<< >> NASA ASRS Report 217755, July 1992

Medium large transport has smoke in cabin and cockpit. Starts emergency descent with ATC clearance and has TCASII RA. Levels until alert stops, continues descent.

Attributes
ACN	217755
Time
Date	199207
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : cha
State Reference	TN
Altitude	msl bound lower : 35000 msl bound upper : 35000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : ztl
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time total : 12000
ASRS Report	217755
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : less severe altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other
Independent Detector	other flight crewa other other : unspecified
Resolutory Action	flight crew : declared emergency other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

While en route at FL350 (VMC) we experienced smoke in the cabin and the cockpit. After continuing reports of heavy smoke in the cabin and after donning masks up front, I decided that a landing at the nearest suitable airport would be prudent. We chose chattanooga and commenced a descent, informing ZTL after the fact. They rogered our intention and cleared us to FL240 (I think). Somewhere in the descent, (I don't specifically recall the altitude) we received a RA from the TCASII. I stopped the descent until the alert ceased. We did not see the other aircraft nor were we alerted to him by ATC. I attribute the incident to our rushing too much in the cockpit. Had we slowed down and approached the problem methodically, we would have performed better. The problem turned out to be only oil leaking in an air conditioning pack.

Related reports:

• Medium large transport mode C indicating higher at ATC facil...
• PIC of an medium large transport sets cockpit up for a CAT I...
• Electrical fire and smoke in cockpit of medium large transpo...
• An medium large transport released from contract heavy maint...
• Medium large transport crew had smoke in cockpit.
• Medium large transport flight crew has aci inspector enter c...

	Enter your search terms Submit search form
	Web www.37000feet.com

Original NASA ASRS Text

Title: MLG HAS SMOKE IN CABIN AND COCKPIT. STARTS EMER DSCNT WITH ATC CLRNC AND HAS TCASII RA. LEVELS UNTIL ALERT STOPS, CONTINUES DSCNT.

Narrative: WHILE ENRTE AT FL350 (VMC) WE EXPERIENCED SMOKE IN THE CABIN AND THE COCKPIT. AFTER CONTINUING RPTS OF HVY SMOKE IN THE CABIN AND AFTER DONNING MASKS UP FRONT, I DECIDED THAT A LNDG AT THE NEAREST SUITABLE ARPT WOULD BE PRUDENT. WE CHOSE CHATTANOOGA AND COMMENCED A DSCNT, INFORMING ZTL AFTER THE FACT. THEY ROGERED OUR INTENTION AND CLRED US TO FL240 (I THINK). SOMEWHERE IN THE DSCNT, (I DON'T SPECIFICALLY RECALL THE ALT) WE RECEIVED A RA FROM THE TCASII. I STOPPED THE DSCNT UNTIL THE ALERT CEASED. WE DID NOT SEE THE OTHER ACFT NOR WERE WE ALERTED TO HIM BY ATC. I ATTRIBUTE THE INCIDENT TO OUR RUSHING TOO MUCH IN THE COCKPIT. HAD WE SLOWED DOWN AND APCHED THE PROBLEM METHODICALLY, WE WOULD HAVE PERFORMED BETTER. THE PROBLEM TURNED OUT TO BE ONLY OIL LEAKING IN AN AIR CONDITIONING PACK.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.