A dc-8-71 flight crew experienced #2 rev unlock light on two takeoff attempts; both times they rejec...

Attributes
ACN	802958
Time
Date	200808
Local Time Of Day	0001 To 0600
Place
Locale Reference	airport : zzzz.airport
State Reference	FO
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	DC-8 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	ground : takeoff roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Experience	flight time last 90 days : 50 flight time total : 6500 flight time type : 350
ASRS Report	802958
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	aircraft equipment other aircraft equipment : rev light other flight crewa
Resolutory Action	flight crew : rejected takeoff
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

We were lined up to be cleared for takeoff. After the advancement of the throttles and a short roll; we saw the #2 reverser light come on. The captain rejected well below 80 KTS. After appropriate checklists and taxi back; we elected to try the takeoff again. The same reverser unlock light came on and a reject was accomplished again. The captain elected to go back to the gate to allow maintenance to look at the problem. After the deferral process; we departed without incident to our destination.

Original NASA ASRS Text

Title: A DC-8-71 FLT CREW EXPERIENCED #2 REV UNLOCK LIGHT ON TWO TAKEOFF ATTEMPTS; BOTH TIMES THEY REJECTED THE TAKEOFF.

Narrative: WE WERE LINED UP TO BE CLRED FOR TKOF. AFTER THE ADVANCEMENT OF THE THROTTLES AND A SHORT ROLL; WE SAW THE #2 REVERSER LIGHT COME ON. THE CAPT REJECTED WELL BELOW 80 KTS. AFTER APPROPRIATE CHKLISTS AND TAXI BACK; WE ELECTED TO TRY THE TKOF AGAIN. THE SAME REVERSER UNLOCK LIGHT CAME ON AND A REJECT WAS ACCOMPLISHED AGAIN. THE CAPT ELECTED TO GO BACK TO THE GATE TO ALLOW MAINT TO LOOK AT THE PROB. AFTER THE DEFERRAL PROCESS; WE DEPARTED WITHOUT INCIDENT TO OUR DEST.

Data retrieved from NASA's ASRS site as of May 2009 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.

A dc-8-71 flight crew experienced #2 rev unlock light on two takeoff attempts; both times they rejected the takeoff.