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Flight crew of mdt cleared for descent retards the power levers which move just fine, but power on the left engine remains at cruise power. After communication with dispatch and maintenance they are able to switch to standby controls and continue the descent and landing.
| Attributes | |
| ACN | 399736 |
| Time | |
| Date | 199804 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : oxi airport : ord |
| State Reference | IN |
| Altitude | msl bound lower : 9000 msl bound upper : 9000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zau |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | cruise other descent other landing other |
| Route In Use | arrival other enroute other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial pilot : cfi |
| Experience | flight time last 90 days : 150 flight time total : 2300 flight time type : 800 |
| ASRS Report | 399736 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : overcame equipment problem |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
23 mi southeast of knox VOR, ZAU cleared us down to 9000 ft. Captain (PF) commenced the descent by retarding the power levers. Both levers moved, however, the left engine power remained at the cruise power rating -- unaffected by movement of the power lever. The descent was uneventful. We called our dispatch and maintenance. We were able to switch control for that power lever to the standby controls and fly the aircraft using that method. We notified ATC of our problem and continued into ord, shot an approach, and landed without any problems. Flight attendants were notified in-flight of our problem. Also, CRM worked well and we encountered no difficulty. Emergency checklist was viewed in-flight but there really wasn't a checklist that matched the scenario. We were able to work with approach to get airspds that would remain constant through the approach.
Original NASA ASRS Text
Title: FLC OF MDT CLRED FOR DSCNT RETARDS THE PWR LEVERS WHICH MOVE JUST FINE, BUT PWR ON THE L ENG REMAINS AT CRUISE PWR. AFTER COM WITH DISPATCH AND MAINT THEY ARE ABLE TO SWITCH TO STANDBY CTLS AND CONTINUE THE DSCNT AND LNDG.
Narrative: 23 MI SE OF KNOX VOR, ZAU CLRED US DOWN TO 9000 FT. CAPT (PF) COMMENCED THE DSCNT BY RETARDING THE PWR LEVERS. BOTH LEVERS MOVED, HOWEVER, THE L ENG PWR REMAINED AT THE CRUISE PWR RATING -- UNAFFECTED BY MOVEMENT OF THE PWR LEVER. THE DSCNT WAS UNEVENTFUL. WE CALLED OUR DISPATCH AND MAINT. WE WERE ABLE TO SWITCH CTL FOR THAT PWR LEVER TO THE STANDBY CTLS AND FLY THE ACFT USING THAT METHOD. WE NOTIFIED ATC OF OUR PROB AND CONTINUED INTO ORD, SHOT AN APCH, AND LANDED WITHOUT ANY PROBS. FLT ATTENDANTS WERE NOTIFIED INFLT OF OUR PROB. ALSO, CRM WORKED WELL AND WE ENCOUNTERED NO DIFFICULTY. EMER CHKLIST WAS VIEWED INFLT BUT THERE REALLY WASN'T A CHKLIST THAT MATCHED THE SCENARIO. WE WERE ABLE TO WORK WITH APCH TO GET AIRSPDS THAT WOULD REMAIN CONSTANT THROUGH THE APCH.
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.