Someone asked a few weeks ago about the wisdom of connecting flights in Chicago during the Christmas holiday. I think I advised to take a more southern route if possible. At least I hope so.
We weren’t just delayed, we got creamed. The combined effects of freezing rain, ice pellets, snow, an unscheduled airplane swap, late connecting passengers, a computer crash, fueling mistake, air traffic control traffic backlog, a medical emergency, and a few thousand holiday travellers with all that stuff added up to a delay of almost five hours on our last flight of the night. Even before the necessary de-icing of the airplane before take-off.
When we finally arrived on scene at the destination the local weather was in aviation technical terms “dogshit”. The canine fecal designator for weather is a variable concept and largely dependant on the eqiuipment available and the qualifications of the crew.
We are well qualified and our equipment, although a bit on the rugged side, is quite effective and reliable.
Airline operations are required to have minimum visibility available before the approach to the airport can be started. The visibility was very near this minimum value. The precision of our approach monitoring equipment allows this with some additional restrictions.
Computers project the touchdown point of the airplane based on the ground speed and winds. If the flight path model predicted by the computers using wind data gathered during the approach is projected to be out of bounds the system will trigger an Approach Warning and the approach must be abandoned.
As in ZOOM, you thought we were landing, but now we ain’t. This is one of those things that we don’t do much and as a result causes stress and fatigue. It also uses about a ton (really) of fuel.
A decision to use a less precise category of approach mode after being warned off of the first approach is counter-intuitive. Our problem with the first approach was that the system was freaked out by the winds at about 500 feet. This is what caused the Approach Warning. A lesser crew wouldn’t have noticed this. If we had been much more tired we would have been a lesser crew.
The less precise approach mode would only allow a descent to 100 feet but with less fussy wind parameters. If the second approach had not been successful a diversion to our alternate airport would have been necessary.
Then, we would have been illegal to fly since our duty day was already more than 14 hours and everybody would have ended up in a city that we could all be dang sure they didn’t want to be in since they didn’t buy a ticket to go there.
My contribution to your happy and safe holiday was a fifteen hour workday and several approaches in weather you had no business trying to drive in. A thank you or merry Christmas might have been nice, but I understand.
Many in the traveling public have expressed an entitlement to transportation without delay and we all know that the airlines are graded on performance by the DOT.
What most people don’t know is that the Airline Employees grade passenger groups also. Here are this years Holiday Traveller Performance numbers. The number is a probability for encounter during the workday of Christmas Eve.
People wearing a backpack that seem to not know that it sticks out behind them….. 19
People in a bad mood because a flight is 20 minutes late departing but still in a bad mood when arriving on time …… 155
People overwhelmed by their own stroller operation…….6 per flight (average)
Number of surly old ladies insisting that someone had stolen her bag, delaying our departure ten minutes ……. 1
Number of bags of a different color belonging to surly old ladies that were found in the overhead bin at the next city ……. 1
Number of children that wouldn’t leave the cockpit so I could come in, sit down, and do pilot stuff …….. 4
Number of times my airplane was de-iced during a three day trip …… 14
Inches of ice accumulated on the airplane in about five minutes during descent ….2
How much we were bothered by it …… 0
The number of passengers that reported ice on the wings to the flight attendants … 3
Number of minutes I waited before turning on the wing heat, just for effect … 5
Percentage of people having a better time than circumstances might have otherwise indicated they should …… 77
Number of hours we waited on passengers that never showed up because they weren’t coming since the flight had diverted …. 2.5
Number of valued co-workers we chose to hold responsible for this ….. 1
Amount said valued co-worker seemed to really care about the delay ….. 0
Pages of reports required by this and other incidents …. 16
Probability that we did the best we could with what was available …… 88 to 98%
Happy Landings … 12