B757-200 flight crew was advised by the subsequent flight crew that an important circuit breaker mos...

Narrative:

Outbound crew informed us they found a circuit breaker on P-6-1 out; and card attached saying 'do not operate.' circuit breaker was labeled 'right gen control unit.' the aircraft just came out of maintenance for right idg replacement. The first officer was first to the aircraft and checked circuit breaker's. I also checked circuit breaker and made the comment 'check everything; it just came out of maintenance.' this circuit breaker is almost on the floor and hidden by the first officer's flight bag. Checked with maintenance and this circuit breaker controls generator limits; i.e.; high temp; low press; etc. The generator will and did operate normally. Had no EICAS; no generator lights and no load shed. Was this circuit breaker out during the flight? I don't think so; but it could have been. How many pilots move the first officer's flight bag to check circuit breaker hidden behind it' lesson learned. I will move first officer's flight bag from now until the end of my career. Recommendation: put out a memo to all 757 crews to move first officer's bag to check hidden circuit breaker.

Original NASA ASRS Text

Title: B757-200 flight crew was advised by the subsequent flight crew that an important circuit breaker mostly hidden behind the First Officer's flight bag location had been pulled for a previous maintenance task and apparently not closed prior to the reporter's flight.

Narrative: Outbound crew informed us they found a circuit breaker on P-6-1 out; and card attached saying 'Do Not Operate.' Circuit breaker was labeled 'Right Gen Control Unit.' The aircraft just came out of maintenance for right IDG Replacement. The First Officer was first to the aircraft and checked circuit breaker's. I also checked circuit breaker and made the comment 'check everything; it just came out of maintenance.' This circuit breaker is almost on the floor and hidden by the First Officer's flight bag. Checked with maintenance and this circuit breaker controls generator limits; I.E.; high temp; low press; etc. The generator will and did operate normally. Had no EICAS; no generator lights and no load shed. Was this circuit breaker out during the flight? I don't think so; but it could have been. How many Pilots move the First Officer's flight bag to check circuit breaker hidden behind it' Lesson learned. I will move First Officer's flight bag from now until the end of my career. Recommendation: Put out a memo to all 757 crews to move First Officer's bag to check hidden circuit breaker.

Data retrieved from NASA's ASRS site as of April 2012 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.

Attributes
ACN	844616
Time
Date	200907
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	Parked
Flight Plan	IFR
Component
Aircraft Component	Circuit Breaker / Fuse / Thermocouple
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 60 Flight Crew Total 22000 Flight Crew Type 1800
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy

B757-200 flight crew was advised by the subsequent flight crew that an important circuit breaker mostly hidden behind the first officer's flight bag location had been pulled for a previous maintenance task and apparently not closed prior to the reporter's flight.