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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Aircraft would not pressurize after takeoff. Returned to mke to investigate and found aft cargo door open. Aft cargo door warning light out. B737 has problem with design on door warning housing being damaged by cargo loading. It is not reinforced enough to withstand housing being hit by cargo baggage handlers. The reporter believes a redesign is necessary. He could cause aft cargo door warning light to go on or off by moving the housing with his hand.
| Attributes | |
| ACN | 331664 |
| Time | |
| Date | 199603 |
| Day | Wed |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : mke |
| State Reference | WI |
| Altitude | msl bound lower : 1500 msl bound upper : 1500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : mke |
| Operator | common carrier : air carrier |
| Make Model Name | B737-400 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : atp pilot : flight engineer pilot : instrument |
| Experience | flight time last 90 days : 160 flight time total : 18000 flight time type : 3600 |
| ASRS Report | 331664 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa other other : unspecified |
| Resolutory Action | flight crew : declared emergency none taken : unable other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
Approximately 1500 ft MSL pressurization loss. Return to mke to investigate. Found aft cargo door open. Aft cargo warning light out in cockpit. B737 has problem with design on door warning housing being damaged by cargo loading. It is not reinforced (strong enough to withstand housing being hit by cargo/baggage handlers). My company has a procedure to check light while baggage is loaded. This procedure does not ensure door is closed since warning light housing can be damaged anytime during loading operation. A redesign is necessary in my opinion. I could cause aft cargo light to go on or off by moving housing with my hand.
Original NASA ASRS Text
Title: ACFT WOULD NOT PRESSURIZE AFTER TKOF. RETURNED TO MKE TO INVESTIGATE AND FOUND AFT CARGO DOOR OPEN. AFT CARGO DOOR WARNING LIGHT OUT. B737 HAS PROB WITH DESIGN ON DOOR WARNING HOUSING BEING DAMAGED BY CARGO LOADING. IT IS NOT REINFORCED ENOUGH TO WITHSTAND HOUSING BEING HIT BY CARGO BAGGAGE HANDLERS. THE RPTR BELIEVES A REDESIGN IS NECESSARY. HE COULD CAUSE AFT CARGO DOOR WARNING LIGHT TO GO ON OR OFF BY MOVING THE HOUSING WITH HIS HAND.
Narrative: APPROX 1500 FT MSL PRESSURIZATION LOSS. RETURN TO MKE TO INVESTIGATE. FOUND AFT CARGO DOOR OPEN. AFT CARGO WARNING LIGHT OUT IN COCKPIT. B737 HAS PROB WITH DESIGN ON DOOR WARNING HOUSING BEING DAMAGED BY CARGO LOADING. IT IS NOT REINFORCED (STRONG ENOUGH TO WITHSTAND HOUSING BEING HIT BY CARGO/BAGGAGE HANDLERS). MY COMPANY HAS A PROC TO CHK LIGHT WHILE BAGGAGE IS LOADED. THIS PROC DOES NOT ENSURE DOOR IS CLOSED SINCE WARNING LIGHT HOUSING CAN BE DAMAGED ANYTIME DURING LOADING OP. A REDESIGN IS NECESSARY IN MY OPINION. I COULD CAUSE AFT CARGO LIGHT TO GO ON OR OFF BY MOVING HOUSING WITH MY HAND.
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.