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Crj-700 flight crew reported the captain inadvertently discharged the #1 engine fire bottle during preflight.
| Attributes | |
| ACN | 1425240 |
| Time | |
| Date | 201702 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | Regional Jet 700 ER/LR (CRJ700) |
| Flight Phase | Parked |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Powerplant Fire Extinguishing |
| Person 1 | |
| Function | Pilot Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | Pilot Not Flying First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Deviation - Procedural Published Material / Policy Ground Event / Encounter Other / Unknown |
Narrative:
Flight was running approximately 30 minutes late. I was proceeding through my first flight flow for the aircraft. I was at the stall protection test and just reaching for the guarded switch light when the number 2 flight attendant entered the cockpit and requested conditioned air for the cabin.I was looking over my shoulder at her as I pressed what I thought was the stall test switch light. Then I immediately went to the overhead panel and started the APU. As my hand was dropping from the overhead panel a 'green' switch light illuminated on the glare shield. Instinctively; I reached toward it to press and extinguish said light. Having never seeing the bottle armed/press to discharge light 'on' during line operations; I reacted as if the 'green' roll switch light was illuminated. I realized as I was pressing the switch light; just what was happening. I inadvertently discharged the left (#1) engine fire bottle.rushing to complete my first flight flow I allowed myself to get distracted. I got out of my expected flow movement. Didn't realize I 'missed' my intended switch and reacted out of instinct.
Original NASA ASRS Text
Title: CRJ-700 flight crew reported the Captain inadvertently discharged the #1 engine fire bottle during preflight.
Narrative: Flight was running approximately 30 minutes late. I was proceeding through my first flight flow for the aircraft. I was at the stall protection test and just reaching for the guarded switch light when the number 2 Flight Attendant entered the cockpit and requested conditioned air for the cabin.I was looking over my shoulder at her as I pressed what I thought was the stall test switch light. Then I immediately went to the overhead panel and started the APU. As my hand was dropping from the overhead panel a 'green' switch light illuminated on the glare shield. Instinctively; I reached toward it to press and extinguish said light. Having never seeing the Bottle Armed/Press to discharge light 'on' during line operations; I reacted as if the 'green' roll switch light was illuminated. I realized as I was pressing the switch light; just what was happening. I inadvertently discharged the left (#1) engine fire bottle.Rushing to complete my First Flight flow I allowed myself to get distracted. I got out of my expected flow movement. Didn't realize I 'missed' my intended switch and reacted out of instinct.
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.