I was wiring up a Garmin GFC 600 autopilot install on a Cessna 182 about 4 months ago. Checked a factory crimp on a D sub pin from the harness and it pulled right off with almost no force. Spent the next weekend re-crimping every single factory connection I could find in that panel. Has anyone else started redoing factory crimps as a standard step before install?
Worked a job last month on a Gulfstream that had a radome repair done about 2 years back by a different shop. The thing delaminated in a spot about 3 inches wide. When we pulled it apart, you could see where they didn't prep the surface right before bonding. No scuffing, no cleaning with the right solvent. Just slapped new material on top of old. The difference between that repair and the one we did is night and day. Has anyone else run into quick composite fixes that failed down the road?
I had this one day last month where I was re-wiring a 1978 Cessna 172 and every single D-sub pin I crimped looked like it came out of a factory (you know, that clean hex shape). Usually I get at least one or two that I have to redo because the wire slips or the insulation doesn't catch right, but this time I did like 50 pins in a row with zero mistakes. Anyone else have those random days where everything just clicks for no obvious reason?
I spent 3 hours last week chasing a short in the overhead panel until an old-timer showed me to use a toner probe on the connector pins instead of tracing each wire by hand, anyone else got a trick for cutting down troubleshooting time?
Was working with Dave from the Orlando hangar last week, he's been at it 20 years. He watched me do a butt splice and said 'you're relying on the connector too much, the twist matters more'. He showed me his method and I swear it holds way better. Anybody else learn something basic they thought they had down pat?
Three years ago I was troubleshooting a cabin light flicker on a Citation 560 at KAPA in Denver. Opened up the overhead panel and found a factory splice that had the shield wire twisted around a power conductor. No heat shrink, no tape, just bare copper touching. Spent 6 hours chasing shorts that turned into one 30 second fix. Has anyone else found factory work that was worse than the hangar floor mods?
I was working on a Gulfstream 650 overhead panel in Savannah about a month ago. My old Stabila level kept slipping off the curved surfaces so I grabbed a digital level I found in the shop. It said everything was dead flat, but when I mounted the panel it was off by almost 1/8th of an inch. Turns out the digital level needed calibration after being dropped. I learned to always double check digital tools against a known straight edge first. Has anyone else had a precision tool lie to them like that?
I was working a Collins HF radio swap on a Gulfstream GIV last week and overheard a senior tech mention he always waits 30 seconds after unplugging a cannon plug before touching pins. He said it lets any static charge or residual voltage bleed off from the backshell. Never really thought about it before but now I do it every time. Anyone got other little habits like that they swear by?
My lead says everyone skips it because 'it never fails', but I caught crusty corrosion in the drain line on a 2015 Archer last Tuesday that would have dumped water right into the nav module. Anyone else think we are getting lazy with the 'almost never fails' logic?
Been doing avionics bench work for about 4 years and kept getting hairline cracks on wire splices. Last week a senior tech watched me for 2 minutes and pointed out I wasn't letting the joint cool naturally - was blowing on it like a candle. Anyone else pick up bad habits early that took way too long to break?
I was doing a routine pitot-static check on a 1978 Cessna 172 out at KAPA around 4 PM. Everything was going fine until I got to the altimeter and it was reading 200 feet off when it should have been dead on. I pulled the thing apart and found a spider web inside the case blocking the static port. Never seen that before in 6 years of doing this. Has anyone else ever found weird debris inside an instrument that threw off your readings?
I had this weird glitch on a King Air panel where the left PFD would randomly flicker during taxi. After checking all the connectors and swapping the display with a known good unit from the shop, the problem came right back. Turned out to be a ground wire that looked perfectly fine but had a tiny break inside the insulation near the crimp terminal. I must have checked every other possibility before I finally pulled out the multimeter and did a voltage drop test on each ground point. That little break was adding just enough resistance to mess things up under vibration. Five hours wasted on something that took five minutes to fix once I knew what to look for. Has anyone else found a creative way to catch intermittent ground faults faster, or am I the only one who learns this the hard way?
I was cleaning out my dad's old workshop last weekend and came across a Pan Am training manual from 1965. It had a whole section on how to check vacuum tubes in navigation radios before even looking at the circuit. We're out here dealing with microprocessors and fiber optics now. It just struck me how much the core job has changed in 60 years. Has anyone else run across old training materials that made you stop and think?
Been using this meter daily for 4 years now, and 500 hours is nothing compared to what some guys get, but I finally passed the point where I cost-justified the purchase price. It's survived three drops off ladders and still reads within spec. Anyone else keep track of hours on their main meter?
Guy had 30 years on me and watched me swap three LRUs on a King Air before he said 'son you're guessing'. First thing he showed me was to check pin condition at the connector before touching anything else. Has anyone else had an old head save them hours with one simple tip?
I always thought those little GA avionics shops couldn't handle anything past a basic radio swap, but the guy there showed me a full Garmin G5000 retrofit they did on a Cessna 340, and I gotta admit I was dead wrong. Has anyone else had their mind changed by a shop that looked small-time from the outside?
Bought a no-name crimper off Amazon and it crushed half my pins on a 737 tray install. Had to redo the whole harness, cost me 3 hours of overtime. Anyone else get burned by budget crimping tools?
Back when I started at a small shop in Phoenix I would sit there with a paper schematic for an hour trying to trace a single wire bundle. Last week I had to troubleshoot an old King KX 155 install and grabbed my phone, took a picture of the whole panel, and zoomed in on the connector pins. Took me 15 minutes. Has anyone else switched to using phone photos for reference instead of fighting with paper?
Was going through old logs for a QA review and that stat from the shop's database legit made me stop for a minute, anyone else double check their crimpers after seeing something like that?
I was running a leak check last Tuesday and the airspeed indicator started bouncing like crazy at 15,000 feet sim altitude. Turned out a little O-ring in the drain valve had dried out and cracked. Anybody else run into weird issues with older Gulfstream pitot static components holding up?
Was waiting for a part at the supply counter last Tuesday when I heard two senior engineers talking. One said he's been seeing more interference issues from people grounding shielded cable at both ends instead of just one. Said it creates a ground loop that messes with sensitive avionics readings. Made me think about all the harnesses I've helped install over the last few months. I've always just followed the wiring diagram without really questioning the ground scheme. Now I'm wondering if some of those intermittent glitches we chased were actually from bad shielding practices. Has anyone else ran into this where the manual says one thing but the field experience says another on shield termination?
Spent my whole Saturday troubleshooting a radio issue that ended up being the test gear itself, not the aircraft. Anyone else get burned by cheap test equipment from online retailers?
I was stuck deciding between the Fluke 87V and the Brymen BM869s for my avionics bench setup. Ended up going with the Fluke because of the warranty support from the local supplier in Tucson. It's been about 4 months now and the peak hold has been super useful for catching intermittent signal drops on some older comm radios. The Brymen had better accuracy specs on paper but the Fluke just felt more solid in my hands during calibration checks. Anyone else run into this choice and pick the other one?
He was getting a reading of 5 ohms and thought it was shorted, but I had to explain that antennas aren't resistors and you can't just measure them like a wire - has anyone else seen people treat avionics gear like basic auto electric?
I was working on a 172 in the hangar last Tuesday and this old timer named Jerry came by. He saw me using my DMM on a PTT circuit and said I was wasting time checking resistance instead of voltage drop under load. He showed me how a 0.2 volt difference across a ground wire can cause all kinds of intermittent issues. Never thought about it that way before but now I check voltage drop first every time. Has anyone else switched up their troubleshooting approach after a tip like that?