Inspection mishap what to do/how to go about it?

Ensure gear lever is down
“Hey Bob put the gear lever down”
“Tim, double check gear lever down”
Gear lever and wheels down is one thing, but without hydraulic pressure the gear might not be locked down, which is what this accident sounds like. You want those locks in place before setting the airplane back on its wheels. We visually checked those locks.
 
ps when people say accept that mistakes happen, is this a mistake that you'd consider lightly/worth accepting?
The shop, or its insurance carrier, should pay for the inspection.
I'd thought so, so thanks for confirming! ps when people say accept that mistakes happen, is this a mistake that one would consider lightly/worth accepting?
its probably part of that Q of "over-reacting" but since I have been so conservative as the 2 other owners of this plane to keep it so clean i just bothers me that there is now something on record that is waived away like oh things can happen don't worry...
 
Gear lever and wheels down is one thing, but without hydraulic pressure the gear might not be locked down, which is what this accident sounds like. You want those locks in place before setting the airplane back on its wheels. We visually checked those locks.


I was about to comment on this, and maybe someone can help me understand the PA28R landing gear a little better. But shouldn’t the down lock springs have kept the gear from collapsing? Isn’t that what they are supposed to do, even if the gear was dropped without pressure (emer extend)?

Most landing gear I am familiar with will free fall and overcenter the drag braces, which the springs provide the tension to keep it overcentered. How do the downlock springs work on the arrow?
 
It's less likely to happen to you if you admit it can happen to you.

If I didn’t follow or use checklists and manuals maybe it could happen to me.

We had a outsourced shop work on a plane at work, both the mechanic doing the work and the one who double checked it made a big miss, their company’s insurance paid for the damage, both mechanics were terminated.
 
I was about to comment on this, and maybe someone can help me understand the PA28R landing gear a little better. But shouldn’t the down lock springs have kept the gear from collapsing? Isn’t that what they are supposed to do, even if the gear was dropped without pressure (emer extend)?

Most landing gear I am familiar with will free fall and overcenter the drag braces, which the springs provide the tension to keep it overcentered. How do the downlock springs work on the arrow?
the emergency extension procedure is: gear lever down, hold down the override to let hydraulic pressure to release gear and let gravity do it's work.
it's an override in that sense that the system wants to drop gear.
however if the hydraulic pump operates and the gear lever is up, when the master is switched on, it will try to retract the great as it wasn;t latched in the frist place.

1) yes it should latch but it is a emergency gear down
2) it should not retract if the airspeed is 0 with the extra mast a piper has

regardless, had the master been on and the switch been down, this wouldn't happen at all..
If I didn’t follow or use checklists and manuals maybe it could happen to me.

We had a outsourced shop work on a plane at work, both the mechanic doing the work and the one who double checked it made a big miss, their company’s insurance paid for the damage, both mechanics were terminated.
If I don't follow procedures and violate something as "simple" as a TFR I lose my license.
I don't like to see someone fired, but I should not carry the cost of someone else learning an expensive lesson either...
 
when people say accept that mistakes happen, is this a mistake that one would consider lightly/worth accepting?
I don't take it as you should "accept" the mistake, but simply that mistakes happen, you can't back, so move forward and ensure the shop takes care of that mistake to your satisfaction. But without the shop here to give their side of what happened its hard to judge how it happened without any more detail. However, I can tell you that after performing mx for many years on both airplanes and helicopters, most mechanics will feel like they just got hammered in the gut and will continually replay this event over and over of where they fkd up. And I've been there myself. Regardless, follow the advices here and ensure the shop gives you the results you want.
 
I don't take it as you should "accept" the mistake, but simply that mistakes happen, you can't back, so move forward and ensure the shop takes care of that mistake to your satisfaction. But without the shop here to give their side of what happened its hard to judge how it happened without any more detail. However, I can tell you that after performing mx for many years on both airplanes and helicopters, most mechanics will feel like they just got hammered in the gut and will continually replay this event over and over of where they fkd up. And I've been there myself. Regardless, follow the advices here and ensure the shop gives you the results you want.
thank you for that perspective bell206, to me its bit like bringing car into the shop for new tires and get it back with a scratch and dent in the door. but the tires are shiny :) I'll see how it comes back and will share some more detail here. I don't want to feel AP/IA reluctant handling a plane either, though at the same time, being charged $140/hr mwah...(seems like rate on higher end no?) Hopefully they have some conversations amongst them as you indicate, and lessons learnt I dont want to pay for with my (family's) life... Orginally it seems they are writing this event off as a no biggy. They take it more seriously now at least...
 
thank you for that perspective bell206, to me its bit like bringing car into the shop for new tires and get it back with a scratch and dent in the door. but the tires are shiny :) I'll see how it comes back and will share some more detail here. I don't want to feel AP/IA reluctant handling a plane either, though at the same time, being charged $140/hr mwah...(seems like rate on higher end no?) Hopefully they have some conversations amongst them as you indicate, and lessons learnt I dont want to pay for with my (family's) life... Orginally it seems they are writing this event off as a no biggy. They take it more seriously now at least...

And you’re still using this shop?!

They dropped your plane, I mean that’s a bad deal even if they charge you $40hr

$140hr for incompetence, god bless the American economy
 
Right now, on the good news side, the shop said it will fix it as best they can with new wing knots2u cover as I have asked for and a new pitot mast. So in that regard I can't ask for more, maybe.

But I will definitely have it reinspected (and maybe share the bill) and I am not sure if I will do my next annual there again to be honest.
You want to have it inspected before they "repair" it.
 
You want to have it inspected before they "repair" it.

Yes

I’d also want a independent source to inspect it, trusting the people who are responsible for the damage to fully detail all the damage they caused is not wise
 
hi folks,
my beloved PA28R-200 is in annual inspection right now and while things look solid from a squawk list perspective, I got a call earlier this week from the shop owner that a mishap happened:
the situation is that after they did the emergency gear extension test, it was forgotten to put the gear lever down and when the master was switched on and the plane was moved, the left gear collapsed and the wing tip hit the ground. the pitot mast also took a nice hit and the burden of the force cracking the wing plate where the pitot mast is located.

I am a bit ape**** about this and of course they'll fix it and things, but I am a bit left in awe that this could happen and I have been so careful with the plane and then this happened when you think you put it in great care.

the shop writes it off as no big deal and we'll take care of it, but I Am not happy with this situation at all especially considering every nut and bolt they use and minute spent they charge me heftily for... ps no gesture was made in terms of we'll work on the final bill or some sort of a offer to ease the feelings that I have right now.

I am reaching out to see if I am possibly overreacting, have you had a situation like that and how was it handled. what are my rights, what is the shop's duty.
Any kind of advice or suggestion would help.

thank you!
xander
Something not right about this scenario. Even with the switch up, the weight on the wheels should prevent the gear from trying to retract.
 
I'm not an Arrow flyer/owner. The last Piper I flew was a PA-20, so take my post with a grain of salt. I visualize the gear retracting, and my mind view shows the wing striking the ground with the first and heaviest contact at the rear tip. The right and nose gears are down, and the left rear corner of the wing takes the long moment-arm of striking pressure.

This would concern me greatly. Things I don't know, but would find out: 1. Does the Arrow wing have a washout from root to tip? 2. If yes, is it measured? 3. Did the plane fly hands off before the incident? 4. Does it fly hands off identical after this? 5. Did it require a change of the aileron trim tab after?(to fix an unintended new roll moment).

I would not permit the shop that did the damage to do the inspection or the repair. Their motivation and you're motivation are almost opposing now. Away from the shop, get enough done to have a ferry permit, and test fly to a different shop, so the flight characteristics can be tested. Get their insurance carrier info first, and the plane can leave with a ferry. Have it inspected well, and check how it flies, not how it sits on the ground.

Best of luck, again - I'm not remotely an expert in the Arrow.
 
the emergency extension procedure is: gear lever down, hold down the override to let hydraulic pressure to release gear and let gravity do it's work.
it's an override in that sense that the system wants to drop gear.
however if the hydraulic pump operates and the gear lever is up, when the master is switched on, it will try to retract the great as it wasn;t latched in the frist place.

1) yes it should latch but it is a emergency gear down
2) it should not retract if the airspeed is 0 with the extra mast a piper has

regardless, had the master been on and the switch been down, this wouldn't happen at all..

If I don't follow procedures and violate something as "simple" as a TFR I lose my license.
I don't like to see someone fired, but I should not carry the cost of someone else learning an expensive lesson either...
It is been a long while since I inspected an Arrow, but I am pretty sure that the emergency extension checklist has you putting the gear lever in the down position. Further, I am really sure that the first thing that the mechanics should have checked once the gear dropped is whether all three locked down. That is the whole point of the test. I am also very certain that there is a squat switch which would have kept the gear from trying to retract. I also can't figure out why the master would be on just to move the plane. In short, if you properly relayed what they told you, then they are hiding something as this doesn't add up.
 
Nah. This is what trolling looks like.

Next they’ll be suggesting criminal charges against the shop.

I think you are more resembling a troll than anyone else

I gave constructive input
You just give insults
 
OP original post

After gear test, with the gear lever in up, and master on, the plane was towed. One gear retracted.

With the hydraulic pressure trying to retract, the lock was unlatched, and as they made a turn, the side load plus hydraulic pressure took the gear up. Makes sense to me.

IF the mechanic has an otherwise good job performance, he should not lose his job.
 
OP original post

After gear test, with the gear lever in up, and master on, the plane was towed. One gear retracted.

With the hydraulic pressure trying to retract, the lock was unlatched, and as they made a turn, the side load plus hydraulic pressure took the gear up. Makes sense to me.

IF the mechanic has an otherwise good job performance, he should not lose his job.

If they didn’t use or follow the manual / best practices for something this major and obvious, what other stuff have they messed up on and you just don’t know about (yet?)

Life ain’t fair
When it comes to a plane Id be a horrible human to allow someone who proved they can’t do their job to continue to work on a plane that I’m going to be flying pax in, flying over peoples homes in

this ain’t giving the fat kid in baseball a participation trophy

Yall really want a “no mechanic left behind”?
 
generally they deliver quality work albeit it being for top dollar (140/hr and decent markup on parts).
one time they burnt the coil pack of my EIS and it cost me $1500 to have it repaired as it was said it was caused by a failed spark plug that later on came out clean on 2nd opinion.
I am more than aware that plane ownership is not cheap, but its more the safety aspect I am concerned with, precisely to your point, this girl was clean until that. and as you say, arrow and wing is another thing. :)

at this moment I have let them know my confidence is a bit shattered and I hope for a great perfection job with new pitot and knots2u wing seal that got cracked and I hope they'll deliver.

I am with them for a little over 2 years now btw to answer that q...
So in just two years they've lied to you and dropped your plane? :o

I'd be friendly with them long enough to get my plane the hell out of their shop and never go back.

I have some of the same thoughts as @Barrett50. You just got a sudden hard hit to a corner of a wingtip. This could have twisted the wing, bent it upwards, or damaged the wing attach points. Precise measurements need to be taken to ensure the wing isn't bent, and the attach points need to be inspected carefully (especially in light of the AD). I would suggest that whoever fixes this needs to work with Piper to come up with a plan of action to assess the damage and come up with a repair. You need to ensure that this is a "good as new" repair, not a "good enough" repair, or you may find that you're unable to sell the plane at any price except as a project.

It would probably help your case if you file a claim with your insurance. They'll handle going after the shop's insurance, and they'll know the right people to get the plane repaired correctly.

It sounds like you don't want to be the bad guy, and I can understand that - But you need someone to be the bad guy, and your insurance can handle that.
 
$140hr strikes me as low/lower end of market. Nobody is getting rich at that rate.

These things happen, even with top end AMTs.

I would give them a chance to make it right. It doesn't strike me as an automatic huge deal.
 
$140hr strikes me as low/lower end of market. Nobody is getting rich at that rate.

These things happen, even with top end AMTs.

I would give them a chance to make it right. It doesn't strike me as an automatic huge deal.

So 140 is cheap and you expect your mechanic to drop your plane on its wing?

Y'all didn’t lower the bar, y'all buried it lol
 
Perfect people like yourself are rare specimens. It sounds like you could be doing a lot more with your ability than trolling this message board.

I’m not perfect, honestly I’d say any dumb farm boy would know not to trust a shop that dropped his F150, I’d also say that they’d figure dropping a truck off a lift wasn’t a normal everyday mistake

Alas the boutique crowd will call me a bot/troll/whatever for speaking some basic simple truth
 
I’m not perfect, honestly I’d say any dumb farm boy would know not to trust a shop that dropped his F150, I’d also say that they’d figure dropping a truck off a lift wasn’t a normal everyday mistake

Alas the boutique crowd will call me a bot/troll/whatever for speaking some basic simple truth

Fire every mechanic that misses a step and we have no mechanics in short order. I suppose you are prepared to pull your own ticket the minute you miss a check list item?

We fire mechanics that have a habit of making or try to cover up these mistakes. Sounds like the OP's shop is straight up and transparent about what happened. That's a whole lot better than a lot of stories here.
 
Fire every mechanic that misses a step and we have no mechanics in short order. I suppose you are prepared to pull your own ticket the minute you miss a check list item?

We fire mechanics that have a habit of making or try to cover up these mistakes. Sounds like the OP's shop is straight up and transparent about what happened. That's a whole lot better than a lot of stories here.

He didn’t strip a small machine screw head, or drop a torque wrench, HE DROPPED A ENTIRE PLANE ON ITS WING BECAUSE THE GEAR HANDLE WAS UP, that’s something that not only could total a plane but could kill someone.

If I landed one of our widebodies gear up because I forgot to put the gear down (and everyone else missed it and the alarms) yeah I’d expect a major bump in my proverbial road.
 
Most landing gear I am familiar with will free fall and overcenter the drag braces, which the springs provide the tension to keep it overcentered. How do the downlock springs work on the arrow?
1739549969947.png
This is the main gear retraction mechanism. #30 is the downlock hook. When the hydraulic cylinder retracts the gear, the mechanism is pulled to the right at that red line I drew there. This pulls that turnbuckle #19 and lifts the hook. When the gear is extended, the hook slides onto its pin and locks the gear down by preventing folding of the mechanism at #31.

Now, in the shop, an emergency extension might not latch that mechanism properly, especially if the whole affair is poorly lubricated or some corrosion has set in. In the air, vibration and wind might encourage latching.
 
View attachment 138131
This is the main gear retraction mechanism. #30 is the downlock hook. When the hydraulic cylinder retracts the gear, the mechanism is pulled to the right at that red line I drew there. This pulls that turnbuckle #19 and lifts the hook. When the gear is extended, the hook slides onto its pin and locks the gear down by preventing folding of the mechanism at #31.

Now, in the shop, an emergency extension might not latch that mechanism properly, especially if the whole affair is poorly lubricated or some corrosion has set in. In the air, vibration and wind might encourage latching.
Thanks @Dan Thomas !!! I appreciate the explanation and education. That’s seems similar to most other gear I’ve dealt with, and a fairly simple operation. I bet the shop adds a step to their ops checks to ensure the gear is locked upon extension.

All the mil jets I’ve worked on had a time limit for extension and retraction and if it didn’t lock down or up within a certain period of time, then troubleshooting and repair were due. I had a lot of fun troubleshooting those, and always learned something on every one.
 
In all your years and flying hours, you have never been reminded by other crew members to lower the gear, never had a gear warning, and never realized that you were behind the check list and needed to get the gear down late?

In a mere 1000 hours, I have failed to check gear down once, but in an old Cessna 172, the gear are down all the time, so a smooth rollout. Just to be safe in the retractables I flew, gear down checks were done in all planes I flew. On that particular day, there were 6 planes in the pattern ahead of me, and several people in the pattern were doing ridiculous things, and I had to fly a one mile final for spacing, and a plane cut in front of me. I considered a go around, but with 40 degrees of flaps, had space to safely land.

Flying single pilot in congested airspace, constantly reading checklists is grossly unsafe. With one pilot flying, and another monitoring, that is an entirely different world. My home airport often had 6 planes in the circuit, and a hot shot Stearman who would cut off from the flow and make full deflection slips in what he considered an excessive gap. He was a highly trained and proficient airline pilot, who never made mistakes.

He probably saved a quart of gas by cutting other pilots off in the pattern. He did it regularly, so may have added up to real money.
 
He was a highly trained and proficient airline pilot, who never made mistakes.

He probably saved a quart of gas by cutting other pilots off in the pattern. He did it regularly, so may have added up to real money.
As if an airline pilot that can afford to own a Stearman needs to save a quart of fuel at the expense of gaining a reputation as a jerk.
 
One guy wanted to access the boost pump for some reason on a Beech Deb

IIRC. He used the Emergency Extension to open the gear doors. Then he

forgot about it. When he later pulled it from the hangar the Nose Gear

collapsed. Biggest damage was to Rudder which hit overhanging beam.

His body shop fixed that !!!
 
As if an airline pilot that can afford to own a Stearman needs to save a quart of fuel at the expense of gaining a reputation as a jerk.
Dan, you missed the sarcasm aimed at Roller, the perfect pilot.
 
Methinks this is more of a Human Factors incident rather than Technical.

Rushing due to quitting time, cell phone call or other distractions likely

play a part.
 
To summarize:

Wing fell some distance, folding the gear. Some things got bent visibly. They will obviously need replacing/repairing.

No point in having the shop start to make repairs until it has been inspected by someone with structural airframe experience, preferably with Cherokee experience. No secret that there is an AD for potential issues at the wing attach fittings. If it were my airplane, I'd want a good look at as much of the internal structure of the wing as possible - that's where the expert comes in.

The odds are things are ok, other than the visible damage. But you don't want to play the odds, nor is it presumably permitted.

Many (most? all?) Piper retracts hold the gear up the hydraulic system. Pretty sure that if the downlocks were engaged, the position of the gear handle should not matter unless the pump was run while the handle was in the wrong positon.
 
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Now, in the shop, an emergency extension might not latch that mechanism properly, especially if the whole affair is poorly lubricated or some corrosion has set in. In the air, vibration and wind might encourage latching.
Eh, if the gear handle is up and the power is on, the locks aren't going to mean much. The only thing that keeps the gear from folding immediately is that the weight on the overcenter part makes it impossible for the hydraulics to overcome. Bounce it over the edge of the hangar door lip or something and you can get it to fold.
 
\

Eh, if the gear handle is up and the power is on, the locks aren't going to mean much. The only thing that keeps the gear from folding immediately is that the weight on the overcenter part makes it impossible for the hydraulics to overcome. Bounce it over the edge of the hangar door lip or something and you can get it to fold.
Very possibly. But why on earth would the power be on if the sequence was handled in the normal order. Crazily obsess over the combination of power and gear handle in the shop.
 
Very possibly. But why on earth would the power be on if the sequence was handled in the normal order. Crazily obsess over the combination of power and gear handle in the shop.
Again, that we can't explain. As I mentioned in my plane, the check gear handle down is in my checklist about three times before you get to the place where it could possibly be a problem.

The answer is they don't use checklists, and they do multiple things at once. You jack the plane, swing the gear up, drop it down. Lower the jacks. Now you gotta move the plane. Then you decide you need the master for something, reading an electronic tach hour display, just getting some light in the cockpit, whatever. Eventually, all the holes line up.
 
Dan, you missed the sarcasm aimed at Roller, the perfect pilot.

I ain’t perfect

But I’m experienced enough to know large mistakes have consequences
 
Unfortunately, most of us live lower on the A/P food chain than you.

First rate A/P's work for the airlines, and get great salaries, and benefits.
Second rate A/P's work at large FBO's, and get very good salaries and benefits. They make occasional minor mistakes.
Third rate A/P's work at smaller airports and repair facilities, lower salaries, and are not as skilled as the above.

Those third rate mechanics make occasional mistakes, but are unlikely to be fired because the pool of replacements are mechanics that have been let go elsewhere, or neophytes who need a lot of training to become skilled enough to earn the A/P rating.

The thread of JimK's about his engine probably represents an example of the problem.

Unfortunately, many owners here have been in terrible corners when the shop does not have enough mechanics to get to their repair done within a year or more.

Skilled mechanics don't just appear when needed, and $140 charge per hour does not represent the hourly pay, costs to the employer are generally more than half the labor charge.

At my employer, my salary was 40% of the actual cost of having me on the payroll. They preferred to pay double time rather than hire a new employee. So if that FBO charges $140, that mech, if working alone, is probably getting about $56 before taxes, and $40 after taxes. That is about $83,000 a year. If there were 2 guys working on that plane, half that wage was being paid, $41,500 a year.

The GA guys have to put up with what that tier of mechanics is, not what it should be.

You have the privilege of top tier mechanics, highly paid, and very competent, consider yourself fortunate.
 
Unfortunately, most of us live lower on the A/P food chain than you.

First rate A/P's work for the airlines, and get great salaries, and benefits.
Second rate A/P's work at large FBO's, and get very good salaries and benefits. They make occasional minor mistakes.
Third rate A/P's work at smaller airports and repair facilities, lower salaries, and are not as skilled as the above.

Those third rate mechanics make occasional mistakes, but are unlikely to be fired because the pool of replacements are mechanics that have been let go elsewhere, or neophytes who need a lot of training to become skilled enough to earn the A/P rating.

The thread of JimK's about his engine probably represents an example of the problem.

Unfortunately, many owners here have been in terrible corners when the shop does not have enough mechanics to get to their repair done within a year or more.

Skilled mechanics don't just appear when needed, and $140 charge per hour does not represent the hourly pay, costs to the employer are generally more than half the labor charge.

At my employer, my salary was 40% of the actual cost of having me on the payroll. They preferred to pay double time rather than hire a new employee. So if that FBO charges $140, that mech, if working alone, is probably getting about $56 before taxes, and $40 after taxes. That is about $83,000 a year. If there were 2 guys working on that plane, half that wage was being paid, $41,500 a year.

The GA guys have to put up with what that tier of mechanics is, not what it should be.

You have the privilege of top tier mechanics, highly paid, and very competent, consider yourself fortunate.

Never asked my guys what tier they are, and I pay cash

I also work alongside them during annuals, most of it ain’t rocket surgery for a kid who rode a tractor before a car.

Never heard of any of these boys dropping a plane on its wing ether

APs I know seem to have a pretty good life, not fake it till you make it 10% trying to be the 1% lifestyle, but they got their own planes, kids seem to not want for much, own their own homes and they don’t seem stressed about debt. Might just be the country lifestyle over the city sickness though
 
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