Aircraft equipment problem. Electronics compartment door open in-flight with no warning light. Unabl...

Attributes
ACN	336392
Time
Date	199605
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : cle
State Reference	OH
Altitude	msl bound lower : 5000 msl bound upper : 5000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : cle artcc : zdv
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	climbout : initial climbout : takeoff ground : preflight
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 11000 flight time type : 3500
ASRS Report	336392
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 10000 flight time type : 4000
ASRS Report	336388
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

The aircraft would not pressurize after departure. We found the cause was the 'electronics compartment door' light was on. This required a return to cleveland to correct the problem. The first officer and I both had performed an outside inspection at different times because of 2 hours ground time between legs. The electronics door was not observed to be open at the time these inspections were made. These inspections were accomplished prior to maintenance completing their work on the aircraft. When they finished, they signed the log indicating the work was complete and the aircraft was airworthy. Prior to push, the ramp agent informed us via head set that his inspection was complete and all doors and panels were closed. The electronics door light was not on at this time. The annunciator panel was checked several times in the process of performing after start and taxi checklist and the electronics door open light was not on. When I checked the annunciator panel before takeoff, there were 2 lights on. They were: 1) the 'APU generator off' light, and 2) the 'rudder travel unrestr' light. The 'electronic compartment door' light was not on. If the east&east door was not secured in the closed position the light on the annunciator panel should have been on. It was not. How this could happen I do not know. Supplemental information from acn 336388: during after takeoff checklist, found east&east door light on indicating east&east door not closed.

Original NASA ASRS Text

Title: ACFT EQUIP PROB. ELECTRONICS COMPARTMENT DOOR OPEN INFLT WITH NO WARNING LIGHT. UNABLE TO PRESSURIZE ACFT. FLC RETURN LAND.

Narrative: THE ACFT WOULD NOT PRESSURIZE AFTER DEP. WE FOUND THE CAUSE WAS THE 'ELECTRONICS COMPARTMENT DOOR' LIGHT WAS ON. THIS REQUIRED A RETURN TO CLEVELAND TO CORRECT THE PROB. THE FO AND I BOTH HAD PERFORMED AN OUTSIDE INSPECTION AT DIFFERENT TIMES BECAUSE OF 2 HRS GND TIME BTWN LEGS. THE ELECTRONICS DOOR WAS NOT OBSERVED TO BE OPEN AT THE TIME THESE INSPECTIONS WERE MADE. THESE INSPECTIONS WERE ACCOMPLISHED PRIOR TO MAINT COMPLETING THEIR WORK ON THE ACFT. WHEN THEY FINISHED, THEY SIGNED THE LOG INDICATING THE WORK WAS COMPLETE AND THE ACFT WAS AIRWORTHY. PRIOR TO PUSH, THE RAMP AGENT INFORMED US VIA HEAD SET THAT HIS INSPECTION WAS COMPLETE AND ALL DOORS AND PANELS WERE CLOSED. THE ELECTRONICS DOOR LIGHT WAS NOT ON AT THIS TIME. THE ANNUNCIATOR PANEL WAS CHKED SEVERAL TIMES IN THE PROCESS OF PERFORMING AFTER START AND TAXI CHKLIST AND THE ELECTRONICS DOOR OPEN LIGHT WAS NOT ON. WHEN I CHKED THE ANNUNCIATOR PANEL BEFORE TKOF, THERE WERE 2 LIGHTS ON. THEY WERE: 1) THE 'APU GENERATOR OFF' LIGHT, AND 2) THE 'RUDDER TRAVEL UNRESTR' LIGHT. THE 'ELECTRONIC COMPARTMENT DOOR' LIGHT WAS NOT ON. IF THE E&E DOOR WAS NOT SECURED IN THE CLOSED POS THE LIGHT ON THE ANNUNCIATOR PANEL SHOULD HAVE BEEN ON. IT WAS NOT. HOW THIS COULD HAPPEN I DO NOT KNOW. SUPPLEMENTAL INFO FROM ACN 336388: DURING AFTER TKOF CHKLIST, FOUND E&E DOOR LIGHT ON INDICATING E&E DOOR NOT CLOSED.

Data retrieved from NASA's ASRS site as of July 2007 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.

Aircraft equipment problem. Electronics compartment door open in-flight with no warning light. Unable to pressurize aircraft. Flight crew return land.