<< >> NASA ASRS Report 1137832, December 2013

HS125 flight crew experiences a loud thump from the rear of the cabin and a sudden loss of cabin pressurization. An emergency descent is initiated and the flight diverts to a suitable airport.

Attributes
ACN	1137832
Time
Date	201312
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	BAe 125 Series 800
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Component
Aircraft Component	Pressurization System
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	Pilot Not Flying First Officer
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

In cruise flight at FL350; we heard a loud thump/bang from the rear of the cabin. At this point we had a rapid decompression (2000 fpm plus). Proper checklists were followed to include an emergency descent. Passenger masks were manually deployed. Diverted to ZZZZ and had an overweight landing of 23;700 lbs. No damage was noted to exterior of aircraft upon landing.

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Original NASA ASRS Text

Title: HS125 flight crew experiences a loud thump from the rear of the cabin and a sudden loss of cabin pressurization. An emergency descent is initiated and the flight diverts to a suitable airport.

Narrative: In cruise flight at FL350; we heard a loud thump/bang from the rear of the cabin. At this point we had a rapid decompression (2000 fpm plus). Proper checklists were followed to include an emergency descent. Passenger masks were manually deployed. Diverted to ZZZZ and had an overweight landing of 23;700 lbs. No damage was noted to exterior of aircraft upon landing.

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.