A B737-700 flight crew experienced loss of pressurization system on takeoff roll. They diverted to a...

Attributes
ACN	801294
Time
Date	200808
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : bwi.tower
Operator	common carrier : air carrier
Make Model Name	B737-700
Operating Under FAR Part	Part 121
Flight Phase	ground : takeoff roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Experience	flight time last 90 days : 193 flight time type : 4000
ASRS Report	801294
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 188
ASRS Report	801296
Events
Anomaly	aircraft equipment problem : less severe
Independent Detector	aircraft equipment other aircraft equipment : master caution/acft press warning
Resolutory Action	flight crew : diverted to another airport
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

During the takeoff roll; between V1 and vr; we had a master caution light illuminate with an aircraft pressure warning. I continued to take off and at 1000 ft AGL we looked up and saw an amber 'automatic fail light' and a green 'alternate light' illuminated. We leveled off at 4000 ft as cleared by ATC and the captain got out the QRH. As we climbed to 10000 ft the cabin pressure was at approximately 1-2000 with about 4-5 differential (normal indications). We coordinated with ATC that we wanted to stop our climb and stay with them as our indications on the panel changed to just the amber automatic fail light and -- lines in both the altitude window and landing altitude window. The green alternate light was no longer illuminated. While holding; the captain coordinated with dispatch. We discussed the fact that we were at approximately 138000 pounds and the WX between us and ZZZ1 was VMC. We ended up diverting to ZZZ1 where we held for another 1/2 hour in order to land below 128000 pounds. Approach and landing were uneventful.

Original NASA ASRS Text

Title: A B737-700 FLT CREW EXPERIENCED LOSS OF PRESSURIZATION SYSTEM ON TAKEOFF ROLL. THEY DIVERTED TO A NEARBY AIRPORT AFTER BURNING OFF FUEL.

Narrative: DURING THE TKOF ROLL; BTWN V1 AND VR; WE HAD A MASTER CAUTION LIGHT ILLUMINATE WITH AN ACFT PRESSURE WARNING. I CONTINUED TO TAKE OFF AND AT 1000 FT AGL WE LOOKED UP AND SAW AN AMBER 'AUTO FAIL LIGHT' AND A GREEN 'ALTERNATE LIGHT' ILLUMINATED. WE LEVELED OFF AT 4000 FT AS CLRED BY ATC AND THE CAPT GOT OUT THE QRH. AS WE CLBED TO 10000 FT THE CABIN PRESSURE WAS AT APPROX 1-2000 WITH ABOUT 4-5 DIFFERENTIAL (NORMAL INDICATIONS). WE COORDINATED WITH ATC THAT WE WANTED TO STOP OUR CLB AND STAY WITH THEM AS OUR INDICATIONS ON THE PANEL CHANGED TO JUST THE AMBER AUTO FAIL LIGHT AND -- LINES IN BOTH THE ALT WINDOW AND LNDG ALT WINDOW. THE GREEN ALTERNATE LIGHT WAS NO LONGER ILLUMINATED. WHILE HOLDING; THE CAPT COORDINATED WITH DISPATCH. WE DISCUSSED THE FACT THAT WE WERE AT APPROX 138000 LBS AND THE WX BTWN US AND ZZZ1 WAS VMC. WE ENDED UP DIVERTING TO ZZZ1 WHERE WE HELD FOR ANOTHER 1/2 HR IN ORDER TO LAND BELOW 128000 LBS. APCH AND LNDG WERE UNEVENTFUL.

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.

A B737-700 flight crew experienced loss of pressurization system on takeoff roll. They diverted to a nearby airport after burning off fuel.