<< >> NASA ASRS Report 965546, August 2011

B737-400 captain reports cabin not pressurizing after takeoff with a loud noise around the forward entry door. No door warning lights illuminated. Flight diverts for maintenance.

Attributes
ACN	965546
Time
Date	201108
Local Time Of Day	0001-0600
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	B737-400
Operating Under FAR Part	Part 121
Flight Phase	Climb Initial Climb
Flight Plan	IFR
Person 1
Function	Captain Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

Aircraft would not pressurize after takeoff. Loud noise around fwd entry door. No lights were illuminated in cockpit. We flew in holding pattern to burn fuel to a legal landing weight. Capt contacted dispatch and they said to land in ZZZ2. We changed planes and continued to destination.

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Original NASA ASRS Text

Title: B737-400 Captain reports cabin not pressurizing after takeoff with a loud noise around the forward entry door. No door warning lights illuminated. Flight diverts for maintenance.

Narrative: Aircraft would not pressurize after takeoff. Loud noise around fwd entry door. No lights were illuminated in cockpit. We flew in holding pattern to burn fuel to a legal landing weight. Capt contacted Dispatch and they said to land in ZZZ2. We changed planes and continued to destination.

Data retrieved from NASA's ASRS site as of April 2012 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.