|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||0601 To 1200|
|Locale Reference||airport : zzzz.airport|
|Altitude||msl single value : 34000|
|Controlling Facilities||artcc : zzzz.artcc|
|Operator||common carrier : air carrier|
|Make Model Name||B757-200|
|Operating Under FAR Part||Part 121|
|Flight Phase||cruise : level|
|Affiliation||company : air carrier|
|Function||flight crew : captain|
oversight : pic
|Affiliation||company : air carrier|
|Function||flight crew : first officer|
|Anomaly||aircraft equipment problem : critical|
non adherence : published procedure
|Independent Detector||aircraft equipment other aircraft equipment : eicas|
other flight crewa
other flight crewb
|Resolutory Action||flight crew : diverted to another airport|
flight crew : declared emergency
Normal departure and we were cleared on course. ATC cleared us to FL340. Aircraft restr to FL350 maximum because left bleed off and left pack off as per MEL. About 10 mins after leveloff; master warning activated along with cabin altitude alert on forward panel. Cabin altitude approximately 11000 ft. We immediately donned oxygen masks and did a communication check. We asked for lower from ATC and started a rapid descent to 10000 ft. We asked for and were cleared direct to ZZZ while completing the red box procedure for rapid depressurization and emergency descent. During descent; passing 17000 ft; we started the APU and put the left pack on line (per MEL). At this point; flight attendants reported some smoke in the cabin. We only smelled a light pungent odor in the cockpit but went ahead and completed the red box for cabin smoke. Before we completed the checklist they called to say the smoke had cleared. Clearance was received at this point to intercept final for runway 11 and cleared visual. We landed approximately 20 mins later and stopped on the runway so crash fire rescue equipment could examine the exterior to make sure there was no smoke coming from the aircraft. They determined that there was no smoke or fire; so we parked the aircraft and deplaned the passenger without further incident.
Original NASA ASRS Text
Title: B757-200 LOST CABIN PRESSURIZATION. EMER DESCENT WAS INITIATED AND FLT DIVERTED.
Narrative: NORMAL DEP AND WE WERE CLRED ON COURSE. ATC CLRED US TO FL340. ACFT RESTR TO FL350 MAX BECAUSE L BLEED OFF AND L PACK OFF AS PER MEL. ABOUT 10 MINS AFTER LEVELOFF; MASTER WARNING ACTIVATED ALONG WITH CABIN ALT ALERT ON FORWARD PANEL. CABIN ALT APPROX 11000 FT. WE IMMEDIATELY DONNED OXYGEN MASKS AND DID A COM CHK. WE ASKED FOR LOWER FROM ATC AND STARTED A RAPID DSCNT TO 10000 FT. WE ASKED FOR AND WERE CLRED DIRECT TO ZZZ WHILE COMPLETING THE RED BOX PROC FOR RAPID DEPRESSURIZATION AND EMER DSCNT. DURING DSCNT; PASSING 17000 FT; WE STARTED THE APU AND PUT THE L PACK ON LINE (PER MEL). AT THIS POINT; FLT ATTENDANTS RPTED SOME SMOKE IN THE CABIN. WE ONLY SMELLED A LIGHT PUNGENT ODOR IN THE COCKPIT BUT WENT AHEAD AND COMPLETED THE RED BOX FOR CABIN SMOKE. BEFORE WE COMPLETED THE CHKLIST THEY CALLED TO SAY THE SMOKE HAD CLRED. CLRNC WAS RECEIVED AT THIS POINT TO INTERCEPT FINAL FOR RWY 11 AND CLRED VISUAL. WE LANDED APPROX 20 MINS LATER AND STOPPED ON THE RWY SO CFR COULD EXAMINE THE EXTERIOR TO MAKE SURE THERE WAS NO SMOKE COMING FROM THE ACFT. THEY DETERMINED THAT THERE WAS NO SMOKE OR FIRE; SO WE PARKED THE ACFT AND DEPLANED THE PAX WITHOUT FURTHER INCIDENT.
Data retrieved from NASA's ASRS site as of May 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.