Sponsor Message:
Aviation Technical / Operations Forum
My Starred Topics | Profile | New Topic | Forum Index | Help | Search 
? About Aircraft Parked At Gate  
User currently offlineChi-town From United States of America, joined Sep 2000, 971 posts, RR: 5
Posted (10 years 8 months 5 days 11 hours ago) and read 4552 times:


View Large View Medium
Click here for bigger photo!

Photo © James Richard Covington, Jr



I see this all the time when I go to the airport and in pictures....What is that cable connected to the aircraft and the tug?

15 replies: All unread, jump to last
 
User currently offlineEMBQA From United States of America, joined Oct 2003, 9364 posts, RR: 11
Reply 1, posted (10 years 8 months 5 days 11 hours ago) and read 4508 times:

It's so the tug driver can talk with the cockpit while they are pushing the jet off the gate.


"It's not the size of the dog in the fight, but the size of the fight in the dog"
User currently offlineFlairport From , joined Dec 1969, posts, RR:
Reply 2, posted (10 years 8 months 5 days 11 hours ago) and read 4447 times:

jw... does the tug driver have connections to ground/tower as well. Is the cable disconnected before or after pushback?

User currently offlineAirplanepics From United Kingdom, joined Jun 2003, 2732 posts, RR: 40
Reply 3, posted (10 years 8 months 5 days 11 hours ago) and read 4414 times:

yes, they have connections to the tower to authorize movements ect.


Simon - London-Aviation.com
User currently offlineEMBQA From United States of America, joined Oct 2003, 9364 posts, RR: 11
Reply 4, posted (10 years 8 months 5 days 11 hours ago) and read 4373 times:

In many cases, if the flight crew is in the cockpit, they are the ones talking to Ground Control. When they have permission to push off the gate, they will tell the tug driver. Although in many airports, the areas around the gate are un-controlled and don't not require ATC permission to move. The cable is disconneced AFTER the aircraft has been pushed off the gate and is ready to taxing to the runway.


"It's not the size of the dog in the fight, but the size of the fight in the dog"
User currently offlineSlamclick From United States of America, joined Nov 2003, 10062 posts, RR: 68
Reply 5, posted (10 years 8 months 5 days 11 hours ago) and read 4334 times:

Now - picture yourself wearing that headset plugged into an airplane and walking in puddles alongside the airplane, with a thunderstorm approaching the field. You can see why they suspend pushbacks when lightning strikes are being taken in the airport area.



Happiness is not seeing another trite Ste. Maarten photo all week long.
User currently offlineN243NW From United States of America, joined Jul 2003, 1630 posts, RR: 20
Reply 6, posted (10 years 8 months 5 days 11 hours ago) and read 4316 times:

Is the cable disconnected before or after pushback?

After pushback, once the aircraft is on the taxiway and ready to move under its own power, the cable is disconnected after the towbar is taken off. If the cable were to be disconnected before pushback, the pilot would not know when to set and release the parking brake to prevent the a/c from moving (or refusing to move!) Also, the ground crew use the intercom to let the pilot know when the towbar is disconnected and it is safe to release the brakes and start to taxi, without fear of running over the ground crew or tug (or taking off with a towbar attached to the nosewheel! Laugh out loud) Cheers!
-N243NW Big grin

Edit: EMBQA beat me to it!

[Edited 2003-12-29 21:37:01]


B-52s don't take off. They scare the ground away.
User currently offlinePVD757 From United States of America, joined Aug 2003, 3412 posts, RR: 17
Reply 7, posted (10 years 8 months 5 days 11 hours ago) and read 4259 times:

EMBQA has it right.

That cable DOES NOT connect the push crew to the Tower. You have to be in the cockpit to talk to the tower and only flight crews, trained mechanics, or specifically authorized (trained) persons are allowed to contact the Tower for movements. That is how it is here at PVD anyway (and several other airports that I know of...BOS is one).


User currently offlineEMBQA From United States of America, joined Oct 2003, 9364 posts, RR: 11
Reply 8, posted (10 years 8 months 5 days 11 hours ago) and read 4197 times:

PVD-

BOS is even worse.... On many occasions I have been trying to MX taxi a plane off the gate to do engine run up's or move the plane to North Cargo, only to be told by ATC that they where too busy to take a Mx Taxi and we should just shut down and 'go home'...  Big grin



"It's not the size of the dog in the fight, but the size of the fight in the dog"
User currently offlineOPNLguy From , joined Dec 1969, posts, RR:
Reply 9, posted (10 years 8 months 5 days 9 hours ago) and read 4109 times:

>>>Is the cable disconnected before or after pushback?

I can recall one time that it was -never- disconnected.

True story. The airline and airports are changed to protect the guilty.  Big grin

It was a 2-person pushback crew, with one agent driving the tug (no headset) and the other agent acting as the wingwalker (with headset). After the aircraft stopped being pushed and set brakes, the wingwalker takes off the headset, hangs it on the open access door, and proceeds to the nose gear area so as to disconnect the towbar so the driver can pull away from the aircraft. They do so, and the wingwalker goes to the captain's side of the aircraft, and directs the aircraft into a left turn for taxiing.

You can guess what happened. The wingwalker forgot to get the headset hanging on the open access door, and the aircraft not only taxied out that way, they also took off! Shortly after takeoff, the crew radioed back that there were loud noises emmanating from the outside, just aft and below the F/O's seat. The aircraft made a precautionary landing at another airport about 70 miles away (underneath his route of flight to the original destination).

Lo and behold, the access door was open, and partially bent backwards from the airloads. The headset itself was gone (never did find it), and all that was left was about a 10-foot lenghth of cord where it was still plugged in. The noise the crew had heard was the cord flailing away at the outside of the fuselage.

Door was removed, inspections made, speedtape applied, and CDL applied, and flight left for original destination a little tardy. Offending ramp agent at the original departure airport was flogged (not really, but 2-weeks off w/o pay).


User currently offlineTom in NO From United States of America, joined Nov 1999, 7194 posts, RR: 33
Reply 10, posted (10 years 8 months 5 days 8 hours ago) and read 4033 times:

"jw... does the tug driver have connections to ground/tower as well"
"yes, they have connections to the tower to authorize movements ect."

The connection is to the aircraft itself. At least in the US, tug drivers do not have a direct link to the tower. That communication is performed from the cockpit itself. It would be redundant anyway. When an aicraft is being towed, someone is up in the cockpit riding the brakes, that someone already having radio contact with the tower.

Tom at MSY



"The criminal ineptitude makes you furious"-Bruce Springsteen, after seeing firsthand the damage from Hurricane Katrina
User currently offlineElwood64151 From United States of America, joined Feb 2002, 2477 posts, RR: 6
Reply 11, posted (10 years 8 months 5 days 6 hours ago) and read 3929 times:

does the tug driver have connections to ground/tower as well

Actually, in very limited circumstances, they are. At MCI, just prior to 9/11, when taxiing an aircraft on active, movement-area taxiways, our tug drivers at NJ were required to have radio communication with the tower. I believe this was required of all airlines, but I do not know that for certain.

In any event, it severely hampered our ability to tow our aircraft to the holding area near A & B terminals, since the approach to the parking areas is from the Movement Area. Only by backing in to the hold could our guys park the planes until seven of them went through training for ground-tower communications.

Now - picture yourself wearing that headset plugged into an airplane and walking in puddles alongside the airplane, with a thunderstorm approaching the field. You can see why they suspend pushbacks when lightning strikes are being taken in the airport area.

Most airlines just go to hand-signals...

After the aircraft stopped being pushed and set brakes, the wingwalker takes off the headset, hangs it on the open access door

That has to be a violation of SOPs... You should never disconnect your communications with the crew until you have completely disconnected the aircraft from everything else.



Those who fail to learn history are doomed to repeat it in summer school.
User currently offlineUAL Bagsmasher From United States of America, joined Sep 1999, 2146 posts, RR: 10
Reply 12, posted (10 years 8 months 4 days 6 hours ago) and read 3723 times:

Speaking about the lightening/pushback issue. From what I understand, we had a mechanic at ORD that got a little "jumpstart" after lightening struck the aircraft and went through his headset to ground. That would ruin anyone's day. I heard he lived to tell about it.

User currently offlineHa763 From United States of America, joined Jan 2003, 3655 posts, RR: 5
Reply 13, posted (10 years 8 months 4 days 3 hours ago) and read 3677 times:
Support Airliners.net - become a First Class Member!

From my ramp license study guide:

"Any vehicle at a controlled airport which requires access to any portion of the operational area such as taxiways, runways, and safety areas which are beyond the red demarcation lines painted on the ramp service area, shall be in two-way radio contact with the air traffic control tower or shall be escorted by a vehicle with this capability."

About operating during thunderstorms. It wouldn't matter if you are plugged in or using hand signals. You can get hit by lightening either way. It just isn't safe to be out in the open during a thunderstorm. Plus, water conducts electricity.


User currently offlineMusang From United Kingdom, joined Apr 2001, 864 posts, RR: 7
Reply 14, posted (10 years 8 months 3 days 12 hours ago) and read 3584 times:

OPNLguy - Saw something similar. I was sitting by the window in the UA terminal at ORD a couple of years ago and a 737 taxied in with the cable trailing from the access panel. The connector was still on the end of it, and the impact point was the fuselage side/wing root area.

Over here in Europe several airports require that the tug crews call ATC for pushback clearance. We get start clearance, tell the tug we're ready to push and they do the rest.

Even when this isn't the case, many tugs have radios so they can co-ordinate aircraft repositions, so the ground crew riding the brakes doesn't have to use the aircraft's radio. They often monitor the ground frequency all the time anyway.

Regards - Musang


User currently offlineNecigrad From United States of America, joined Sep 2001, 183 posts, RR: 0
Reply 15, posted (10 years 8 months 2 days 18 hours ago) and read 3503 times:

Ha763, here in Vegas it's the same, HOWEVER, I think you're misinterpreting it. If you are going to be in the movement area you need permission at the least. To cross a taxiway to get to a hold pad, a call to the tower would suffice. I've heard the "Cleard a requested, yield to all other aircraft and vehicles" when going out to a remote pad. If you're a tug driver towing a plane, you have two way contact. The brake rider is the middle man.

Top Of Page
Forum Index

Reply To This Topic ? About Aircraft Parked At Gate
Username:
No username? Sign up now!
Password: 


Forgot Password? Be reminded.
Remember me on this computer (uses cookies)
  • Tech/Ops related posts only!
  • Not Tech/Ops related? Use the other forums
  • No adverts of any kind. This includes web pages.
  • No hostile language or criticizing of others.
  • Do not post copyright protected material.
  • Use relevant and describing topics.
  • Check if your post already been discussed.
  • Check your spelling!
  • DETAILED RULES
Add Images Add SmiliesPosting Help

Please check your spelling (press "Check Spelling" above)


Similar topics:More similar topics...
Tell Me About Aircraft Batteries.. posted Sun Nov 12 2006 06:04:24 by N234NW
De-icing At Gate posted Sat Dec 10 2005 22:17:46 by Pilatusguy
Technical Information About Aircraft Skins posted Sun Sep 18 2005 03:33:52 by Zone1
Light Operations At Gate And After Landing posted Thu Jul 8 2004 06:43:09 by KBUF737
Per-hour Aircraft Prices At Your Local posted Fri Jun 11 2004 11:44:10 by UTA_flyingHIGH
Windmilling Of Engines While Aircraft Parked posted Mon Jan 19 2004 13:25:07 by HAWK21M
About ICAO, Jobs At Icao posted Tue Dec 17 2002 09:39:58 by Kay
Why Are Airbus Aircraft Ugly At The Back?! posted Tue Aug 28 2001 14:25:14 by Singapore_Air
Aircraft Towed Into Gate posted Sun Feb 18 2001 20:28:51 by Modesto2
Questions About Aircraft Radios posted Sun Jun 4 2000 04:57:44 by Koala

Sponsor Message:
Printer friendly format