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A beech king air 200 at 17000 ft is unable to retard #1 engine from cruise power caused by fuel control throttle quadrant iced up.
| Attributes | |
| ACN | 451143 |
| Time | |
| Date | 199910 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : bfi.airport |
| State Reference | WA |
| Altitude | msl single value : 17000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | general aviation : corporate |
| Make Model Name | Super King Air 200 HDC |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | other other vortac |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : corporate |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : instrument pilot : multi engine pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 3000 flight time type : 800 |
| ASRS Report | 451143 |
| Person 2 | |
| Affiliation | company : corporate |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : multi engine pilot : commercial |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Factors | |
| Maintenance | performance deficiency : scheduled maintenance |
| Supplementary | |
| Problem Areas | Aircraft Maintenance Human Performance Flight Crew Human Performance |
| Primary Problem | Aircraft |
Narrative:
On descent after crossing chins on the chins 2 arrival for bfi, passing through 17000 ft, the left engine would not reduce power when the throttle lever was retarded. The descent continued to 3000 ft, with no change to the engine power setting on the left engine. Priority handling was requested with approach control, the left engine was shut down as a precaution approximately 6 mi out from boeing field, and a normal single engine landing was accomplished. No damage to crew or aircraft was done. Callback conversation with reporter revealed the following information: the reporter stated the throttle lever input quadrant on the fuel control was blocked by ice. The reporter said the aircraft had been washed and had flown 2 legs with no throttle problems, but on the third leg the throttle quadrant froze or was blocked by ice. The reporter stated that after about 5-10 mins on the ground the throttle was free.
Original NASA ASRS Text
Title: A BEECH KING AIR 200 AT 17000 FT IS UNABLE TO RETARD #1 ENG FROM CRUISE PWR CAUSED BY FUEL CTL THROTTLE QUADRANT ICED UP.
Narrative: ON DSCNT AFTER XING CHINS ON THE CHINS 2 ARR FOR BFI, PASSING THROUGH 17000 FT, THE L ENG WOULD NOT REDUCE PWR WHEN THE THROTTLE LEVER WAS RETARDED. THE DSCNT CONTINUED TO 3000 FT, WITH NO CHANGE TO THE ENG PWR SETTING ON THE L ENG. PRIORITY HANDLING WAS REQUESTED WITH APCH CTL, THE L ENG WAS SHUT DOWN AS A PRECAUTION APPROX 6 MI OUT FROM BOEING FIELD, AND A NORMAL SINGLE ENG LNDG WAS ACCOMPLISHED. NO DAMAGE TO CREW OR ACFT WAS DONE. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE THROTTLE LEVER INPUT QUADRANT ON THE FUEL CTL WAS BLOCKED BY ICE. THE RPTR SAID THE ACFT HAD BEEN WASHED AND HAD FLOWN 2 LEGS WITH NO THROTTLE PROBS, BUT ON THE THIRD LEG THE THROTTLE QUADRANT FROZE OR WAS BLOCKED BY ICE. THE RPTR STATED THAT AFTER ABOUT 5-10 MINS ON THE GND THE THROTTLE WAS FREE.
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.