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An air carrier B757 made a go around after an aircraft equipment problem flaps would not move from 25 degrees to 30 degrees.
| Attributes | |
| ACN | 357116 |
| Time | |
| Date | 199612 |
| Day | Sun |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : sna |
| State Reference | CA |
| Altitude | agl bound lower : 900 agl bound upper : 1000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tower : sna |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | descent : approach landing : go around other |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : flight engineer pilot : commercial pilot : atp |
| Experience | flight time last 90 days : 210 flight time total : 10000 flight time type : 2500 |
| ASRS Report | 357116 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 17000 flight time type : 305 |
| ASRS Report | 356970 |
| Events | |
| Anomaly | aircraft equipment problem : less severe |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : overcame equipment problem flight crew : became reoriented other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
I called for flaps 30 degrees. Somewhere between 800-900 ft we received an EICAS message alerting us to a flap disagree condition. I continued the approach while the captain reselected flaps 25 degrees and then 30 degrees again. This did not clear the condition. The captain called for a missed approach which I executed. He informed ATC of our problem. I leveled the aircraft at 2000 ft and we made a positive transfer of control of the aircraft. I ran the flap disagree checklist, reviewed the flap asymmetry checklist, checked the flaps 25 degree landing performance limit and finally, the flaps 25 degree landing distance chart. By this time we were on a downwind leg for landing runway 19R at sna. The captain directed me to call our air carrier maintenance facility to inform them and solicit any information that might help our situation. The captain also directed me to call dispatch and inform them of our status. Maintenance had nothing to add that we hadn't covered. Dispatch response was immediate. I informed dispatch of situation and we decided sna was still our best option and we would continue for a normal flaps 25 degree landing. He agreed and said he would alert our station for us. The captain made a normal flaps 25 degree landing and we taxied to the gate uneventfully.
Original NASA ASRS Text
Title: AN ACR B757 MADE A GAR AFTER AN ACFT EQUIP PROB FLAPS WOULD NOT MOVE FROM 25 DEGS TO 30 DEGS.
Narrative: I CALLED FOR FLAPS 30 DEGS. SOMEWHERE BTWN 800-900 FT WE RECEIVED AN EICAS MESSAGE ALERTING US TO A FLAP DISAGREE CONDITION. I CONTINUED THE APCH WHILE THE CAPT RESELECTED FLAPS 25 DEGS AND THEN 30 DEGS AGAIN. THIS DID NOT CLR THE CONDITION. THE CAPT CALLED FOR A MISSED APCH WHICH I EXECUTED. HE INFORMED ATC OF OUR PROB. I LEVELED THE ACFT AT 2000 FT AND WE MADE A POSITIVE TRANSFER OF CTL OF THE ACFT. I RAN THE FLAP DISAGREE CHKLIST, REVIEWED THE FLAP ASYMMETRY CHKLIST, CHKED THE FLAPS 25 DEG LNDG PERFORMANCE LIMIT AND FINALLY, THE FLAPS 25 DEG LNDG DISTANCE CHART. BY THIS TIME WE WERE ON A DOWNWIND LEG FOR LNDG RWY 19R AT SNA. THE CAPT DIRECTED ME TO CALL OUR ACR MAINT FACILITY TO INFORM THEM AND SOLICIT ANY INFO THAT MIGHT HELP OUR SIT. THE CAPT ALSO DIRECTED ME TO CALL DISPATCH AND INFORM THEM OF OUR STATUS. MAINT HAD NOTHING TO ADD THAT WE HADN'T COVERED. DISPATCH RESPONSE WAS IMMEDIATE. I INFORMED DISPATCH OF SIT AND WE DECIDED SNA WAS STILL OUR BEST OPTION AND WE WOULD CONTINUE FOR A NORMAL FLAPS 25 DEG LNDG. HE AGREED AND SAID HE WOULD ALERT OUR STATION FOR US. THE CAPT MADE A NORMAL FLAPS 25 DEG LNDG AND WE TAXIED TO THE GATE UNEVENTFULLY.
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.