<< >> NASA ASRS Report 1120280, October 2013

Crj-200 flight crew reports being dispatched with a right pack deferral and medium large transport bay ovht deferral; with the ovht deferral requiring the medium large transport to be left down for 10 minutes after takeoff. After ten minutes; when the gear is selected up passing FL210; the left pack shuts down. An emergency descent is initiated and the flight returns to the departure airport.

Attributes
ACN	1120280
Time
Date	201310
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Environment
Light	Night
Aircraft 1
Make Model Name	Regional Jet 200 ER/LR (CRJ200)
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Component
Aircraft Component	Air Conditioning and Pressurization Pack
Person 1
Function	Captain Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	Pilot Flying First Officer
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

Had medium large transport bay overheat switch MEL; along with right pack deferred MEL. Took off complying with both MEL's. Swapped bleeds at three thousand feet; left gear down for ten minutes into climb for MEL. Climbing through FL210 went to put the gear up and simultaneously the left pack shut off with no fault. Saw pressure rising on EICAS. I took controls initiated emergency decent to 10;000 feet and declared emergency. Fist officer ran QRH procedures. Turned back to airport and landed with no further event. Contacted maintenance on ground.

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Original NASA ASRS Text

Title: CRJ-200 flight crew reports being dispatched with a R Pack deferral and MLG Bay OVHT deferral; with the OVHT deferral requiring the MLG to be left down for 10 minutes after takeoff. After ten minutes; when the gear is selected up passing FL210; the left pack shuts down. An emergency descent is initiated and the flight returns to the departure airport.

Narrative: Had MLG bay overheat switch MEL; along with right pack deferred MEL. Took off complying with both MEL's. Swapped bleeds at three thousand feet; left gear down for ten minutes into climb for MEL. Climbing through FL210 went to put the gear up and simultaneously the left pack shut off with no fault. Saw pressure rising on EICAS. I took controls initiated emergency decent to 10;000 feet and declared emergency. Fist Officer ran QRH procedures. Turned back to airport and landed with no further event. Contacted Maintenance on ground.

Data retrieved from NASA's ASRS site as of July 2013 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.