Aborted takeoff. - NASA ASRS

Attributes
ACN	279602
Time
Date	199407
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : dca
State Reference	DC
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : ind
Operator	common carrier : air carrier
Make Model Name	B727-200
Operating Under FAR Part	Part 121
Flight Phase	ground : preflight other other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Experience	flight time last 90 days : 200 flight time total : 5000
ASRS Report	279602
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : less severe other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : rejected takeoff other
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

During the throttle advance for takeoff, we had no EPR indications on either engine. On return to gate, we checked EPR gauge circuit breakers. They were in. When the mechanic came in to the cockpit, he checked the circuit breakers and confirmed all were in. During the troubleshooting, we checked the circuit breakers again and now they were out. We reset them and they worked normally. I check the circuit breakers once when I enter the cockpit from a standing position and support myself by placing my arms on the seat back (B-737-200). Then I move my head forward and back to check the circuit breakers. I also check the circuit breakers from the seat when I read the checklist. Both times I never saw any circuit breakers out. I went back to see if I could have missed them and found it might have been possible because my right arm could have blocked the view of these circuit breakers even if I moved forward and back. However, I could have seen them from my seat, but I might not have had enough angle for line of sight to see them out. However, both the captain and maintenance also checked them. I assume that the circuit breakers were popped without being out.

Original NASA ASRS Text

Title: ABORTED TKOF.

Narrative: DURING THE THROTTLE ADVANCE FOR TKOF, WE HAD NO EPR INDICATIONS ON EITHER ENG. ON RETURN TO GATE, WE CHKED EPR GAUGE CIRCUIT BREAKERS. THEY WERE IN. WHEN THE MECH CAME IN TO THE COCKPIT, HE CHKED THE CIRCUIT BREAKERS AND CONFIRMED ALL WERE IN. DURING THE TROUBLESHOOTING, WE CHKED THE CIRCUIT BREAKERS AGAIN AND NOW THEY WERE OUT. WE RESET THEM AND THEY WORKED NORMALLY. I CHK THE CIRCUIT BREAKERS ONCE WHEN I ENTER THE COCKPIT FROM A STANDING POS AND SUPPORT MYSELF BY PLACING MY ARMS ON THE SEAT BACK (B-737-200). THEN I MOVE MY HEAD FORWARD AND BACK TO CHK THE CIRCUIT BREAKERS. I ALSO CHK THE CIRCUIT BREAKERS FROM THE SEAT WHEN I READ THE CHKLIST. BOTH TIMES I NEVER SAW ANY CIRCUIT BREAKERS OUT. I WENT BACK TO SEE IF I COULD HAVE MISSED THEM AND FOUND IT MIGHT HAVE BEEN POSSIBLE BECAUSE MY R ARM COULD HAVE BLOCKED THE VIEW OF THESE CIRCUIT BREAKERS EVEN IF I MOVED FORWARD AND BACK. HOWEVER, I COULD HAVE SEEN THEM FROM MY SEAT, BUT I MIGHT NOT HAVE HAD ENOUGH ANGLE FOR LINE OF SIGHT TO SEE THEM OUT. HOWEVER, BOTH THE CAPT AND MAINT ALSO CHKED THEM. I ASSUME THAT THE CIRCUIT BREAKERS WERE POPPED WITHOUT BEING OUT.

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.