A B737-300 flight crew descended from altitude and diverted to a nearby airport when the pressurizat...

Attributes
ACN	1159362
Time
Date	201403
Local Time Of Day	0601-1200
Place
Locale Reference	ZSE.ARTCC
State Reference	WA
Environment
Flight Conditions	Mixed
Light	Night
Aircraft 1
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Component
Aircraft Component	Pressurization System
Person 1
Function	Captain Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 266
Person 2
Function	Pilot Flying First Officer
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Hazardous Material Violation Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor

Narrative:

Climbing through fl 310 to a cruise altitude fl 350; we received cabin altitude visual and aural warnings. We executed the memory items and completed the QRH. I requested a descent to a lower altitude and continued to assess the situation. While coordinating with dispatch via ACARS and radio patch; the forward lavatory smoke alarm began to sound. There was no smoke or odor in the cockpit and I asked the flight attendants to check the condition of the lav. They reported no smoke present. We were carrying a wet battery filled with alkali in the baggage compartment and; given the situation; elected to divert and land as soon as possible. I coordinated the diversion with dispatch and ATC.

Original NASA ASRS Text

Title: A B737-300 flight crew descended from altitude and diverted to a nearby airport when the pressurization system malfunctioned and; during their descent and diversion they received a forward lavatory fire indication that; although evidence of a fire couldn't be verified; caused them to declare an emergency and request CFR to standby.

Narrative: Climbing through FL 310 to a cruise altitude FL 350; we received cabin altitude visual and aural warnings. We executed the memory items and completed the QRH. I requested a descent to a lower altitude and continued to assess the situation. While coordinating with Dispatch via ACARS and radio patch; the forward lavatory smoke alarm began to sound. There was no smoke or odor in the cockpit and I asked the flight attendants to check the condition of the lav. They reported no smoke present. We were carrying a wet battery filled with alkali in the baggage compartment and; given the situation; elected to divert and land as soon as possible. I coordinated the diversion with Dispatch and ATC.

Data retrieved from NASA's ASRS site 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.