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A crj captain accidentally turned off the master battery switch during the shutdown checklist at the gate; deploying the air driven generator (air driven generator).
| Attributes | |
| ACN | 791017 |
| Time | |
| Date | 200806 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet 200 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Experience | flight time last 90 days : 260 flight time total : 7000 flight time type : 6000 |
| ASRS Report | 791017 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Experience | flight time last 90 days : 210 flight time total : 1500 flight time type : 900 |
| ASRS Report | 791018 |
| Events | |
| Anomaly | non adherence : published procedure |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
During the terminating checklist; I inadvertently switched off the battery master instead of the APU generator at the APU generator/external power item. Realizing my mistake; I then switched off the APU generator. I then turned the battery master back on. I heard a sound similar to the one made by the nose doors when pump 3A is turned on; and attributed it to the electrical/hydraulic switching. During his postflt; the first officer found the air driven generator deployed. I attribute this to my inadvertent deviation from the checklist. No one was hurt. I can prevent this sort of problem by slowing down and verifying each switch twice before moving it.
Original NASA ASRS Text
Title: A CRJ CAPT ACCIDENTALLY TURNED OFF THE MASTER BATTERY SWITCH DURING THE SHUTDOWN CHECKLIST AT THE GATE; DEPLOYING THE AIR DRIVEN GENERATOR (ADG).
Narrative: DURING THE TERMINATING CHKLIST; I INADVERTENTLY SWITCHED OFF THE BATTERY MASTER INSTEAD OF THE APU GENERATOR AT THE APU GENERATOR/EXTERNAL PWR ITEM. REALIZING MY MISTAKE; I THEN SWITCHED OFF THE APU GENERATOR. I THEN TURNED THE BATTERY MASTER BACK ON. I HEARD A SOUND SIMILAR TO THE ONE MADE BY THE NOSE DOORS WHEN PUMP 3A IS TURNED ON; AND ATTRIBUTED IT TO THE ELECTRICAL/HYD SWITCHING. DURING HIS POSTFLT; THE FO FOUND THE ADG DEPLOYED. I ATTRIBUTE THIS TO MY INADVERTENT DEV FROM THE CHKLIST. NO ONE WAS HURT. I CAN PREVENT THIS SORT OF PROB BY SLOWING DOWN AND VERIFYING EACH SWITCH TWICE BEFORE MOVING IT.
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.