagerly take to the sky in his Aerobatic Aircraft *Mistake 3*

My first flight lasted 30 minutes on the 27th of September 2003. I got taught the Effects of controls and I loved every second.


Solo!

I finally went Solo on the 26th of February 2004 after a full 6 hours training. I was authorised and endorsed in my logbook for solo circuit, navigation and GF all at the same time.

I thought I was awesome, in just 6 hours I got to solo!!! Little did I know.....*Mistake 4*

My flying was perfectly adequate and safe, however I felt somewhat under prepared for some reason. So I thought I'd ask Johnny what happens when your engine stops on take-off...
The response was "Well you die". Hmmm, I thought, hope the engine doesn't stop.

A month later, I took my aircraft out of the Hanger on a beautiful day. At this point I have flown solo for 3 hours, and I enjoyed every moment of it.

I was a bit confused why I still had to pay a fee for every hour  flown in my own airplane, especially as there was nobody else at the airfield. (In hindsight, I never actually got signed out for solo flights) 

Today was going to be Stall training, exciting stuff. I started my ground roll and the airspeed indication was really slow to increase. I kept the nose on the ground but at 30 mph, I leapt into the air. 

"Strange" I thought.

The airspeed started to increase to the 50 mph range, and all was good once again. I decided to continue flying *Mistake 5*

Stalls of death

I started my stalls. I'd enter the stall take the power off and keep the nose up...50...49...48....Nose flops down.... dive to recover ... 48 .... winds starts whistling through flight wires....49.... ground seems to be approaching a bit faster than I expect.

I pulled out of the dive, and I thought I was going to depart the aircraft  through the bottom of the seat. My face hung in my lap, butterflies abounded.  Strange the stall speed on the airplane is 35 mph.

Fully convinced, that I stuffed up some how, I recovered to level flight at 3000 feet AGL and tried again.

Same happened. 

At this point some basic wisdom started to return me, or it was my guardian angel that suggested I land, as he couldn't keep the airplane in the air anymore.

Perfect landing, and I came to a stop. The airspeed indicator still indicated 30 mph. 

After investigating the problem, low and behold a wasp had decided to build a nest in my pitot tube.

Only now, can I understand the significance of the danger I was in. 

The story does not end here.

Mud...Water...Mud...Water

My father and I did some maintenance on the aircraft the next week-end and replaced the spark plugs and cleaned her up. She looked like a new aircraft, and I couldn't wait to take her up for a flight on the following weekend, I wanted to go do some more stall training.

The weekend arrived and it was a beautiful day. I rolled the airplane out, started her up and taxied to the active runway.

As I rolled onto the centerline, a Nut with a piece of bolt fell into my lap.

Hmm, best find where this belongs before I go flying.

I taxied of the runway, shut down the engine and completely inspected the airplane. After 30 minutes I decided that it must have been in the wing for a while and has shaken loose.

I decided to take off, 300 meters above the ground my spark plug fell out of the inverted Rotax 503. The engine is placed upside down above your head, and the plug hung right next to my head. I thought to myself, hmmmptf, I will have to screw that back. The engine continued to run on one cylinder, but the airspeed started to bleed off. 

So what did Johnny say again... engine failure on take off... you die. Sh!t.

I tried turning back to the runway, but lost too much height. My options where either the muddy marsh to left or the small dam to the right.

For about 10 seconds all I could think was ... Mud... Water...Mud...Water... and I decided on Mud.

I did almost flawless landing, however I ended up with the airplane on my back. The nose had folded up into a 90 degree angle. 

I was staring face down into the mud.

1 minute passed, and I decided to get out of the airplane.

The fact that I went on to lock my car keys in my car on the same day, broke a brick on my car window, and got asked whether the airplane is okay instead of whether I was okay by wife, did add some spice to the day.

God saved my life that day.

By all accounts, I should be dead and another statistic for the darwin awards.

I later found out that I had been flying the aircraft with a split propellor, a sheared main wing bolt from the previous stall flights, broken torque tube in the passenger rudder pedals, and incorrectly torqued spark plugs.

I had completely overstressed the airframe due to the previous stall training flights, and the blocked pitot tube.

Had I not lost the spark plug, I would have done more stall training flights, and I would have folded the wings 3000' above ground.

Looking back I cannot believe how ignorant I was and plainly put stupid.

The Guardian Angel assigned to me, had worked overtime, and I believe may have suffered some injuries in the process :)

How does this relate to building an aircraft?
I took the following lessons from this:

Lesson 1: Don't buy an airplane from someone who you do not trust, or if you cannot confirm the exact history of the aircraft or the project.

Lesson 2: You are only as good as the training you receive. Do your research and don't fly with fools or cowboy pilots.

Lesson 3: If it all seems too easy, it is most likely wrong! Check what you are being taught. A second opinion can save your life.

Lesson 4: Assume nothing, if it looks wrong, feels wrong or causes doubt in your mind, DO NOT FLY. Park it, go home, come back the next day to inspect it with a clear head.

Lesson 5: Just because a problem cannot be immediately found, does not mean it doesn't exist!

Do your part!
Please share your lessons on this page. I would love to hear what experiences you have had that others can learn from. 


6 comments:

  1. This story goes far in explaining a lot of formerly non-understandable accident reports I've read. You definitely have a knack for writing great satire.

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  2. Het groot geskrik daai dag toe jou spark plug uitgeval het.

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