FlyChicaga
Well-known member
- Joined
- Mar 23, 2002
- Posts
- 862
I particularly like this story, strictly because of a few passengers' reactions after the flight.
We were flying the terminator flight one night. We had been given a different routing that evening due to some icing reports on the normal plan. The flight ran fairly smooth for the most part, up until approach. During climbout, we quickly emerged from some low clouds at the hub and were out of the ice and IMC in clear skies for our entire time in cruise.
Coming into the airport, we didn't hit the clouds until around 7000 feet or so, which wasn't so bad. Some light rime ice, occasional light chop. Pulling up ATIS at the destination we found that weather was being reported as 600 overcast, 2 miles visibility, and light snow. Eh, not too bad. We were expecting an ILS approach to the northeast.
When we checked in with approach, we were given a descent to 4000 feet and a vector for the localizer only approach. Apparently a Delta MD-88 crew has to go missed due to an intermittent glideslope, so they were now using the LOC only. Still ok for the weather, since the MDA was just over 450 feet AFL, and visibility was above minimums. However, this active runway did not have any aids to assist in vertical guidance (VASI, PAPI, G/S, etc.). Not a large concern, but it would have been nice at night after flying a non-precision approach to near minimums.
As we descended to 4000 feet, we noticed the outside air temperature had risen to +7 C. Interesting! We looked outside, and the light to moderate rime was completely gone. A definitely plus. Now, a descent to 3000 feet, update on the weather: Still 600 overcast, 2 1/2 miles visibility, light snow. Delta just landed and are clear, so the runway is ours.
As we descended to 3000 feet, the turbulence began. Moderate. I put my hands on the controls just in case of an autopilot disconnect, since it was getting fairly rough. Eh, maybe it was getting somewhat severe. I was quickly slowing to our Vra speed for the jolts we were feeling, and turned up my EFIS displays and instrument lighting to help me see the indications. The rough air was making it difficult to focus. We did see shear indications +/- 20 knots. Now, 3 miles to the FAF.
As we were closing in on the FAF, we noticed the temperature was now -2 C. That was quite a shift from the +7 C at 4000 feet... a 9 degree shift in a 1000 foot descent. Looking outside, the light rime... well mixed ice was there now. Bump to level 3 again (engine A/I and the boots).
At the FAF, we continued with the approach as normal down to MDA. At about 2700 feet, the turbulence we had experience smoothed out to light. Thank goodness. Soon we broke out, leveled at MDA, and picked up the runway ahead. "Leaving MDA, flaps 20, landing checklist." After that wild ride, I was able to finish it off with a smooth landing on the snow-covered runway. (Honestly, the airplane just kinda stopped flying and layed itself nicely in the touchdown zone.)
On the taxi in, I mentioned how it seemed the boots didn't get much of that ice off, and we'd certainly need to deice in the morning (since we were doing a continuous-duty overnight). Little did I know.
Before the passengers could deplane, I hopped out to attach the prop ties, and check out the ice that was left. Well, to my surprise, it was no light ice. In fact, it was some serious ice. Ice 1/2 inch thick on the leading edge of the prop at the hub, decreasing to maybe 1/8-1/4 inch thick 3/4 the length of the prop. 3 inches of thin runback on the prop past the boots. Rough clear ice from the nose back to the AOA indicators and windscreens. Ice nearly a foot behind the wing deicing boots. Ice the entire length of the spinner. Practically every leading edge of anything had ice on it. A major chill ran down my spine.
As I went to the stairs to notify the Captain of my findings, the passengers were on their way out. Nobody really said much, besides a "the boots doing their job tonight?" and a "that was quite a ride." Then a woman came down the stairs, breaking the silence: "Son, were you the pilot?" "Yes ma'am, I was" I said. "Honey, the angels were with you tonight. You are quite a pilot. Those angels were watching you." I could just smile. What could I say?
Then I notice another woman in the doorway, shaking hands with the F/A and Captain. She makes her way down the stairs, and without a word, just walks up with open arms and hugs me tight. She mentioned a similar comment about the angels watching me, then went on her way.
All in all, quite a night. Too bad I didn't have more time to sleep it off, since 5 hours later we'd be back out for another flight.
Well, the next morning, we prepared the ice-covered machine as normal. Preflight, systems checks, hot jugs, and engine start-up to warm up the cabin. After startup, we notice a slight vibration from the engine. Must be that ice on the props. Some must have come off, causing a slight unbalance. Noted. They'll need to hit the props with some extra fluid once we get to the deicing pad. (Note: No gate deicing available. Airport ordinance, since the fluid gets in the water system.)
Once the passengers get boarded up, and we finish our flight paperwork, we start number 1. Same slight vibration. So as the Captain brings the condition lever into min-max (low pitch) on the number 2, the engine vibration gets very excessive. Serious vibrations which we immediately know is NOT good for the aircraft, so condition lever to fuel off. Nope, this is not going to work.
To make a long story short, we had to barter for a towbar of unknown existance, hidden in a maintenance hangar. It took negotiations with six different airlines to finally find one. It was our only solution: A tow to the deice pad to rid the airplane of the remaining ice from the night previous, and the current freezing rain which moved in during our delay. About four or more hours later, the freezing rain made it's way out of the area, we had a clean airplane, and we were able to depart for home.
Maybe those women were right. The angels were with us. It was quite a learning experience, to say the least. Thinking back, I should have known what would have happened with that inversion, but at the time getting knocked around in the turbulence it didn't occur to me. We were too busy flying. Plus, looking outside, we had no reason to think otherwise.
We were flying the terminator flight one night. We had been given a different routing that evening due to some icing reports on the normal plan. The flight ran fairly smooth for the most part, up until approach. During climbout, we quickly emerged from some low clouds at the hub and were out of the ice and IMC in clear skies for our entire time in cruise.
Coming into the airport, we didn't hit the clouds until around 7000 feet or so, which wasn't so bad. Some light rime ice, occasional light chop. Pulling up ATIS at the destination we found that weather was being reported as 600 overcast, 2 miles visibility, and light snow. Eh, not too bad. We were expecting an ILS approach to the northeast.
When we checked in with approach, we were given a descent to 4000 feet and a vector for the localizer only approach. Apparently a Delta MD-88 crew has to go missed due to an intermittent glideslope, so they were now using the LOC only. Still ok for the weather, since the MDA was just over 450 feet AFL, and visibility was above minimums. However, this active runway did not have any aids to assist in vertical guidance (VASI, PAPI, G/S, etc.). Not a large concern, but it would have been nice at night after flying a non-precision approach to near minimums.
As we descended to 4000 feet, we noticed the outside air temperature had risen to +7 C. Interesting! We looked outside, and the light to moderate rime was completely gone. A definitely plus. Now, a descent to 3000 feet, update on the weather: Still 600 overcast, 2 1/2 miles visibility, light snow. Delta just landed and are clear, so the runway is ours.
As we descended to 3000 feet, the turbulence began. Moderate. I put my hands on the controls just in case of an autopilot disconnect, since it was getting fairly rough. Eh, maybe it was getting somewhat severe. I was quickly slowing to our Vra speed for the jolts we were feeling, and turned up my EFIS displays and instrument lighting to help me see the indications. The rough air was making it difficult to focus. We did see shear indications +/- 20 knots. Now, 3 miles to the FAF.
As we were closing in on the FAF, we noticed the temperature was now -2 C. That was quite a shift from the +7 C at 4000 feet... a 9 degree shift in a 1000 foot descent. Looking outside, the light rime... well mixed ice was there now. Bump to level 3 again (engine A/I and the boots).
At the FAF, we continued with the approach as normal down to MDA. At about 2700 feet, the turbulence we had experience smoothed out to light. Thank goodness. Soon we broke out, leveled at MDA, and picked up the runway ahead. "Leaving MDA, flaps 20, landing checklist." After that wild ride, I was able to finish it off with a smooth landing on the snow-covered runway. (Honestly, the airplane just kinda stopped flying and layed itself nicely in the touchdown zone.)
On the taxi in, I mentioned how it seemed the boots didn't get much of that ice off, and we'd certainly need to deice in the morning (since we were doing a continuous-duty overnight). Little did I know.
Before the passengers could deplane, I hopped out to attach the prop ties, and check out the ice that was left. Well, to my surprise, it was no light ice. In fact, it was some serious ice. Ice 1/2 inch thick on the leading edge of the prop at the hub, decreasing to maybe 1/8-1/4 inch thick 3/4 the length of the prop. 3 inches of thin runback on the prop past the boots. Rough clear ice from the nose back to the AOA indicators and windscreens. Ice nearly a foot behind the wing deicing boots. Ice the entire length of the spinner. Practically every leading edge of anything had ice on it. A major chill ran down my spine.
As I went to the stairs to notify the Captain of my findings, the passengers were on their way out. Nobody really said much, besides a "the boots doing their job tonight?" and a "that was quite a ride." Then a woman came down the stairs, breaking the silence: "Son, were you the pilot?" "Yes ma'am, I was" I said. "Honey, the angels were with you tonight. You are quite a pilot. Those angels were watching you." I could just smile. What could I say?
Then I notice another woman in the doorway, shaking hands with the F/A and Captain. She makes her way down the stairs, and without a word, just walks up with open arms and hugs me tight. She mentioned a similar comment about the angels watching me, then went on her way.
All in all, quite a night. Too bad I didn't have more time to sleep it off, since 5 hours later we'd be back out for another flight.
Well, the next morning, we prepared the ice-covered machine as normal. Preflight, systems checks, hot jugs, and engine start-up to warm up the cabin. After startup, we notice a slight vibration from the engine. Must be that ice on the props. Some must have come off, causing a slight unbalance. Noted. They'll need to hit the props with some extra fluid once we get to the deicing pad. (Note: No gate deicing available. Airport ordinance, since the fluid gets in the water system.)
Once the passengers get boarded up, and we finish our flight paperwork, we start number 1. Same slight vibration. So as the Captain brings the condition lever into min-max (low pitch) on the number 2, the engine vibration gets very excessive. Serious vibrations which we immediately know is NOT good for the aircraft, so condition lever to fuel off. Nope, this is not going to work.
To make a long story short, we had to barter for a towbar of unknown existance, hidden in a maintenance hangar. It took negotiations with six different airlines to finally find one. It was our only solution: A tow to the deice pad to rid the airplane of the remaining ice from the night previous, and the current freezing rain which moved in during our delay. About four or more hours later, the freezing rain made it's way out of the area, we had a clean airplane, and we were able to depart for home.
Maybe those women were right. The angels were with us. It was quite a learning experience, to say the least. Thinking back, I should have known what would have happened with that inversion, but at the time getting knocked around in the turbulence it didn't occur to me. We were too busy flying. Plus, looking outside, we had no reason to think otherwise.