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A C525's 'door seal' light illuminated at FL450. The emergency checklist was complied with. Frozen moisture on the door seal was the suspected cause.
| Attributes | |
| ACN | 899166 |
| Time | |
| Date | 201007 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Citationjet (C525/C526) - CJ I / II / III / IV |
| Operating Under FAR Part | Part 135 |
| Flight Phase | Cruise |
| Route In Use | Direct |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Exterior Pax/Crew Door |
| Person 1 | |
| Function | Pilot Flying Single Pilot |
| Qualification | Flight Crew Flight Instructor Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 100 Flight Crew Total 4300 Flight Crew Type 500 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
In cruise; at FL450; we experienced a 'door seal' annunciator and associated master caution light. We donned our oxygen masks and proceeded in accordance with the checklist. I suspect that water from the humid air was condensed to the sides of the door on the ground at our departure point from the running of the air conditioner. In flight; this water froze and the ice prevented the door seal from inflating normally.
Original NASA ASRS Text
Title: A C525's 'DOOR SEAL' light illuminated at FL450. The emergency checklist was complied with. Frozen moisture on the door seal was the suspected cause.
Narrative: In cruise; at FL450; we experienced a 'DOOR SEAL' annunciator and associated MASTER CAUTION light. We donned our oxygen masks and proceeded in accordance with the checklist. I suspect that water from the humid air was condensed to the sides of the door on the ground at our departure point from the running of the air conditioner. In flight; this water froze and the ice prevented the door seal from inflating normally.
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.