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A B737-200 on approach at 1500 ft has trailing edge flap control failure caused by a disconnected electrical connector on the flap control valve.
| Attributes | |
| ACN | 475809 |
| Time | |
| Date | 200006 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : ord.airport |
| State Reference | IL |
| Altitude | msl single value : 1500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : c90.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B737-200 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | ils localizer & glide slope : 27l |
| Flight Phase | descent : approach |
| Route In Use | approach : instrument precision |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 181 flight time total : 4000 flight time type : 715 |
| ASRS Report | 475809 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : flap position indication other flight crewa other flight crewb |
| Resolutory Action | flight crew : overcame equipment problem |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
On approach into ord ILS approach to runway 27L, captain called for flaps 10 degrees, at approximately 1500 ft MSL, called flaps 15 degrees, no indication on flap position indicator. Captain called for flaps 25 degrees and again no indication. I then consulted the QRH. Referred to only applicable checklist (trailing edge flaps up landing). Captain landed aircraft safely and stopped plane with 3000 ft of runway remaining. Callback conversation with reporter revealed the following information: the reporter stated the cause of the flap extend problem was an electrical connector found disconnected on the flap control mechanism.
Original NASA ASRS Text
Title: A B737-200 ON APCH AT 1500 FT HAS TRAILING EDGE FLAP CTL FAILURE CAUSED BY A DISCONNECTED ELECTRICAL CONNECTOR ON THE FLAP CTL VALVE.
Narrative: ON APCH INTO ORD ILS APCH TO RWY 27L, CAPT CALLED FOR FLAPS 10 DEGS, AT APPROX 1500 FT MSL, CALLED FLAPS 15 DEGS, NO INDICATION ON FLAP POS INDICATOR. CAPT CALLED FOR FLAPS 25 DEGS AND AGAIN NO INDICATION. I THEN CONSULTED THE QRH. REFERRED TO ONLY APPLICABLE CHKLIST (TRAILING EDGE FLAPS UP LNDG). CAPT LANDED ACFT SAFELY AND STOPPED PLANE WITH 3000 FT OF RWY REMAINING. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE CAUSE OF THE FLAP EXTEND PROB WAS AN ELECTRICAL CONNECTOR FOUND DISCONNECTED ON THE FLAP CTL MECHANISM.
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.