Picked the Meyers up at a BEAUTIFUL grass strip (9C2) in MI late
afternoon on Sat. 9/1 and repositioned it to a more convenient airport
(KOEB) for departure on 9/2, first stop on 9/2 was the Meyers factory at
Tecumseh MI (3TE) then S24/AKR/BPT with an RON at AOO. After morning fog
burn-off we departed AOO for Lost Acres (Chambersburg PA) then headed to
to Grimes for a short visit before heading to the owners field west of
Millville NJ. Just after crossing the Susquehanna with no good options
the normal radial engine "marking of territory" with oil became a
concern as droplets began to coat the windshield, goggles, helmet, and
on close inspection I could see droplets streaming off the RH
wraparound, no good options...............................down the river
to CXY with the river or city as the only choices for a landing, and
equidistant to Carlisle or one of the fields east. Just prior to
Grantville I confirmed a 10 psi drop in oil pressure and deviated a bit
further south of a direct route to Grimes to provide more landing
options and began looking for the now closed Sky Classics having earlier
decided to land at Farmers Pride rather then Grimes. Almost immediately
after beginning a climb to increase options the cylinder departed with a
loud BANG at that point I was over the southwest edge of a easily
reachable (but fenced, think arrested landing) horse farm. When the
cylinder blew I just saw a flash in my RH peripheral vision and
instinctively knew I had blown a jug, not sure if the flash was the
cylinder in motion or the burning fuel/air mixture from inside the
cylinder and now open exhaust collector, or a combination of both. My
feeling is that the engine quit briefly at that time, but continued to
windmill, and then caught again after brief period recovering from the
gapping hole in the induction system, at this point I confirmed that I
had a good chance to make a much better undulating field just south of
the horse farm that was headed into the wind and picked a strip of that
field that had a low crop (6" Alfalfa) planted. I arrived over the
midfield for a 225 degree overhead approach and made an continuous turn
to a dogleg final, thinking I was a bit high I pulled the power off,
then second guessing myself due to increased drag from the damaged
prop/engine I moved the throttle forward, not expecting anything I was
surprised to hear the engine accelerate after an initial dead period. In
the final diagnosis I think I would have been fine without the
additional power since I landed comfortably inside the threshold during
the inaugural landing at the new Lindley Murray Road Airport. Google
shows the horse farm as 1500' (with fences) the Lindley Murray Road
field as a 2100' dogleg of which I used about 1200' between float and
rollout. BEST landing of my career, smooth, and as always a
three-pointer, the field is so good that I wouldn't hesitate to land the
Citabria there tomorrow. Landed 1.5 miles SW of Sky Classics, 10 miles
west of Farmers Pride, 19 miles west of Grimes. The entire right side to
the tail, underside of the center section, wings out a few feet, and my
helmet, were well oiled, the oil sparkled with aluminum flakes from the
rod pounding against the case, very glad I hadn't departed Lost Acres
with only the goggles as I had considered doing.
*_Lessons Learned_*
Would it have continued to run long enough to land normally if I hadn't
added climb power, if I had reduced power???????????? My feeling is that
it was very close to departing, that in the end it was better to have
departed when it did rather then while dragging it into a short field
landing given the outcome, not to mention the hours from central OH to
the Cumberland Valley with "few"
options....................................hindsight is always 20/20,
doubtful that I've ever had any guidance on the signs of imminent
cylinder loss even though it was a frequent topic of conversation when I
began flying Beech 18's in the late 60's. Had I known then what I know I
wouldn't have attempted the climb but have just landed at Sky Classics,
this was no time to attempt arrival at a field of my choosing, BUT
that's 20/20 hindsight and while I knew there was a problem I had no
idea of it's immediacy. While the engine/prop was seriously compromised
it may have been able to drag me to Sky Classics had I not had a good
field available, the operative word here is
"may".................................................it was running
rough at reduced RPM's, and with a damaged prop that could have failed
and was not very efficient, so we have no idea how long it would have
continued to produce any power.
The engine was overhauled in 1991 by one of the two recognized Kinner
experts and was in storage until 3 years ago while this project changed
hands. I was much surprised to see the blue silicon sealant on the
cylinder base immediately suspecting that as the cause because it
quickly gets extruded out allowing the cylinder to move imperceptibly
which shock loads the cylinder base studs leading to failure. It had
been my understanding that said expert does not use the blue stuff, it
now turns out that he did use it in the distant past thereby making
older overhauls suspect, this could be a case of failure due to
inappropriate use of modern technology rather then then the old
technology engine. An additional factor is that in the past the
overhauler used Kinner studs with cut threads but has changed to
stronger P&W studs with rolled threads in recent years.
I've been asked how rough it was, how noisy, could I read the engine
instruments, how much power was it producing, oil pressure after the
cylinder loss...........................I haven't the fainest idea my
sole focus was on the nose and field, I never looked inside the cockpit,
never surveyed the damage in flight, it was flying, the engine was
producing some power so I kept it
running.............................................we landed. The prop
photo is of the most seriously damaged blade the other one was missing
about half as much wood, given that it was wood the out-of-balance
condition was much less then if metal, however my feeling is the
combination of damaged prop and seriously out of balance engine resulted
in greater then normal windmilling drag at idle..................use for
planning if faced with a similar
situation.............................and no doubt there was a
significant loss in prop efficiency. No evidence that missing parts
impacted the airframe heading aft, however there is evidence of fresh
impact damage to cooling fins on most of the cylinders so pieces went
forward and hit the prop before being slung aft, the piston must have
departed almost immediately given the fact that there is no significant
damage to the crankcase opening, I suspect the piston caused the major
prop damage.
To put this in perspective I must note that this is my first
catastrophic failure of any type in 18000 hours of which 10000 is behind
all variety of current and vintage air cooled engines except
rotaries............................and the BEST landing I've made in 43
years......................................it truly was a very smooth
three-pointer.
_*Remember*_
It's always better to land in short Alfalfa then to crap in tall
Clover...................................................and NEVER wear
light colors when eating at Mexican or Italian restaurants, OR when
flying open cockpit aircraft..........................
Tom-
http://www.whptv.com/news/local/story.aspx?content_id=42962cc9-1b60-4079-b780-9e1ebdb8999f