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B737-700 captain mistakenly turned off 'B' hydraulic system pump instead of engine anti-ice. Error was corrected and flight continued uneventfully.
| Attributes | |
| ACN | 675611 |
| Time | |
| Date | 200510 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : ord.airport |
| State Reference | IL |
| Altitude | msl single value : 13000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : c90.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B737-700 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Experience | flight time last 90 days : 240 flight time total : 15000 flight time type : 11000 |
| ASRS Report | 675611 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : published procedure |
| Independent Detector | other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : overcame equipment problem |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Environmental Factor |
| Primary Problem | Flight Crew Human Performance |
Narrative:
On climb out; cleared top of cloud at 13000 ft. Reached up and turned off 'B' hydraulic pumps instead of engine anti-ice. Didn't realize it until after contacting maintenance and dispatch and getting clearance to return to mdw. Sun angle was a factor since it was reflecting off the cloud top and onto the overhead panel but after turning south; noticed the anti-ice switches on; and the 'B' hydraulic lights on; and switches off. Complacency was a larger factor because I didn't look at the blue lights for them to turn bright and then off after selection of switches. ATC then got our original clearance and we proceeded uneventfully. A big lesson learned and am reporting it so somebody else doesn't have to go through the same thing that I did.
Original NASA ASRS Text
Title: B737-700 CAPT MISTAKENLY TURNED OFF 'B' HYD SYS PUMP INSTEAD OF ENG ANTI-ICE. ERROR WAS CORRECTED AND FLT CONTINUED UNEVENTFULLY.
Narrative: ON CLBOUT; CLRED TOP OF CLOUD AT 13000 FT. REACHED UP AND TURNED OFF 'B' HYD PUMPS INSTEAD OF ENG ANTI-ICE. DIDN'T REALIZE IT UNTIL AFTER CONTACTING MAINT AND DISPATCH AND GETTING CLRNC TO RETURN TO MDW. SUN ANGLE WAS A FACTOR SINCE IT WAS REFLECTING OFF THE CLOUD TOP AND ONTO THE OVERHEAD PANEL BUT AFTER TURNING S; NOTICED THE ANTI-ICE SWITCHES ON; AND THE 'B' HYD LIGHTS ON; AND SWITCHES OFF. COMPLACENCY WAS A LARGER FACTOR BECAUSE I DIDN'T LOOK AT THE BLUE LIGHTS FOR THEM TO TURN BRIGHT AND THEN OFF AFTER SELECTION OF SWITCHES. ATC THEN GOT OUR ORIGINAL CLRNC AND WE PROCEEDED UNEVENTFULLY. A BIG LESSON LEARNED AND AM RPTING IT SO SOMEBODY ELSE DOESN'T HAVE TO GO THROUGH THE SAME THING THAT I DID.
Data retrieved from NASA's ASRS site as of January 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.