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A B737-300 flight crew suffered the loss of trailing edge flap control and landed with only leading edge devices deployed.
| Attributes | |
| ACN | 879247 |
| Time | |
| Date | 201003 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Flap Control (Trailing & Leading Edge) |
| Person 1 | |
| Function | Pilot Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 140 |
| Person 2 | |
| Function | First Officer Pilot Not Flying |
| Experience | Flight Crew Last 90 Days 192 Flight Crew Type 4000 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy |
Narrative:
On approach our trailing edge flaps failed to extend. I instructed the first officer to scan all the circuit breakers [cbs]. He did and noted none out. We raised the gear; got extended vectors; and ran the QRH. Using the checklist; we tried the alternate flap extension which extended the leading edge flaps only. We continued the QRH and established our landing speed for our configuration. At about ten miles out; we configured with landing gear and leading edge flaps extended. I then asked the first officer to check the circuit breakers one more time. This time he found the alt flap ext-AC breaker right behind his head popped. I had him reset it. This raised the leading edge flaps. I increased airspeed slightly and instructed him to select flaps five. Again the trailing edge flaps did not move. I then told him to pull the circuit breaker and run the leading edge flaps back out using the alternate flap switch. He did and we ran through the QRH again to ensure we were back to our original configuration and speed. We continued with the before landing checklist and landed uneventfully. We also had notified operatons and asked them to call maintenance and dispatch.
Original NASA ASRS Text
Title: A B737-300 flight crew suffered the loss of trailing edge flap control and landed with only leading edge devices deployed.
Narrative: On approach our trailing edge flaps failed to extend. I instructed the First Officer to scan all the circuit breakers [CBs]. He did and noted none out. We raised the gear; got extended vectors; and ran the QRH. Using the checklist; we tried the alternate flap extension which extended the leading edge flaps only. We continued the QRH and established our landing speed for our configuration. At about ten miles out; we configured with landing gear and leading edge flaps extended. I then asked the First Officer to check the circuit breakers one more time. This time he found the Alt Flap Ext-AC breaker right behind his head popped. I had him reset it. This raised the leading edge flaps. I increased airspeed slightly and instructed him to select flaps five. Again the trailing edge flaps did not move. I then told him to pull the CB and run the leading edge flaps back out using the Alternate Flap switch. He did and we ran through the QRH again to ensure we were back to our original configuration and speed. We continued with the Before Landing checklist and landed uneventfully. We also had notified Operatons and asked them to call Maintenance and Dispatch.
Data retrieved from NASA's ASRS site as of April 2012 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.