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Flight crew of B737-300 lands with 15 degree flap after receiving flap asymmetry warning not accompanied by rolling indications.
| Attributes | |
| ACN | 622264 |
| Time | |
| Date | 200305 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : ord.airport |
| State Reference | IL |
| Altitude | agl bound lower : 0 agl bound upper : 1500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : ord.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | ils localizer & glide slope : 9r |
| Flight Phase | descent : approach landing : roll |
| 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 : 23000 flight time type : 15000 |
| ASRS Report | 622264 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | aircraft equipment other aircraft equipment : flap position warning other flight crewa |
| Resolutory Action | none taken : anomaly accepted other |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
On approach to runway 9R at ord, the flap system developed a split (asymmetry) indication after selecting landing gear down and flap handle to 15 degrees. Even though the flap indicator showed an asymmetric condition the airplane flew perfectly level. There was no rolling condition or flight control problem at all. Crew decided to continue the approach to a landing utilizing flap 15 degree landing procedures.
Original NASA ASRS Text
Title: FLT CREW OF B737-300 LANDS WITH 15 DEG FLAP AFTER RECEIVING FLAP ASYMMETRY WARNING NOT ACCOMPANIED BY ROLLING INDICATIONS.
Narrative: ON APCH TO RWY 9R AT ORD, THE FLAP SYS DEVELOPED A SPLIT (ASYMMETRY) INDICATION AFTER SELECTING LNDG GEAR DOWN AND FLAP HANDLE TO 15 DEGS. EVEN THOUGH THE FLAP INDICATOR SHOWED AN ASYMMETRIC CONDITION THE AIRPLANE FLEW PERFECTLY LEVEL. THERE WAS NO ROLLING CONDITION OR FLT CTL PROB AT ALL. CREW DECIDED TO CONTINUE THE APCH TO A LNDG UTILIZING FLAP 15 DEG LNDG PROCS.
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.