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Mcd widebody cargo flight crew experiences a frozen number two thrust lever when commencing descent from FL350. After holding at 4000 feet for 25 minutes in hopes of a thaw; the engine is shut down and a two engine approach and landing ensues. Ice from water deposited by a thunderstorm during loading is thought to be the cause.
| Attributes | |
| ACN | 1169761 |
| Time | |
| Date | 201404 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.TRACON |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | McDonnell Douglas Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Descent |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Throttle/Power Lever |
| Person 1 | |
| Function | First Officer Pilot Not Flying |
| Person 2 | |
| Function | Pilot Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe |
Narrative:
On initial descent from FL350; #2 throttle was frozen at 83% N1. We continued descent to lower altitude (4000) and warmer temperature and held for 25 minutes to possibly free up throttle. Decided on a precautionary shutdown and accomplished QRH procedures for engine shut down in flight. An emergency was declared and a coupled autoland ILS approach was flown to an uneventful landing. It is suspected that water from thunderstorms during loading froze #2 throttle cable at cruise.
Original NASA ASRS Text
Title: MCD widebody cargo flight crew experiences a frozen number two thrust lever when commencing descent from FL350. After holding at 4000 feet for 25 minutes in hopes of a thaw; the engine is shut down and a two engine approach and landing ensues. Ice from water deposited by a thunderstorm during loading is thought to be the cause.
Narrative: On initial descent from FL350; #2 throttle was frozen at 83% N1. We continued descent to lower altitude (4000) and warmer temperature and held for 25 minutes to possibly free up throttle. Decided on a precautionary shutdown and accomplished QRH procedures for engine shut down in flight. An emergency was declared and a coupled autoland ILS approach was flown to an uneventful landing. It is suspected that water from thunderstorms during loading froze #2 throttle cable at cruise.
Data retrieved from NASA's ASRS site 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.