Air carrier large transport cargo door came open during icb. Return land.

Attributes
ACN	93614
Time
Date	198809
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : mco
State Reference	FL
Altitude	agl bound lower : 0 agl bound upper : 2000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : mco
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	climbout : takeoff
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 120 flight time total : 14000
ASRS Report	93614
Person 2
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : atp pilot : cfi pilot : flight engineer
Experience	flight time last 90 days : 80 flight time total : 6500 flight time type : 75
ASRS Report	94041
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa other other : unspecified
Resolutory Action	none taken : unable other
Consequence	other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Flight departed the gate on schedule and checklists were completed. The takeoff was accomplished on runway 18R by the first officer. Rotation was normal as was liftoff. At approximately 400', when flap retraction was started, an airframe vibration was felt. There were no cockpit indications to confirm the source of the vibration. The senior F/a told us that a passenger had seen the forward cargo compartment door open. The door light at the second officer panel was not illuminated. We leveled at 2000' and told ATC that we would be coming back to land, and requested the emergency equipment to stand by. The passenger were appraised of the situation and the in range checklist was accomplished. Approximately mid downwind leg the forward cargo door light came on. A normal landing and rollout was accomplished on runway 18R. The tower asked us to stop on the runway to let one of the emergency crew look at the open cargo compartment and door. We complied with their request. They tried to close the door, but could not. We taxied to the gate with the cargo door open.

Original NASA ASRS Text

Title: ACR LGT CARGO DOOR CAME OPEN DURING ICB. RETURN LAND.

Narrative: FLT DEPARTED THE GATE ON SCHEDULE AND CHKLISTS WERE COMPLETED. THE TKOF WAS ACCOMPLISHED ON RWY 18R BY THE F/O. ROTATION WAS NORMAL AS WAS LIFTOFF. AT APPROX 400', WHEN FLAP RETRACTION WAS STARTED, AN AIRFRAME VIBRATION WAS FELT. THERE WERE NO COCKPIT INDICATIONS TO CONFIRM THE SOURCE OF THE VIBRATION. THE SENIOR F/A TOLD US THAT A PAX HAD SEEN THE FORWARD CARGO COMPARTMENT DOOR OPEN. THE DOOR LIGHT AT THE S/O PANEL WAS NOT ILLUMINATED. WE LEVELED AT 2000' AND TOLD ATC THAT WE WOULD BE COMING BACK TO LAND, AND REQUESTED THE EMER EQUIP TO STAND BY. THE PAX WERE APPRAISED OF THE SITUATION AND THE IN RANGE CHKLIST WAS ACCOMPLISHED. APPROX MID DOWNWIND LEG THE FORWARD CARGO DOOR LIGHT CAME ON. A NORMAL LNDG AND ROLLOUT WAS ACCOMPLISHED ON RWY 18R. THE TWR ASKED US TO STOP ON THE RWY TO LET ONE OF THE EMER CREW LOOK AT THE OPEN CARGO COMPARTMENT AND DOOR. WE COMPLIED WITH THEIR REQUEST. THEY TRIED TO CLOSE THE DOOR, BUT COULD NOT. WE TAXIED TO THE GATE WITH THE CARGO DOOR OPEN.

Data retrieved from NASA's ASRS site as of August 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.