Commuter has door come unlatched after takeoff. Return land.

Attributes
ACN	234385
Time
Date	199302
Day	Fri
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : msn
State Reference	WI
Altitude	agl bound lower : 0 agl bound upper : 100
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Small Transport, Low Wing, 2 Turboprop Eng
Flight Phase	climbout : takeoff
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : commercial
Experience	flight time last 90 days : 210 flight time total : 4300 flight time type : 1000
ASRS Report	234385
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : instrument pilot : cfi
Experience	flight time last 90 days : 250 flight time total : 1750 flight time type : 500
ASRS Report	234145
Events
Anomaly	non adherence : far other anomaly other
Independent Detector	other flight crewa
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Aft door came open upon takeoff. We then made an uneventful return for landing at madison. Other than a draft through the cabin, it was not a serious situation. Another airline has started working our passenger and baggage. They are not familiar with our operations, and double checks are overlooked since we are usually late. If we incorporated a full walk-around after all compartments were closed, it would have been noticed before taxi. The crew can do a hundred preflight checks, but if someone else opens a door and does not properly latch it, the crew has no control on a door we can't get to. These small but overlooked procedures seem to be a 'norm' at commuter airlines (at least ours). Supplemental information from acn 234145: contributing factors - - failure of first officer to assure complete latching of the door since there is no annunciator light to indicate an open door on the small transport.

Original NASA ASRS Text

Title: COMMUTER HAS DOOR COME UNLATCHED AFTER TKOF. RETURN LAND.

Narrative: AFT DOOR CAME OPEN UPON TKOF. WE THEN MADE AN UNEVENTFUL RETURN FOR LNDG AT MADISON. OTHER THAN A DRAFT THROUGH THE CABIN, IT WAS NOT A SERIOUS SIT. ANOTHER AIRLINE HAS STARTED WORKING OUR PAX AND BAGGAGE. THEY ARE NOT FAMILIAR WITH OUR OPS, AND DOUBLE CHKS ARE OVERLOOKED SINCE WE ARE USUALLY LATE. IF WE INCORPORATED A FULL WALK-AROUND AFTER ALL COMPARTMENTS WERE CLOSED, IT WOULD HAVE BEEN NOTICED BEFORE TAXI. THE CREW CAN DO A HUNDRED PREFLT CHKS, BUT IF SOMEONE ELSE OPENS A DOOR AND DOES NOT PROPERLY LATCH IT, THE CREW HAS NO CTL ON A DOOR WE CAN'T GET TO. THESE SMALL BUT OVERLOOKED PROCS SEEM TO BE A 'NORM' AT COMMUTER AIRLINES (AT LEAST OURS). SUPPLEMENTAL INFO FROM ACN 234145: CONTRIBUTING FACTORS - - FAILURE OF FO TO ASSURE COMPLETE LATCHING OF THE DOOR SINCE THERE IS NO ANNUNCIATOR LIGHT TO INDICATE AN OPEN DOOR ON THE SMT.

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.