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Flight crew of medium large transport has a split flap condition on approach to land. A go around is executed while QRH is referenced. Emergency equipment is rolled and landing made with 2 degrees of flaps.
| Attributes | |
| ACN | 409891 |
| Time | |
| Date | 199808 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : bos |
| State Reference | MA |
| Altitude | agl bound lower : 0 agl bound upper : 3000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : bos |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach landing : go around landing other |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : cfi pilot : commercial pilot : flight engineer pilot : instrument |
| Experience | flight time last 90 days : 210 flight time total : 11000 flight time type : 4200 |
| ASRS Report | 409891 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 14000 |
| ASRS Report | 410028 |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : declared emergency other other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
On approach (visual ILS backup) runway 4R bos, flaps were positioned from 1 degree to 5 degrees. The right flap indicator showed 2 degrees flaps and the left flap continued to 5 degrees flaps. I went around and continued to fly the airplane. The captain ran all the checklists using our QRH, rolled the emergency procedure and positioned the flaps to 2 degrees for the approach. The landing was uneventful. Consulted brake cooling chart and waited for the cooling time to expire.
Original NASA ASRS Text
Title: FLC OF MLG HAS A SPLIT FLAP CONDITION ON APCH TO LAND. A GAR IS EXECUTED WHILE QRH IS REFED. EMER EQUIP IS ROLLED AND LNDG MADE WITH 2 DEGS OF FLAPS.
Narrative: ON APCH (VISUAL ILS BACKUP) RWY 4R BOS, FLAPS WERE POSITIONED FROM 1 DEG TO 5 DEGS. THE R FLAP INDICATOR SHOWED 2 DEGS FLAPS AND THE L FLAP CONTINUED TO 5 DEGS FLAPS. I WENT AROUND AND CONTINUED TO FLY THE AIRPLANE. THE CAPT RAN ALL THE CHKLISTS USING OUR QRH, ROLLED THE EMER PROC AND POSITIONED THE FLAPS TO 2 DEGS FOR THE APCH. THE LNDG WAS UNEVENTFUL. CONSULTED BRAKE COOLING CHART AND WAITED FOR THE COOLING TIME TO EXPIRE.
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.