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False warning from GPWS relative to a supposed improper flap setting for landing. Flaps were confirmed to be at correct setting.
| Attributes | |
| ACN | 358029 |
| Time | |
| Date | 199701 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : ord |
| State Reference | IL |
| Altitude | agl bound lower : 0 agl bound upper : 200 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : ord |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach landing other |
| Route In Use | approach : straight in arrival other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 300 flight time total : 16000 flight time type : 2000 |
| ASRS Report | 358029 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : second officer |
| Qualification | pilot : commercial pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 2800 flight time type : 150 |
| ASRS Report | 357147 |
| Events | |
| Anomaly | aircraft equipment problem : less severe other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | none taken : anomaly accepted other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
Received GPWS warning at 200 ft AGL on final approach to runway 22R at ord. Warning was 'too low, flaps.' flaps were in landing position (30 degrees). Landing gear was down with 3 green lights. All flap indications and aircraft feel were completely normal. Captain elected to land. Landing and rollout were normal and uneventful. It didn't make any sense to go around -- a missed approach adds additional hazards to the operation. Supplemental information from acn 357147: the captain made the decision to land vice go around after verifying that the flaps were in the proper position. The captain made his decision after receiving and verifying positive flap condition from the crew.
Original NASA ASRS Text
Title: FALSE WARNING FROM GPWS RELATIVE TO A SUPPOSED IMPROPER FLAP SETTING FOR LNDG. FLAPS WERE CONFIRMED TO BE AT CORRECT SETTING.
Narrative: RECEIVED GPWS WARNING AT 200 FT AGL ON FINAL APCH TO RWY 22R AT ORD. WARNING WAS 'TOO LOW, FLAPS.' FLAPS WERE IN LNDG POS (30 DEGS). LNDG GEAR WAS DOWN WITH 3 GREEN LIGHTS. ALL FLAP INDICATIONS AND ACFT FEEL WERE COMPLETELY NORMAL. CAPT ELECTED TO LAND. LNDG AND ROLLOUT WERE NORMAL AND UNEVENTFUL. IT DIDN'T MAKE ANY SENSE TO GAR -- A MISSED APCH ADDS ADDITIONAL HAZARDS TO THE OP. SUPPLEMENTAL INFO FROM ACN 357147: THE CAPT MADE THE DECISION TO LAND VICE GO AROUND AFTER VERIFYING THAT THE FLAPS WERE IN THE PROPER POS. THE CAPT MADE HIS DECISION AFTER RECEIVING AND VERIFYING POSITIVE FLAP CONDITION FROM THE CREW.
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.