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A C402 pilot noticed a cabin door open warning inflight; followed by the upper half of the door opening. He expressed a lack of confidence in the door warning system since the door light was out before departure.
| Attributes | |
| ACN | 828891 |
| Time | |
| Date | 200903 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| 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 Approach |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Door |
| Person 1 | |
| Function | Single Pilot Pilot Flying |
| Person 2 | |
| Qualification | Flight Crew Multiengine Flight Crew Flight Instructor Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 150 Flight Crew Total 2200 Flight Crew Type 250 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe |
Narrative:
On initial descent; I observed the door warning light illuminate followed by the upper half of the passenger door opening. I completed the abnormal checklist for cabin door open inflight and landed uneventfully. Before engine start; company personnel shut the main cabin door and I verified the door warning light was extinguished. From the cockpit; this is the only way to verify the door is secure. Apparently; it was not actually secure; but still gave indication of being secure; therefore; not inspiring confidence in the warning system.
Original NASA ASRS Text
Title: A C402 pilot noticed a cabin door open warning inflight; followed by the upper half of the door opening. He expressed a lack of confidence in the door warning system since the door light was out before departure.
Narrative: On initial descent; I observed the door warning light illuminate followed by the upper half of the passenger door opening. I completed the abnormal checklist for cabin door open inflight and landed uneventfully. Before engine start; company personnel shut the main cabin door and I verified the door warning light was extinguished. From the cockpit; this is the only way to verify the door is secure. Apparently; it was not actually secure; but still gave indication of being secure; therefore; not inspiring confidence in the warning system.
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.