An A319 crew experienced a double engine bleed failure causing loss of pressurization. An emergency ...

Narrative:

We were conducting a maintenance ferry flight under part 91 for an unrelated problem with deadheading crew members and a technician on board. Right after takeoff; we had an 'air bleed #1' fault. First officer continued to fly airplane as we complied with ECAM actions. After bleed temperature cooled; we selected the #1 bleed back on and the temperature climbed again and faulted. Again; we complied with ECAM actions. After climbing through 10000 ft; we contacted maintenance and were advised to follow procedures and verified with them that no altitude restrs exist in this situation. We continued the climb and leveled off at FL380. Within a few mins of leveloff; we had an 'air bleed #2' fault. We complied with ECAM actions and donned oxygen masks. We then coordination an emergency descent with ATC; started down; declared an emergency and requested vectors back to ZZZZ. We proceeded to turn bleed #1 back on in order to maintain pressurization. It later faulted; we followed ECAM and then re-selected bleed #2. In the meantime; we were concerned that the cabin would climb at a fairly rapid rate and advised deadheading crew members to don oxygen masks in preparation. Since the cabin altitude wasn't over 10000 ft yet; the masks hadn't dropped (cabin altitude ht was +9000 ft). We were advised that masks were not yet down and we were not confident that bleed #2 would stay on. So I looked up to find manual switch for oxygen; was distraction with ATC; looked back up and accidentally deployed the ram air turbine instead. After realizing my mistake; I made a conscious effort to slow down a little and elected not to deploy the masks unless the cabin exceeded 10000 ft and the automatic feature didn't kick in. (Cabin altitude never reached 10000 ft.) we continued to ZZZZ and landed safely with bleed #1 off and bleed #2 on. We were impressed with how tight the cabin was and how the cabin maintained a fairly low climb rate even with both bleeds off.

Original NASA ASRS Text

Title: AN A319 CREW EXPERIENCED A DOUBLE ENG BLEED FAILURE CAUSING LOSS OF PRESSURIZATION. AN EMER WAS DECLARED AND THE CREW RETURNED TO DEP ARPT FOLLOWING AN EMER DSCNT.

Narrative: WE WERE CONDUCTING A MAINT FERRY FLT UNDER PART 91 FOR AN UNRELATED PROB WITH DEADHEADING CREW MEMBERS AND A TECHNICIAN ON BOARD. RIGHT AFTER TKOF; WE HAD AN 'AIR BLEED #1' FAULT. FO CONTINUED TO FLY AIRPLANE AS WE COMPLIED WITH ECAM ACTIONS. AFTER BLEED TEMP COOLED; WE SELECTED THE #1 BLEED BACK ON AND THE TEMP CLBED AGAIN AND FAULTED. AGAIN; WE COMPLIED WITH ECAM ACTIONS. AFTER CLBING THROUGH 10000 FT; WE CONTACTED MAINT AND WERE ADVISED TO FOLLOW PROCS AND VERIFIED WITH THEM THAT NO ALT RESTRS EXIST IN THIS SIT. WE CONTINUED THE CLB AND LEVELED OFF AT FL380. WITHIN A FEW MINS OF LEVELOFF; WE HAD AN 'AIR BLEED #2' FAULT. WE COMPLIED WITH ECAM ACTIONS AND DONNED OXYGEN MASKS. WE THEN COORD AN EMER DSCNT WITH ATC; STARTED DOWN; DECLARED AN EMER AND REQUESTED VECTORS BACK TO ZZZZ. WE PROCEEDED TO TURN BLEED #1 BACK ON IN ORDER TO MAINTAIN PRESSURIZATION. IT LATER FAULTED; WE FOLLOWED ECAM AND THEN RE-SELECTED BLEED #2. IN THE MEANTIME; WE WERE CONCERNED THAT THE CABIN WOULD CLB AT A FAIRLY RAPID RATE AND ADVISED DEADHEADING CREW MEMBERS TO DON OXYGEN MASKS IN PREPARATION. SINCE THE CABIN ALT WASN'T OVER 10000 FT YET; THE MASKS HADN'T DROPPED (CABIN ALT HT WAS +9000 FT). WE WERE ADVISED THAT MASKS WERE NOT YET DOWN AND WE WERE NOT CONFIDENT THAT BLEED #2 WOULD STAY ON. SO I LOOKED UP TO FIND MANUAL SWITCH FOR OXYGEN; WAS DISTR WITH ATC; LOOKED BACK UP AND ACCIDENTALLY DEPLOYED THE RAM AIR TURBINE INSTEAD. AFTER REALIZING MY MISTAKE; I MADE A CONSCIOUS EFFORT TO SLOW DOWN A LITTLE AND ELECTED NOT TO DEPLOY THE MASKS UNLESS THE CABIN EXCEEDED 10000 FT AND THE AUTO FEATURE DIDN'T KICK IN. (CABIN ALT NEVER REACHED 10000 FT.) WE CONTINUED TO ZZZZ AND LANDED SAFELY WITH BLEED #1 OFF AND BLEED #2 ON. WE WERE IMPRESSED WITH HOW TIGHT THE CABIN WAS AND HOW THE CABIN MAINTAINED A FAIRLY LOW CLB RATE EVEN WITH BOTH BLEEDS OFF.

Data retrieved from NASA's ASRS site as of January 2009 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.

Attributes
ACN	659848
Time
Date	200506
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzzz.airport
State Reference	FO
Altitude	msl single value : 10000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zzzz.artcc
Operator	common carrier : air carrier
Make Model Name	A319
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
ASRS Report	659848
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : ecam
Resolutory Action	flight crew : landed in emergency condition flight crew : declared emergency other
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

An A319 crew experienced a double engine bleed failure causing loss of pressurization. An emergency was declared and the crew returned to departure airport following an emergency descent.