Flight crew of a B767 lost directional control of the aircraft during last part of the landing roll due to a stuck right engine reverser not coming out of deployment for reversing. Flight crew subsequently observed an EICAS message concerning the thrust reverser isolation valve.

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Attributes
ACN	354472
Time
Date	199611
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : anc
State Reference	AK
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B767 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	landing other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 12000 flight time type : 40
ASRS Report	354472
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	aircraft equipment problem : critical other anomaly other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : overcame equipment problem flight crew : regained aircraft control
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

After landing stowed thrust reverser levers. Began having directional control problems. In spite of attempts to straighten aircraft, situation got worse. Stopped aircraft on runway. Braking action reported fair to poor. After stopping, noted right thrust reverser still deployed and EICAS message concerning thrust reverser isolation valve.

Original NASA ASRS Text

Title: FLC OF A B767 LOST DIRECTIONAL CTL OF THE ACFT DURING LAST PART OF THE LNDG ROLL DUE TO A STUCK R ENG REVERSER NOT COMING OUT OF DEPLOYMENT FOR REVERSING. FLC SUBSEQUENTLY OBSERVED AN EICAS MESSAGE CONCERNING THE THRUST REVERSER ISOLATION VALVE.

Narrative: AFTER LNDG STOWED THRUST REVERSER LEVERS. BEGAN HAVING DIRECTIONAL CTL PROBS. IN SPITE OF ATTEMPTS TO STRAIGHTEN ACFT, SIT GOT WORSE. STOPPED ACFT ON RWY. BRAKING ACTION RPTED FAIR TO POOR. AFTER STOPPING, NOTED R THRUST REVERSER STILL DEPLOYED AND EICAS MESSAGE CONCERNING THRUST REVERSER ISOLATION VALVE.

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.