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A first officer reports about the difficulty flight crews will have pulling (opening) three circuit breakers (C/B) for the left/main; battery and right/main that are referenced in their QRH procedures for a gulfstream-200 aircraft. The three C/bs were almost flush with the overhead panel and were not the same amperage capacity noted in their flight training material.
| Attributes | |
| ACN | 1159134 |
| Time | |
| Date | 201403 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Gulfstream G200 (IAI 1126 Galaxy) |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Circuit Breaker / Fuse / Thermocouple |
| Person 1 | |
| Function | First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy |
Narrative:
While on a part 91K transcon flight; my partner for this tour and I were reviewing aircraft systems for an upcoming recurrent training event. While reading the QRH procedure for the 'emer bus fail;' we noticed that the three circuit breakers (C/B) referenced in the procedure were almost flush with the overhead panel (left/main; batt; right/main) C/bs. The procedure requires the pulling of one or several of these circuit breakers. The relative height of these breakers will make it extremely difficult to pull them out bare-handed without using a tool to comply with the procedure as outlined in the QRH. Also of note is that the training material supplied by operator and flight training contractor (cockpit poster) shows that these three circuit breakers are 60 amps; yet the circuit breakers on the operator's gulfstream-200s are 75 amps. [Recommend] replacing the circuit breakers with one that would provide better grip and leverage to allow flight crews to be able to accomplish this procedure.
Original NASA ASRS Text
Title: A First Officer reports about the difficulty flight crews will have pulling (opening) three Circuit Breakers (C/B) for the L/Main; Battery and R/Main that are referenced in their QRH procedures for a Gulfstream-200 aircraft. The three C/Bs were almost flush with the Overhead Panel and were not the same amperage capacity noted in their Flight Training Material.
Narrative: While on a Part 91K transcon flight; my partner for this tour and I were reviewing aircraft systems for an upcoming Recurrent Training event. While reading the QRH procedure for the 'Emer Bus Fail;' we noticed that the three Circuit Breakers (C/B) referenced in the procedure were almost flush with the Overhead Panel (L/Main; Batt; R/Main) C/Bs. The procedure requires the pulling of one or several of these circuit breakers. The relative height of these breakers will make it extremely difficult to pull them out bare-handed without using a tool to comply with the procedure as outlined in the QRH. Also of note is that the training material supplied by Operator and Flight Training Contractor (cockpit poster) shows that these three circuit breakers are 60 amps; yet the circuit breakers on the Operator's Gulfstream-200s are 75 amps. [Recommend] replacing the Circuit Breakers with one that would provide better grip and leverage to allow flight crews to be able to accomplish this procedure.
Data retrieved from NASA's ASRS site 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.