Narrative:

While on approach, localizer/ILS runway 19 pgv, we experienced fluctuations, torque plus or minus 1000 pounds, other engine instruments also jumping in unison, consistent with the type made by an autofeathering device going haywire (this aircraft is equipped with one). We shut down the engine in accordance with our emergency checklist (we call the QRH) and landed in pgv without further incident. The event happened just prior to the OM as ZDC was handing us off to unicom. We decided not to declare an emergency as we were in close on the approach and wanted to focus our attention on completing the approach and landing safely. We did notify ZDC of our situation and told them we would not be needing assistance.

Google
 

Original NASA ASRS Text

Title: COMMUTER LTT HAS ENG INST FLUCTUATIONS SIMILAR TO AUTOFEATHERING ON ILS APCH. CONTINUES TO LNDG.

Narrative: WHILE ON APCH, LOC/ILS RWY 19 PGV, WE EXPERIENCED FLUCTUATIONS, TORQUE PLUS OR MINUS 1000 POUNDS, OTHER ENG INSTS ALSO JUMPING IN UNISON, CONSISTENT WITH THE TYPE MADE BY AN AUTOFEATHERING DEVICE GOING HAYWIRE (THIS ACFT IS EQUIPPED WITH ONE). WE SHUT DOWN THE ENG IN ACCORDANCE WITH OUR EMER CHKLIST (WE CALL THE QRH) AND LANDED IN PGV WITHOUT FURTHER INCIDENT. THE EVENT HAPPENED JUST PRIOR TO THE OM AS ZDC WAS HANDING US OFF TO UNICOM. WE DECIDED NOT TO DECLARE AN EMER AS WE WERE IN CLOSE ON THE APCH AND WANTED TO FOCUS OUR ATTN ON COMPLETING THE APCH AND LNDG SAFELY. WE DID NOTIFY ZDC OF OUR SITUATION AND TOLD THEM WE WOULD NOT BE NEEDING ASSISTANCE.

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.