<< >> NASA ASRS Report 840495, June 2009

A C402 pilot reported the upper passenger door's upper section opened in flight with no prior warning. The reporter recommended a redesign of the door and/or warning system.

Attributes
ACN	840495
Time
Date	200906
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZZ.Airport
State Reference	FO
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Cessna 402/402C/B379 Businessliner/Utiliner
Operating Under FAR Part	Part 135
Flight Phase	Initial Climb
Route In Use	Vectors
Flight Plan	IFR
Component
Aircraft Component	Exterior Pax/Crew Door
Person 1
Function	Single Pilot Captain Pilot Flying
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Flight Instructor Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 250 Flight Crew Total 3600 Flight Crew Type 400
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

On takeoff; the upper passenger door opened in flight around 1;000 AGL. Prior to the event; there was no door warning light illuminated. I believe that in order to prevent these type of events from happening in the future; in the cessna 402 that there needs to be a redesign of the entire passenger door and door warning system. It should be impossible to have a door not properly secured and to not have a door warning indication.

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Original NASA ASRS Text

Title: A C402 pilot reported the upper passenger door's upper section opened in flight with no prior warning. The reporter recommended a redesign of the door and/or warning system.

Narrative: On takeoff; the upper passenger door opened in flight around 1;000 AGL. Prior to the event; there was no door warning light illuminated. I believe that in order to prevent these type of events from happening in the future; in the Cessna 402 that there needs to be a redesign of the entire passenger door and door warning system. It should be impossible to have a door not properly secured and to not have a door warning indication.

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.