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Small transport cpr pilot declares emergency and reverses course back to departure airport as aircraft is unable to maintain altitude due to rime ice accumulation. As a side issue, the door popped open and he then lost his approach plates.
| Attributes | |
| ACN | 167410 |
| Time | |
| Date | 199101 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : per |
| State Reference | OK |
| Altitude | msl bound lower : 5000 msl bound upper : 5000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Dawn |
| Aircraft 1 | |
| Operator | general aviation : corporate |
| Make Model Name | Small Transport, Low Wing, 2 Recip Eng |
| Flight Phase | cruise other |
| Route In Use | enroute airway : zkc |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : private pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 18 flight time total : 620 flight time type : 180 |
| ASRS Report | 167410 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Events | |
| Anomaly | aircraft equipment problem : critical altitude deviation : excursion from assigned altitude inflight encounter other other anomaly |
| Independent Detector | other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : declared emergency flight crew : exited adverse environment other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
After departing pnc in IMC early morning darkness, encountered severe rime ice. Shortly thereafter, passenger door opened, which in turn lost approach plates. Due to accumulation of airframe ice, was unable to hold assigned altitude, and with the loss of intended destination approach plates, declared an emergency. Returned to pnc with an uneventful landing.
Original NASA ASRS Text
Title: SMT CPR PLT DECLARES EMERGENCY AND REVERSES COURSE BACK TO DEP ARPT AS ACFT IS UNABLE TO MAINTAIN ALT DUE TO RIME ICE ACCUMULATION. AS A SIDE ISSUE, THE DOOR POPPED OPEN AND HE THEN LOST HIS APCH PLATES.
Narrative: AFTER DEPARTING PNC IN IMC EARLY MORNING DARKNESS, ENCOUNTERED SEVERE RIME ICE. SHORTLY THEREAFTER, PAX DOOR OPENED, WHICH IN TURN LOST APCH PLATES. DUE TO ACCUMULATION OF AIRFRAME ICE, WAS UNABLE TO HOLD ASSIGNED ALT, AND WITH THE LOSS OF INTENDED DEST APCH PLATES, DECLARED AN EMER. RETURNED TO PNC WITH AN UNEVENTFUL LNDG.
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.