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The captain of an air carrier BA31 opened the oil cooler flaps inadvertently while above the limit airspeed for the flaps to be open.
| Attributes | |
| ACN | 387760 |
| Time | |
| Date | 199712 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : czq |
| State Reference | CA |
| Altitude | msl bound lower : 14000 msl bound upper : 14000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zoa |
| Operator | common carrier : air carrier |
| Make Model Name | Jetstream 31 |
| Operating Under FAR Part | Part 135 |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 240 flight time total : 2800 flight time type : 1050 |
| ASRS Report | 387769 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | non adherence : published procedure other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
During cruise the captain noticed the oil cooler flap light was on indicating that the oil cooler flaps were open. The flap open speed is 150 KTS. We slowed down from 190 KTS to 150 KTS and shut the flaps. Once on the ground in smf, a mechanic checked the flaps and found no damage. The captain stated that he may have accidentally opened the oil cooler flaps when he turned on the automatic ignitions.
Original NASA ASRS Text
Title: THE CAPT OF AN ACR BA31 OPENED THE OIL COOLER FLAPS INADVERTENTLY WHILE ABOVE THE LIMIT AIRSPD FOR THE FLAPS TO BE OPEN.
Narrative: DURING CRUISE THE CAPT NOTICED THE OIL COOLER FLAP LIGHT WAS ON INDICATING THAT THE OIL COOLER FLAPS WERE OPEN. THE FLAP OPEN SPD IS 150 KTS. WE SLOWED DOWN FROM 190 KTS TO 150 KTS AND SHUT THE FLAPS. ONCE ON THE GND IN SMF, A MECH CHKED THE FLAPS AND FOUND NO DAMAGE. THE CAPT STATED THAT HE MAY HAVE ACCIDENTALLY OPENED THE OIL COOLER FLAPS WHEN HE TURNED ON THE AUTO IGNITIONS.
Data retrieved from NASA's ASRS site as of July 2007 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.